iOS11 AVCaptureVideoDataOutput

iOS11にてAVCaptureVideoDataOutput を使って
静止画を撮りたいが何も表示されない

Xcode9.0
Swift4.0

Permissionの追加
NSCameraUsageDescription
NSPhotoLibraryAddUsageDescription
NSPhotoLibraryUsageDescription

iOS10で使えていたものをconvertしてビルドはできましたが
Capture画像が表示されません、真っ白な画面、videoとしての設定が問題でしょうか？

Swift4.0
1import UIKit
2import AVFoundation
3
4class ViewController: UIViewController,
5        AVCaptureVideoDataOutputSampleBufferDelegate,
6        UIGestureRecognizerDelegate {
7    
8    var input:AVCaptureDeviceInput!
9    var output:AVCaptureVideoDataOutput!
10    var session:AVCaptureSession!
11    var camera:AVCaptureDevice!
12    var imageView:UIImageView!
13    
14    override func viewDidLoad() {
15        super.viewDidLoad()
16        
17        let tapGesture:UITapGestureRecognizer = UITapGestureRecognizer(
18            target: self, action: #selector(ViewController.tapped(_:)))
19        tapGesture.delegate = self;
20        self.view.addGestureRecognizer(tapGesture)
21    }
22    
23    override func viewWillAppear(_ animated: Bool) {
24        setupDisplay()
25        setupCamera()
26    }
27    
28    // メモリ解放
29    override func viewDidDisappear(_ animated: Bool) {
30        session.stopRunning()
31        
32        for output in session.outputs {
33            session.removeOutput((output as? AVCaptureOutput)!)
34        }
35        
36        for input in session.inputs {
37            session.removeInput((input as? AVCaptureInput)!)
38        }
39        session = nil
40        camera = nil
41    }
42    
43    func setupDisplay(){
44        let screenWidth = UIScreen.main.bounds.size.width;
45        let screenHeight = UIScreen.main.bounds.size.height;
46        imageView = UIImageView()
47        imageView.frame = CGRect(x: 0.0, y: 0.0,
48                         width: screenWidth, height: screenHeight)
49    }
50    
51    func setupCamera(){
52        session = AVCaptureSession()
53        session.sessionPreset = AVCaptureSession.Preset.high
54
55        camera = AVCaptureDevice.default(
56            AVCaptureDevice.DeviceType.builtInWideAngleCamera,
57                                         for: AVMediaType.video,
58                                         position: .back)
59        do {
60            input = try AVCaptureDeviceInput(device: camera) as AVCaptureDeviceInput
61        } catch let error as NSError {
62            print(error)
63        }
64        
65        if(session.canAddInput(input)) {
66            session.addInput(input)
67        }
68        
69        output = AVCaptureVideoDataOutput()
70        if(session.canAddOutput(output)) {
71            session.addOutput(output)
72        }
73        
74        // ピクセルフォーマットを 32bit BGR + A とする
75        output.videoSettings = [kCVPixelBufferPixelFormatTypeKey as AnyHashable as! String : Int(kCVPixelFormatType_32BGRA)]
76        
77        // フレームをキャプチャするためのサブスレッド用のシリアルキューを用意
78        output.setSampleBufferDelegate(self, queue: DispatchQueue.main)
79        
80        output.alwaysDiscardsLateVideoFrames = true
81        
82        // ビデオ出力に接続
83        let connection  = output.connection(with: AVMediaType.video)
84
85        session.startRunning()
86        do {
87            try camera.lockForConfiguration()
88            camera.activeVideoMinFrameDuration = CMTimeMake(1, 30)            
89            camera.unlockForConfiguration()
90        } catch _ {
91        }
92    }
93    
94    
95    func captureOutput(_ didOutput: AVCaptureOutput, sampleBuffer: CMSampleBuffer,
96                       from connection: AVCaptureConnection) {
97
98        let image:UIImage = self.captureImage(sampleBuffer)
99        
100        DispatchQueue.main.async {
101            self.imageView.image = image
102            self.view.addSubview(self.imageView)
103        }
104    }
105    
106    func captureImage(_ sampleBuffer:CMSampleBuffer) -> UIImage{
107
108        let imageBuffer:CVImageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer)!
109        
110        CVPixelBufferLockBaseAddress(imageBuffer, CVPixelBufferLockFlags(rawValue: CVOptionFlags(0)))
111        
112        let baseAddress:UnsafeMutableRawPointer = CVPixelBufferGetBaseAddressOfPlane(imageBuffer, 0)!
113        
114        let bytesPerRow:Int = CVPixelBufferGetBytesPerRow(imageBuffer)
115        let width:Int = CVPixelBufferGetWidth(imageBuffer)
116        let height:Int = CVPixelBufferGetHeight(imageBuffer)
117        
118        let colorSpace:CGColorSpace = CGColorSpaceCreateDeviceRGB()
119        
120        let newContext:CGContext = CGContext(data: baseAddress, width: width, height: height, bitsPerComponent: 8, bytesPerRow: bytesPerRow, space: colorSpace,  bitmapInfo: CGImageAlphaInfo.premultipliedFirst.rawValue|CGBitmapInfo.byteOrder32Little.rawValue)!
121        
122        let imageRef:CGImage = newContext.makeImage()!
123        let resultImage = UIImage(cgImage: imageRef, scale: 1.0, orientation: UIImageOrientation.right)
124        
125        return resultImage
126    }
127    
128    
129    @objc func tapped(_ sender: UITapGestureRecognizer){
130        takeStillPicture()
131    }
132    
133    func takeStillPicture(){
134        if var _:AVCaptureConnection = output.connection(with: AVMediaType.video){
135            // アルバムに追加
136            UIImageWriteToSavedPhotosAlbum(self.imageView.image!, self, nil, nil)
137        }
138        
139    }
140    
141    
142    override func didReceiveMemoryWarning() {
143        super.didReceiveMemoryWarning()
144        // Dispose of any resources that can be recreated.
145    }
146}
147

Logとして出力されているのは

[MC] Reading from public effective user settings.
refreshPreferences: HangTracerEnabled: 0
refreshPreferences: HangTracerDuration: 500
refreshPreferences: ActivationLoggingEnabled: 0 ActivationLoggingTaskedOffByDA:0