如何在mpmovieplayer上播放avmutablecomposition？

Question

我已经彻底扫描了谷歌，这是他们在mpmovieplayercontroller上播放avmutablecomposition的方法，他们必须使用URL初始化，所以我猜真正的问题是，他们是avmutablecomposition的临时URL还是我们可以创建一个avassetexportsession如果用户不喜欢它可以删除呢？

Answer 1

使用iOS 8.0，您可以使用AVPlayerViewController - https://developer.apple.com/library/prerelease/ios/documentation/AVFoundation/Reference/AVPlayerViewController_Class/index.html

AVPlayerViewController *playerVC = ....; //initialize the playerViewController 
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:[mutableComposition copy]]; //make an immutable copy of the mutableComposition
AVPlayer *player = [AVPlayer playerWithPlayerItem:playerItem];
[playerVC setPlayer:player];