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➓
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AVCaptureDeviceDiscoverySession
let discoverySession = AVCaptureDeviceDiscoverySession(
deviceTypes: [.builtInDuoCamera],
mediaType: AVMediaTypeVideo,
position: .back)
let devices: [AVCaptureDevice]? = discoverySession?.devices
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AVCaptureDeviceType
.builtInWideAngleCamera
.builtInTelephotoCamera
.builtInDuoCamera
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.builtInDuoCamera
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.builtInTelephotoCamera
.builtInTelephotoCamera
let captureSession = AVCaptureSession()
captureSession.addInput(wideAngleCameraDevice)
captureSession.addInput(telephotoCameraDevice)
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AVCaptureStillImageOutput
AVCapturePhotoOutput
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UIImagePickerController
AVFoundation AVCapturePhotoOutput
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AVCapturePhotoOutput
let types = photoOutput.availableRawPhotoPixelFormatTypes
let type = types.first!.uint32Value
let settings = AVCapturePhotoSettings(rawPixelFormatType: type)
photoOutput.capturePhoto(with: settings, delegate: self)
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AVCapturePhotoCaptureDelegate
rawSampleBuffer: CMSampleBuffer?
func capture(_ captureOutput: AVCapturePhotoOutput,
didFinishProcessingRawPhotoSampleBuffer rawSampleBuffer: CMSampleBu
previewPhotoSampleBuffer: CMSampleBuffer?,
resolvedSettings: AVCaptureResolvedPhotoSettings,
bracketSettings: AVCaptureBracketedStillImageSettings?,
error: Error?) {
}
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CVPixelBuffer
“rgg4”
kCVPixelFormatType_14Bayer_RGGB
// CVPixelBuffer?
let pixelBuffer = CMSampleBufferGetImageBuffer(rawSampleBuffer!)
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// Data?
let data = AVCapturePhotoOutput.dngPhotoDataRepresentation(
forRawSampleBuffer: rawSampleBuffer!,
previewPhotoSampleBuffer: previewPhotoSampleBuffer)
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import CoreImage.framework
CIFilter
CIFilter CIImage
let rawFilter = CIFilter(imageURL: rawURL, options: nil)
// Noise Reduction
let nrKey = kCIInputLuminanceNoiseReductionAmountKey
if let nr = rawFilter?.value(forKey: nrKey) {
rawFilter.setValue(nr.doubleValue + 0.1, forKey: nrKey)
}
let image: CIImage? = rawFilter?.outputImage
// ‐> CGImage, UIImage, JPEG, ...
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