swift - 无法使用自定义相机拍摄照片

Question

我正在尝试显示从我的自定义相机拍摄的图像(来自类似 snapchat 的菜单，您可以在其中向右滑动以打开左侧的相机)。我将代码更新为 3.0，但现在它给了我这个错误:“AVCapturePhotoOutput”没有成员“captureStillImageAsynchronouslyFromConnection”，我找不到修复它的方法。 override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(动画)

    captureSession = AVCaptureSession()
    captureSession?.sessionPreset = AVCaptureSession.Preset.hd1920x1080

    let backCamera = AVCaptureDevice.default(for: AVMediaType.video)

    do {
        let input = try AVCaptureDeviceInput(device: backCamera!)

        if (captureSession?.canAddInput(input) != nil) {
            captureSession?.addInput(input)

            stillImageOutput = AVCapturePhotoOutput()

            captureSession?.addOutput(stillImageOutput!)
            previewLayer = AVCaptureVideoPreviewLayer(session: captureSession!)
            previewLayer?.videoGravity = AVLayerVideoGravity.resizeAspect
            cameraView.layer.addSublayer(previewLayer!)
            captureSession?.startRunning()
        }

    } catch {
        print("Something is wrong with the camera")
    }

}
func didPressTakePhoto() {
        if let videoConnection = stillImageOutput?.connection(with: AVMediaType.video) {
            videoConnection.videoOrientation = AVCaptureVideoOrientation.portrait
            stillImageOutput?.captureStillImageAsynchronouslyFromConnection(videoConnection, completionHandler: {
                (sampleBuffer, error) in

                if sampleBuffer != nil {
                    var imageData = AVCaptureStillImageOutput.jsegStillImageNSDataRepresentation(sampleBuffer)
                    var dataProfider = CGDataProviderCreateWithCFData(imageData)
                    var cgImageRef = CGImageCreateWithJPEGDataProvider(dataProvider, nil, true, kCGRenderingIntentDefault)

                    var image = UIImage(CGImage: cgImageRef, scale: 1.0, orientation: UIImageOrientation.right)

                    self.tempImageView.image = image
                    self.tempImageView.isHidden = true
                }


            })
        }
    }
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    didPressTakePhoto()
}

我注意到 stillImageOutput 已被弃用，现在改用 AVCapturePhotoOutput。在 3.0 中(使用 AVCapturePhotoOutput)编写 captureStillImageAsynchronously 的正确方法是什么？

我看到了这个问题的其他答案，但没有一个对我有用。我想要的只是在预览照片时点击(操作)拍摄照片(我可以接受它并在接受后执行其他逻辑)。

Answer 1

let photoSettings = AVCapturePhotoSettings()
photoSettings.isAutoStillImageStabilizationEnabled = true
photoSettings.isHighResolutionPhotoEnabled = true
photoSettings.flashMode = .auto
stillImageOutput?.capturePhoto(with: photoSettings, delegate: self)

extension YourViewController: AVCapturePhotoCaptureDelegate {
    func photoOutput(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhoto photoSampleBuffer: CMSampleBuffer?, ..., error: Error?) {
        guard error == nil, let photoSampleBuffer = photoSampleBuffer else { return }
        guard let imageData = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: photoSampleBuffer, previewPhotoSampleBuffer: previewPhotoSampleBuffer) else { return }
        let capturedImage = UIImage(data: imageData, scale: 1.0)
        ...
    }
}

手写，如有错别字请见谅