如何从 iOS 中的自定义视频播放器屏幕捕获静止图像？

Question

我只是使用 AVFoundation 库的 AVPlayer* myPlayer 创建了我自己的自定义视频播放器。现在我想从运行上 UIButton 上播放的视频中捕捉视频的书签图像，点击 action。单击 UIButton 它会拍摄播放器屏幕快照并存储在文档目录中。请建议我该怎么做？先感谢您。

Answer 1

AVAsset *asset = [AVAsset assetWithURL:sourceURL];
AVAssetImageGenerator *imageGenerator = [[AVAssetImageGenerator alloc]initWithAsset:asset];
CMTime time = CMTimeMake(1, 1);
CGImageRef imageRef = [imageGenerator copyCGImageAtTime:time actualTime:NULL error:NULL];
UIImage *thumbnail = [UIImage imageWithCGImage:imageRef];
CGImageRelease(imageRef);  // CGImageRef won't be released by ARC

参考Link：

Create a thumbnail or image of an AVPlayer at current time

Answer 2

AVAsset *asset = [AVAsset assetWithURL:videoURL];
AVAssetImageGenerator *imageGenerator = [[AVAssetImageGenerator alloc]initWithAsset:asset];
imageGenerator.appliesPreferredTrackTransform=TRUE;


CGImageRef imageRef = [imageGenerator copyCGImageAtTime:player.currentTime
                                             actualTime:NULL error:NULL];

如何从 iOS 中的自定义视频播放器屏幕捕获静止图像？

How to capture still image from custom video player screen in iOS?

iphone

objective-c

avfoundation

ios

xcode7