Create Thumbnail from video URL in iOS

ThumbViewController.swift

//
//  ThumbViewController.swift
//  UpgradeMySelf-ios
//
//  Created by Shubham Sharma on 19/02/20.
//  Copyright © 2020 Shubham Sharma. All rights reserved.
//

import UIKit
import AVKit

class ThumbViewController: UIViewController {
    
    @IBOutlet weak var urlField: UITextField!
    @IBOutlet weak var imageView: UIImageView!
    override func viewDidLoad() {
        super.viewDidLoad()
        
        urlField .text = "https://file-examples-com.github.io/uploads/2017/04/file_example_MP4_1280_10MG.mp4"
    }
    
    @IBAction func fetch(_ sender: Any) {
        DispatchQueue.main.async {
            self.getThumbnailFromUrl(self.urlField.text) { (image) in
                self.imageView.image = image
            }
        }
    }
    
    fileprivate func getThumbnailFromUrl(_ url: String?, _ completion: @escaping ((_ image: UIImage?)->Void)) {
        
        guard let url = URL(string: url ?? "") else { return }
        DispatchQueue.main.async {
            let asset = AVAsset(url: url)
            print(asset.duration)
            let assetImgGenerate = AVAssetImageGenerator(asset: asset)
            assetImgGenerate.appliesPreferredTrackTransform = true
            
            
            let time = CMTimeMake(value: 2, timescale: 1)
            do {
                let img: CGImage = try assetImgGenerate.copyCGImage(at: time, actualTime: nil)
                let thumbnail = UIImage(cgImage: img)
                completion(thumbnail)
            } catch (let error) {
                print("Error :: ", error.localizedDescription)
                completion(nil)
            }
        }
    }
    
}