forked from mirrors/linphone-iphone
76 lines
2.6 KiB
Swift
76 lines
2.6 KiB
Swift
/*
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* Copyright (c) 2010-2023 Belledonne Communications SARL.
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*
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* This file is part of Linphone
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import Foundation
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import SwiftUI
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import AVFoundation
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class QRScannerController: UIViewController {
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var captureSession = AVCaptureSession()
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var videoPreviewLayer: AVCaptureVideoPreviewLayer?
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var qrCodeFrameView: UIView?
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var delegate: AVCaptureMetadataOutputObjectsDelegate?
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override func viewDidLoad() {
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super.viewDidLoad()
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// Get the back-facing camera for capturing videos
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guard let captureDevice = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .back) else {
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print("Failed to get the camera device")
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return
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}
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let videoInput: AVCaptureDeviceInput
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do {
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// Get an instance of the AVCaptureDeviceInput class using the previous device object.
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videoInput = try AVCaptureDeviceInput(device: captureDevice)
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} catch {
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// If any error occurs, simply print it out and don't continue any more.
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print(error)
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return
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}
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// Set the input device on the capture session.
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captureSession.addInput(videoInput)
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// Initialize a AVCaptureMetadataOutput object and set it as the output device to the capture session.
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let captureMetadataOutput = AVCaptureMetadataOutput()
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captureSession.addOutput(captureMetadataOutput)
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// Set delegate and use the default dispatch queue to execute the call back
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captureMetadataOutput.setMetadataObjectsDelegate(delegate, queue: DispatchQueue.main)
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captureMetadataOutput.metadataObjectTypes = [ .qr ]
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// Initialize the video preview layer and add it as a sublayer to the viewPreview view's layer.
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videoPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
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videoPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspectFill
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videoPreviewLayer?.frame = view.layer.bounds
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view.layer.addSublayer(videoPreviewLayer!)
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// Start video capture.
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DispatchQueue.global(qos: .background).async {
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self.captureSession.startRunning()
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}
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}
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}
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