iPhone Read UIimage (frames) from video with AVFoundation

Question

Sorry for my english) Looking for information about read frames from a video with iPhone i found this project, http://www.codza.com/extracting-frames-from-movies-on-iphone/c

Answer 1

Swift 2 code to take frames with AVAssetImageGenerator:

func previewImageForLocalVideo(url:NSURL) -> UIImage?
{
    let asset = AVAsset(URL: url)
    let imageGenerator = AVAssetImageGenerator(asset: asset)
    imageGenerator.appliesPreferredTrackTransform = true

    var time = asset.duration
    //If possible - take not the first frame (it could be completely black or white on camara's videos)
    time.value = min(time.value, 2)

    do {
        let imageRef = try imageGenerator.copyCGImageAtTime(time, actualTime: nil)
        return UIImage(CGImage: imageRef)
    }
    catch let error as NSError
    {
        print("Image generation failed with error \(error)")
        return nil
    }
}