与自定义相机Swift 3拍照
在Swift 2.3中，我使用这个代码在自定义相机中拍照：
func didPressTakePhoto(){ if let videoConnection = stillImageOutput!.connection(withMediaType: AVMediaTypeVideo) { stillImageOutput?.captureStillImageAsynchronouslyFromConnection(videoConnection, completionHandler: { (sampleBuffer, error) -> Void in if sampleBuffer != nil { let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sampleBuffer) let dataProvider = CGDataProviderCreateWithCFData(imageData) let cgImageRef = CGImageCreateWithJPEGDataProvider(dataProvider, nil, true, CGColorRenderingIntent.RenderingIntentDefault) let image = UIImage(CGImage: cgImageRef!, scale: 1.0, orientation: UIImageOrientation.Right) self.captureImageView.image = image } }) } } 但他的行： stillImageOutput?.captureStillImageAsynchronouslyFromConnection(videoConnection, completionHandler: { (sampleBuffer, error) -> Void in
显示这个错误：
types'AVCapturePhotoOutput'的值没有成员'captureStillImageAsynchronouslyFromConnection'
我试着解决我的问题，但我总是得到越来越多的错误，所以这就是为什么我张贴我的原代码。
有人知道如何使我的代码再次工作？
谢谢。
你可以像这样在Swift 3中使用AVCapturePhotoOutput ：
您需要返回CMSampleBuffer的AVCapturePhotoCaptureDelegate 。
如果您告诉AVCapturePhotoSettings的previewFormat，您也可以获得预览图像
class CameraCaptureOutput: NSObject, AVCapturePhotoCaptureDelegate { let cameraOutput = AVCapturePhotoOutput() func capturePhoto() { let settings = AVCapturePhotoSettings() let previewPixelType = settings.availablePreviewPhotoPixelFormatTypes.first! let previewFormat = [kCVPixelBufferPixelFormatTypeKey as String: previewPixelType, kCVPixelBufferWidthKey as String: 160, kCVPixelBufferHeightKey as String: 160, ] settings.previewPhotoFormat = previewFormat self.cameraOutput.capturePhoto(with: settings, delegate: self) } func capture(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhotoSampleBuffer photoSampleBuffer: CMSampleBuffer?, previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings, bracketSettings: AVCaptureBracketedStillImageSettings?, error: NSError?) { if let error = error { print(error.localizedDescription) } if let sampleBuffer = photoSampleBuffer, let previewBuffer = previewPhotoSampleBuffer, let dataImage = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: sampleBuffer, previewPhotoSampleBuffer: previewBuffer) { print(image: UIImage(data: dataImage).size) } else { } } }
感谢Sharpkits，我find了我的解决scheme（此代码适用于我）：
func capture(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhotoSampleBuffer photoSampleBuffer: CMSampleBuffer?, previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings, bracketSettings: AVCaptureBracketedStillImageSettings?, error: Error?) { if let error = error { print(error.localizedDescription) } if let sampleBuffer = photoSampleBuffer, let previewBuffer = previewPhotoSampleBuffer, let dataImage = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: sampleBuffer, previewPhotoSampleBuffer: previewBuffer) { let imageData = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: sampleBuffer, previewPhotoSampleBuffer: nil) let dataProvider = CGDataProvider(data: imageData as! CFData) let cgImageRef = CGImage(jpegDataProviderSource: dataProvider!, decode: nil, shouldInterpolate: true, intent: CGColorRenderingIntent.absoluteColorimetric) let image = UIImage(cgImage: cgImageRef!, scale: 1.0, orientation: UIImageOrientation.right) let cropedImage = self.cropToSquare(image: image) let newImage = self.scaleImageWith(cropedImage, and: CGSize(width: 600, height: 600)) print(UIScreen.main.bounds.width) self.tempImageView.image = newImage self.tempImageView.isHidden = false } else { } }
伟大的代码。 非常感谢帮助和例子。
为了澄清像我这样的智力较差的人，捕捉（_ …等）方法在幕后调用self.ameraOutput.capturePhoto（with：settings，delegate：self）在您的takePhoto （或不pipe你怎么说）方法。 你永远不会直接调用捕获方法。 它自动发生。