Grab a snapshot from a video file i#iOS #video #images #snapshot #AVFoundation #intermediate

video_snapshot_ios.m

    AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:self.recordedVideoFileURL options:nil];
    AVAssetImageGenerator *gen = [[AVAssetImageGenerator alloc] initWithAsset:asset];
    gen.appliesPreferredTrackTransform = YES;
    NSError *err = NULL;
    CMTime cmTime = CMTimeMake(time, 1);
    CGImageRef imgRef = [gen copyCGImageAtTime:cmTime actualTime:NULL error:&err];
    UIImage *img = [[UIImage alloc] initWithCGImage:imgRef];
    return img;