从视频文件 URL 捕获图像

Question

-(void)captureImageFromUrlPath : (NSString *)urlStr {

// Import this from for these classes #import <AVFoundation/AVFoundation.h>
AVURLAsset* asset = [AVURLAsset URLAssetWithURL:[NSURL fileURLWithPath:urlStr] options:nil];
AVAssetImageGenerator* imageGenerator = [AVAssetImageGenerator assetImageGeneratorWithAsset:asset];
UIImage* image = [UIImage imageWithCGImage:[imageGenerator copyCGImageAtTime:CMTimeMake(0, 1) actualTime:nil error:nil]];
UIImageView  *imageView = [[UIImageView alloc] init];
[imageView setImage:image];
[imageView setFrame:CGRectMake(0, 20, 320, 200)];
[self.view addSubview:imageView];

}

Answer 1

这是从视频文件 Url 捕获图像的最佳方式。