拍摄后如何改变图像的方向？

Question

这是我在自定义相机中用于拍摄照片的代码，但它可以正确拍摄照片，但如果假设用户旋转设备（但相机仍会像 iphone 相机一样处于纵向）并拍照，我希望以纵向拍摄该照片。如何我这样做？

        let stillImageOutput = self._getStillImageOutput()

        if let videoConnection = stillImageOutput.connection(withMediaType: AVMediaTypeVideo) {

     //   videoConnection.videoOrientation = AVCaptureVideoOrientation.portrait

        stillImageOutput.captureStillImageAsynchronously(from: videoConnection , completionHandler: { [weak self] sample, error in

            if let error = error {
                DispatchQueue.main.async(execute: {
                    self?._show(NSLocalizedString("Error", comment:""), message: error.localizedDescription)
                })
                imageCompletion(nil,error as NSError?)
                return
            }

            let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sample)

             var capturedImage = UIImage(data: imageData!)[![This how photo showing if i capture by rotating Device][1]][1]

Answer 1

在 videoConnection 初始化后添加以下代码，一切顺利

switch UIDevice.current.orientation {
                case .landscapeLeft:
                    videoConnection.videoOrientation = AVCaptureVideoOrientation.landscapeRight
                    break
                case .landscapeRight:
                    videoConnection.videoOrientation = AVCaptureVideoOrientation.landscapeLeft
                    break
                case .portrait:
                     videoConnection.videoOrientation = AVCaptureVideoOrientation.portrait
                    break
                case .portraitUpsideDown:
                    videoConnection.videoOrientation = AVCaptureVideoOrientation.portraitUpsideDown
                    break
                default:
                    videoConnection.videoOrientation = AVCaptureVideoOrientation.portrait
                    break
                }

Answer 2

在拍摄图像之前设置方向

// set the image orientation in output
  if let photoOutputConnection = self.photoOutput.connection(with: .video) {
        photoOutputConnection.videoOrientation = videoPreviewLayerOrientation! // set the orientation you want
    }

self.photoOutput.capturePhoto(with: photoSettings, delegate: photoCaptureProcessor) // capture image