thumbnailImageAtTime: now deprecated - What's the alternative?

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小鲜肉
小鲜肉 2020-12-04 20:27

Until iOS7 update I was using...

UIImage *image = [moviePlayer thumbnailImageAtTime:1.0 timeOption:MPMovieTimeOptionNea         


        
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  •  再見小時候
    2020-12-04 20:42

    Managed to find a great way using AVAssetImageGenerator, please see code below...

    AVURLAsset *asset1 = [[AVURLAsset alloc] initWithURL:partOneUrl options:nil];
    AVAssetImageGenerator *generate1 = [[AVAssetImageGenerator alloc] initWithAsset:asset1];
    generate1.appliesPreferredTrackTransform = YES;
    NSError *err = NULL;
    CMTime time = CMTimeMake(1, 2);
    CGImageRef oneRef = [generate1 copyCGImageAtTime:time actualTime:NULL error:&err];
    UIImage *one = [[UIImage alloc] initWithCGImage:oneRef];
    [_firstImage setImage:one];
    _firstImage.contentMode = UIViewContentModeScaleAspectFit;
    

    Within header file, please import

    #import 
    

    It works perfect and I've been able to call it from viewDidLoad, which was quicker than calling the deprecated thumbNailImageAtTime: from the viewDidAppear.

    Hope this helps anyone else who had the same problem.

    * **Update for Swift 5.1 ****

    Useful function...

        func createThumbnailOfVideoUrl(url: URL) -> UIImage? {
            let asset = AVAsset(url: url)
            let assetImgGenerate = AVAssetImageGenerator(asset: asset)
            assetImgGenerate.appliesPreferredTrackTransform = true
    
            let time = CMTimeMakeWithSeconds(1.0, preferredTimescale: 600)
            do {
                let img = try assetImgGenerate.copyCGImage(at: time, actualTime: nil) 
                let thumbnail = UIImage(cgImage: img)
                return thumbnail
            } catch {
              print(error.localizedDescription)
              return nil
            }
        }
    

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