46 lines
1.1 KiB
Swift
46 lines
1.1 KiB
Swift
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//
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// CameraView+CodeScanner.swift
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// VisionCamera
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//
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// Created by Marc Rousavy on 03.10.23.
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// Copyright © 2023 mrousavy. All rights reserved.
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//
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import AVFoundation
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import Foundation
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extension CameraView: AVCaptureMetadataOutputObjectsDelegate {
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public func metadataOutput(_: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from _: AVCaptureConnection) {
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guard let onCodeScanned = onCodeScanned else {
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return
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}
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guard !metadataObjects.isEmpty else {
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return
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}
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// Map codes to JS values
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let codes = metadataObjects.map { object in
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var value: String?
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if let code = object as? AVMetadataMachineReadableCodeObject {
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value = code.stringValue
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}
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let frame = previewView.layerRectConverted(fromMetadataOutputRect: object.bounds)
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return [
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"type": object.type.descriptor,
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"value": value as Any,
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"frame": [
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"x": frame.origin.x,
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"y": frame.origin.y,
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"width": frame.size.width,
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"height": frame.size.height,
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],
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]
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}
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// Call JS event
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onCodeScanned([
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"codes": codes,
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])
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}
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}
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