railbird/react-native-vision-camera
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feat: New Core/ library (#1975)

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Moves everything Camera related into `core/` / `Core/` so that it is better encapsulated from React Native.

Benefits:

1. Code is much better organized. Should be easier for collaborators now, and cleaner codebase for me.
2. Locking is fully atomically as you can now only configure the session through a lock/Mutex which is batch-overridable
    * On iOS, this makes Camera startup time **MUCH** faster, I measured speedups from **1.5 seconds** to only **240 milliseconds** since we only lock/commit once! 🚀 
    * On Android, this fixes a few out-of-sync/concurrency issues like "Capture Request contains unconfigured Input/Output Surface!" since it is now a single lock-operation! 💪 
3. It is easier to integrate VisionCamera outside of React Native (e.g. Native iOS Apps, NativeScript, Flutter, etc)

With this PR, VisionCamera V3 is up to **7x** faster than V2
This commit is contained in:
Marc Rousavy 2023-10-13 18:33:20 +02:00 committed by GitHub
parent 54871022f4
commit cd0b413706
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GPG Key ID: 4AEE18F83AFDEB23
72 changed files with 2326 additions and 1521 deletions
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1
package/VisionCamera.podspec
View File

@ -41,6 +41,7 @@ Pod::Spec.new do |s|
s.source_files = [
# Core
"ios/*.{m,mm,swift}",
"ios/Core/*.{m,mm,swift}",
"ios/Extensions/*.{m,mm,swift}",
"ios/Parsers/*.{m,mm,swift}",
"ios/React Utils/*.{m,mm,swift}",

3
package/android/src/main/java/com/mrousavy/camera/CameraView+Events.kt
View File

@ -6,6 +6,9 @@ import com.facebook.react.bridge.ReactContext
import com.facebook.react.bridge.WritableMap
import com.facebook.react.uimanager.events.RCTEventEmitter
import com.google.mlkit.vision.barcode.common.Barcode
import com.mrousavy.camera.core.CameraError
import com.mrousavy.camera.core.UnknownCameraError
import com.mrousavy.camera.core.code
import com.mrousavy.camera.parsers.CodeType
fun CameraView.invokeOnInitialized() {

3
package/android/src/main/java/com/mrousavy/camera/CameraView+RecordVideo.kt
View File

@ -5,7 +5,10 @@ import android.annotation.SuppressLint
import android.content.pm.PackageManager
import androidx.core.content.ContextCompat
import com.facebook.react.bridge.*
import com.mrousavy.camera.core.MicrophonePermissionError
import com.mrousavy.camera.core.RecorderError
import com.mrousavy.camera.core.RecordingSession
import com.mrousavy.camera.core.code
import com.mrousavy.camera.parsers.Torch
import com.mrousavy.camera.parsers.VideoCodec
import com.mrousavy.camera.parsers.VideoFileType

3
package/android/src/main/java/com/mrousavy/camera/CameraView.kt
View File

@ -13,7 +13,10 @@ import android.view.Surface
import android.widget.FrameLayout
import androidx.core.content.ContextCompat
import com.facebook.react.bridge.ReadableMap
import com.mrousavy.camera.core.CameraPermissionError
import com.mrousavy.camera.core.CameraQueues
import com.mrousavy.camera.core.CameraSession
import com.mrousavy.camera.core.NoCameraDeviceError
import com.mrousavy.camera.core.PreviewView
import com.mrousavy.camera.core.outputs.CameraOutputs
import com.mrousavy.camera.extensions.bigger

2
package/android/src/main/java/com/mrousavy/camera/CameraViewModule.kt
View File

@ -9,6 +9,8 @@ import com.facebook.react.module.annotations.ReactModule
import com.facebook.react.modules.core.PermissionAwareActivity
import com.facebook.react.modules.core.PermissionListener
import com.facebook.react.uimanager.UIManagerHelper
import com.mrousavy.camera.core.CameraError
import com.mrousavy.camera.core.ViewNotFoundError
import com.mrousavy.camera.frameprocessor.VisionCameraInstaller
import com.mrousavy.camera.frameprocessor.VisionCameraProxy
import com.mrousavy.camera.parsers.*

2
package/android/src/main/java/com/mrousavy/camera/CameraError.kt → package/android/src/main/java/com/mrousavy/camera/core/CameraError.kt
View File

@ -1,4 +1,4 @@
package com.mrousavy.camera
package com.mrousavy.camera.core
import com.mrousavy.camera.core.outputs.CameraOutputs
import com.mrousavy.camera.parsers.CameraDeviceError

2
package/android/src/main/java/com/mrousavy/camera/CameraQueues.kt → package/android/src/main/java/com/mrousavy/camera/core/CameraQueues.kt
View File

@ -1,4 +1,4 @@
package com.mrousavy.camera
package com.mrousavy.camera.core
import android.os.Handler
import android.os.HandlerThread

8
package/android/src/main/java/com/mrousavy/camera/core/CameraSession.kt
View File

@ -16,15 +16,7 @@ import android.os.Build
import android.util.Log
import android.util.Range
import android.util.Size
import com.mrousavy.camera.CameraNotReadyError
import com.mrousavy.camera.CameraQueues
import com.mrousavy.camera.CameraView
import com.mrousavy.camera.CaptureAbortedError
import com.mrousavy.camera.NoRecordingInProgressError
import com.mrousavy.camera.PhotoNotEnabledError
import com.mrousavy.camera.RecorderError
import com.mrousavy.camera.RecordingInProgressError
import com.mrousavy.camera.VideoNotEnabledError
import com.mrousavy.camera.core.outputs.CameraOutputs
import com.mrousavy.camera.extensions.capture
import com.mrousavy.camera.extensions.createCaptureSession

1
package/android/src/main/java/com/mrousavy/camera/core/CodeScannerPipeline.kt
View File

@ -7,7 +7,6 @@ import com.google.mlkit.vision.barcode.BarcodeScanner
import com.google.mlkit.vision.barcode.BarcodeScannerOptions
import com.google.mlkit.vision.barcode.BarcodeScanning
import com.google.mlkit.vision.common.InputImage
import com.mrousavy.camera.CameraQueues
import com.mrousavy.camera.core.outputs.CameraOutputs
import com.mrousavy.camera.parsers.Orientation
import java.io.Closeable

1
package/android/src/main/java/com/mrousavy/camera/core/RecordingSession.kt
View File

@ -7,7 +7,6 @@ import android.os.Build
import android.util.Log
import android.util.Size
import android.view.Surface
import com.mrousavy.camera.RecorderError
import com.mrousavy.camera.parsers.Orientation
import com.mrousavy.camera.parsers.VideoCodec
import com.mrousavy.camera.parsers.VideoFileType

2
package/android/src/main/java/com/mrousavy/camera/core/VideoPipeline.kt
View File

@ -9,8 +9,6 @@ import android.os.Build
import android.util.Log
import android.view.Surface
import com.facebook.jni.HybridData
import com.mrousavy.camera.CameraQueues
import com.mrousavy.camera.FrameProcessorsUnavailableError
import com.mrousavy.camera.frameprocessor.Frame
import com.mrousavy.camera.frameprocessor.FrameProcessor
import com.mrousavy.camera.parsers.Orientation

2
package/android/src/main/java/com/mrousavy/camera/core/outputs/CameraOutputs.kt
View File

@ -9,7 +9,7 @@ import android.util.Log
import android.util.Size
import android.view.Surface
import com.google.mlkit.vision.barcode.common.Barcode
import com.mrousavy.camera.CameraQueues
import com.mrousavy.camera.core.CameraQueues
import com.mrousavy.camera.core.CodeScannerPipeline
import com.mrousavy.camera.core.VideoPipeline
import com.mrousavy.camera.extensions.bigger

6
package/android/src/main/java/com/mrousavy/camera/extensions/CameraCaptureSession+capture.kt
View File

@ -5,9 +5,9 @@ import android.hardware.camera2.CaptureFailure
import android.hardware.camera2.CaptureRequest
import android.hardware.camera2.TotalCaptureResult
import android.media.MediaActionSound
import com.mrousavy.camera.CameraQueues
import com.mrousavy.camera.CaptureAbortedError
import com.mrousavy.camera.UnknownCaptureError
import com.mrousavy.camera.core.CameraQueues
import com.mrousavy.camera.core.CaptureAbortedError
import com.mrousavy.camera.core.UnknownCaptureError
import kotlin.coroutines.resume
import kotlin.coroutines.resumeWithException
import kotlin.coroutines.suspendCoroutine

4
package/android/src/main/java/com/mrousavy/camera/extensions/CameraDevice+createCaptureSession.kt
View File

@ -8,8 +8,8 @@ import android.hardware.camera2.params.OutputConfiguration
import android.hardware.camera2.params.SessionConfiguration
import android.os.Build
import android.util.Log
import com.mrousavy.camera.CameraQueues
import com.mrousavy.camera.CameraSessionCannotBeConfiguredError
import com.mrousavy.camera.core.CameraQueues
import com.mrousavy.camera.core.CameraSessionCannotBeConfiguredError
import com.mrousavy.camera.core.outputs.CameraOutputs
import kotlin.coroutines.resume
import kotlin.coroutines.resumeWithException

6
package/android/src/main/java/com/mrousavy/camera/extensions/CameraManager+openCamera.kt
View File

@ -5,9 +5,9 @@ import android.hardware.camera2.CameraDevice
import android.hardware.camera2.CameraManager
import android.os.Build
import android.util.Log
import com.mrousavy.camera.CameraCannotBeOpenedError
import com.mrousavy.camera.CameraDisconnectedError
import com.mrousavy.camera.CameraQueues
import com.mrousavy.camera.core.CameraCannotBeOpenedError
import com.mrousavy.camera.core.CameraDisconnectedError
import com.mrousavy.camera.core.CameraQueues
import com.mrousavy.camera.parsers.CameraDeviceError
import kotlin.coroutines.resume
import kotlin.coroutines.resumeWithException

4
package/android/src/main/java/com/mrousavy/camera/frameprocessor/Frame.java
View File

@ -4,12 +4,10 @@ import android.hardware.HardwareBuffer;
import android.media.Image;
import android.os.Build;
import com.facebook.proguard.annotations.DoNotStrip;
import com.mrousavy.camera.HardwareBuffersNotAvailableError;
import com.mrousavy.camera.core.HardwareBuffersNotAvailableError;
import com.mrousavy.camera.parsers.PixelFormat;
import com.mrousavy.camera.parsers.Orientation;
import java.nio.ByteBuffer;
public class Frame {
private final Image image;
private final boolean isMirrored;

2
package/android/src/main/java/com/mrousavy/camera/frameprocessor/VisionCameraProxy.kt
View File

@ -10,7 +10,7 @@ import com.facebook.react.bridge.UiThreadUtil
import com.facebook.react.turbomodule.core.CallInvokerHolderImpl
import com.facebook.react.uimanager.UIManagerHelper
import com.mrousavy.camera.CameraView
import com.mrousavy.camera.ViewNotFoundError
import com.mrousavy.camera.core.ViewNotFoundError
import java.lang.ref.WeakReference
@Suppress("KotlinJniMissingFunction") // we use fbjni.

4
package/android/src/main/java/com/mrousavy/camera/frameprocessor/VisionCameraScheduler.java
View File

@ -2,9 +2,7 @@ package com.mrousavy.camera.frameprocessor;
import com.facebook.jni.HybridData;
import com.facebook.proguard.annotations.DoNotStrip;
import com.mrousavy.camera.CameraQueues;
import java.util.concurrent.ExecutorService;
import com.mrousavy.camera.core.CameraQueues;
@SuppressWarnings("JavaJniMissingFunction") // using fbjni here
public class VisionCameraScheduler {

2
package/android/src/main/java/com/mrousavy/camera/parsers/CodeScanner.kt
View File

@ -1,7 +1,7 @@
package com.mrousavy.camera.parsers
import com.facebook.react.bridge.ReadableMap
import com.mrousavy.camera.InvalidTypeScriptUnionError
import com.mrousavy.camera.core.InvalidTypeScriptUnionError
class CodeScanner(map: ReadableMap) {
val codeTypes: List<CodeType>

4
package/android/src/main/java/com/mrousavy/camera/parsers/CodeType.kt
View File

@ -1,8 +1,8 @@
package com.mrousavy.camera.parsers
import com.google.mlkit.vision.barcode.common.Barcode
import com.mrousavy.camera.CodeTypeNotSupportedError
import com.mrousavy.camera.InvalidTypeScriptUnionError
import com.mrousavy.camera.core.CodeTypeNotSupportedError
import com.mrousavy.camera.core.InvalidTypeScriptUnionError
enum class CodeType(override val unionValue: String) : JSUnionValue {
CODE_128("code-128"),

2
package/android/src/main/java/com/mrousavy/camera/parsers/Flash.kt
View File

@ -1,6 +1,6 @@
package com.mrousavy.camera.parsers
import com.mrousavy.camera.InvalidTypeScriptUnionError
import com.mrousavy.camera.core.InvalidTypeScriptUnionError
enum class Flash(override val unionValue: String) : JSUnionValue {
OFF("off"),

2
package/android/src/main/java/com/mrousavy/camera/parsers/PixelFormat.kt
View File

@ -1,7 +1,7 @@
package com.mrousavy.camera.parsers
import android.graphics.ImageFormat
import com.mrousavy.camera.PixelFormatNotSupportedError
import com.mrousavy.camera.core.PixelFormatNotSupportedError
enum class PixelFormat(override val unionValue: String) : JSUnionValue {
YUV("yuv"),

2
package/android/src/main/java/com/mrousavy/camera/parsers/VideoFileType.kt
View File

@ -1,6 +1,6 @@
package com.mrousavy.camera.parsers
import com.mrousavy.camera.InvalidTypeScriptUnionError
import com.mrousavy.camera.core.InvalidTypeScriptUnionError
enum class VideoFileType(override val unionValue: String) : JSUnionValue {
MOV("mov"),

4
package/android/src/main/java/com/mrousavy/camera/utils/withPromise.kt
View File

@ -1,8 +1,8 @@
package com.mrousavy.camera.utils
import com.facebook.react.bridge.Promise
import com.mrousavy.camera.CameraError
import com.mrousavy.camera.UnknownCameraError
import com.mrousavy.camera.core.CameraError
import com.mrousavy.camera.core.UnknownCameraError
inline fun withPromise(promise: Promise, closure: () -> Any?) {
try {

2
package/example/ios/Podfile.lock
View File

@ -747,7 +747,7 @@ SPEC CHECKSUMS:
SDWebImage: a7f831e1a65eb5e285e3fb046a23fcfbf08e696d
SDWebImageWebPCoder: 908b83b6adda48effe7667cd2b7f78c897e5111d
SocketRocket: f32cd54efbe0f095c4d7594881e52619cfe80b17
VisionCamera: f649cd0c0fa6266f1cd5e0787a7c9583ca143b3a
VisionCamera: f386aee60abb07d979c506ea9e6d4831e596cafe
Yoga: 8796b55dba14d7004f980b54bcc9833ee45b28ce
PODFILE CHECKSUM: 27f53791141a3303d814e09b55770336416ff4eb

9
package/example/src/CameraPage.tsx
View File

@ -47,7 +47,12 @@ export function CameraPage({ navigation }: Props): React.ReactElement {
// camera device settings
const [preferredDevice] = usePreferredCameraDevice()
const device = useCameraDevice(cameraPosition)
let device = useCameraDevice(cameraPosition)
if (preferredDevice != null && preferredDevice.position === cameraPosition) {
// override default device with the one selected by the user in settings
device = preferredDevice
}
const [targetFps, setTargetFps] = useState(60)
@ -172,7 +177,7 @@ export function CameraPage({ navigation }: Props): React.ReactElement {
<ReanimatedCamera
ref={camera}
style={StyleSheet.absoluteFill}
device={preferredDevice ?? device}
device={device}
format={format}
fps={fps}
hdr={enableHdr}

151
package/ios/CameraView+AVAudioSession.swift
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@ -1,151 +0,0 @@
//
// CameraView+AVAudioSession.swift
// VisionCamera
//
// Created by Marc Rousavy on 26.03.21.
// Copyright © 2021 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
/**
Extension for CameraView that sets up the AVAudioSession.
*/
extension CameraView {
/**
Configures the Audio Capture Session with an audio input and audio data output.
*/
final func configureAudioSession() {
ReactLogger.log(level: .info, message: "Configuring Audio Session...")
audioCaptureSession.beginConfiguration()
defer {
audioCaptureSession.commitConfiguration()
}
audioCaptureSession.automaticallyConfiguresApplicationAudioSession = false
let enableAudio = audio?.boolValue == true
// check microphone permission
if enableAudio {
let audioPermissionStatus = AVCaptureDevice.authorizationStatus(for: .audio)
if audioPermissionStatus != .authorized {
invokeOnError(.permission(.microphone))
return
}
}
// Audio Input
do {
if let audioDeviceInput = audioDeviceInput {
audioCaptureSession.removeInput(audioDeviceInput)
self.audioDeviceInput = nil
}
if enableAudio {
ReactLogger.log(level: .info, message: "Adding Audio input...")
guard let audioDevice = AVCaptureDevice.default(for: .audio) else {
invokeOnError(.device(.microphoneUnavailable))
return
}
audioDeviceInput = try AVCaptureDeviceInput(device: audioDevice)
guard audioCaptureSession.canAddInput(audioDeviceInput!) else {
invokeOnError(.parameter(.unsupportedInput(inputDescriptor: "audio-input")))
return
}
audioCaptureSession.addInput(audioDeviceInput!)
}
} catch let error as NSError {
invokeOnError(.device(.microphoneUnavailable), cause: error)
return
}
// Audio Output
if let audioOutput = audioOutput {
audioCaptureSession.removeOutput(audioOutput)
self.audioOutput = nil
}
if enableAudio {
ReactLogger.log(level: .info, message: "Adding Audio Data output...")
audioOutput = AVCaptureAudioDataOutput()
guard audioCaptureSession.canAddOutput(audioOutput!) else {
invokeOnError(.parameter(.unsupportedOutput(outputDescriptor: "audio-output")))
return
}
audioOutput!.setSampleBufferDelegate(self, queue: CameraQueues.audioQueue)
audioCaptureSession.addOutput(audioOutput!)
}
}
/**
Configures the Audio session and activates it. If the session was active it will shortly be deactivated before configuration.
The Audio Session will be configured to allow background music, haptics (vibrations) and system sound playback while recording.
Background audio is allowed to play on speakers or bluetooth speakers.
*/
final func activateAudioSession() {
ReactLogger.log(level: .info, message: "Activating Audio Session...")
do {
try AVAudioSession.sharedInstance().updateCategory(AVAudioSession.Category.playAndRecord,
options: [.mixWithOthers,
.allowBluetoothA2DP,
.defaultToSpeaker,
.allowAirPlay])
if #available(iOS 14.5, *) {
// prevents the audio session from being interrupted by a phone call
try AVAudioSession.sharedInstance().setPrefersNoInterruptionsFromSystemAlerts(true)
}
audioCaptureSession.startRunning()
} catch let error as NSError {
switch error.code {
case 561_017_449:
self.invokeOnError(.session(.audioInUseByOtherApp), cause: error)
default:
self.invokeOnError(.session(.audioSessionFailedToActivate), cause: error)
}
}
}
final func deactivateAudioSession() {
ReactLogger.log(level: .info, message: "Deactivating Audio Session...")
audioCaptureSession.stopRunning()
}
@objc
func audioSessionInterrupted(notification: Notification) {
ReactLogger.log(level: .error, message: "Audio Session Interruption Notification!")
guard let userInfo = notification.userInfo,
let typeValue = userInfo[AVAudioSessionInterruptionTypeKey] as? UInt,
let type = AVAudioSession.InterruptionType(rawValue: typeValue) else {
return
}
// TODO: Add JS-Event for Audio Session interruptions?
switch type {
case .began:
// Something interrupted our Audio Session, stop recording audio.
ReactLogger.log(level: .error, message: "The Audio Session was interrupted!")
case .ended:
ReactLogger.log(level: .info, message: "The Audio Session interruption has ended.")
guard let optionsValue = userInfo[AVAudioSessionInterruptionOptionKey] as? UInt else { return }
let options = AVAudioSession.InterruptionOptions(rawValue: optionsValue)
if options.contains(.shouldResume) {
if isRecording {
CameraQueues.audioQueue.async {
ReactLogger.log(level: .info, message: "Resuming interrupted Audio Session...")
// restart audio session because interruption is over
self.activateAudioSession()
}
}
} else {
ReactLogger.log(level: .error, message: "Cannot resume interrupted Audio Session!")
}
@unknown default:
()
}
}
}

369
package/ios/CameraView+AVCaptureSession.swift
View File

@ -1,369 +0,0 @@
//
// CameraView+AVCaptureSession.swift
// VisionCamera
//
// Created by Marc Rousavy on 26.03.21.
// Copyright © 2021 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
/**
Extension for CameraView that sets up the AVCaptureSession, Device and Format.
*/
extension CameraView {
// pragma MARK: Configure Capture Session
/**
Configures the Capture Session.
*/
final func configureCaptureSession() {
ReactLogger.log(level: .info, message: "Configuring Session...")
isReady = false
#if targetEnvironment(simulator)
invokeOnError(.device(.notAvailableOnSimulator))
return
#endif
guard cameraId != nil else {
invokeOnError(.device(.noDevice))
return
}
let cameraId = self.cameraId! as String
ReactLogger.log(level: .info, message: "Initializing Camera with device \(cameraId)...")
captureSession.beginConfiguration()
defer {
captureSession.commitConfiguration()
}
// pragma MARK: Capture Session Inputs
// Video Input
do {
if let videoDeviceInput = videoDeviceInput {
captureSession.removeInput(videoDeviceInput)
self.videoDeviceInput = nil
}
ReactLogger.log(level: .info, message: "Adding Video input...")
guard let videoDevice = AVCaptureDevice(uniqueID: cameraId) else {
invokeOnError(.device(.invalid))
return
}
videoDeviceInput = try AVCaptureDeviceInput(device: videoDevice)
guard captureSession.canAddInput(videoDeviceInput!) else {
invokeOnError(.parameter(.unsupportedInput(inputDescriptor: "video-input")))
return
}
captureSession.addInput(videoDeviceInput!)
} catch {
invokeOnError(.device(.invalid))
return
}
// pragma MARK: Capture Session Outputs
// Photo Output
if let photoOutput = photoOutput {
captureSession.removeOutput(photoOutput)
self.photoOutput = nil
}
if photo?.boolValue == true {
ReactLogger.log(level: .info, message: "Adding Photo output...")
photoOutput = AVCapturePhotoOutput()
if enableHighQualityPhotos?.boolValue == true {
// TODO: In iOS 16 this will be removed in favor of maxPhotoDimensions.
photoOutput!.isHighResolutionCaptureEnabled = true
if #available(iOS 13.0, *) {
// TODO: Test if this actually does any fusion or if this just calls the captureOutput twice. If the latter, remove it.
photoOutput!.isVirtualDeviceConstituentPhotoDeliveryEnabled = photoOutput!.isVirtualDeviceConstituentPhotoDeliverySupported
photoOutput!.maxPhotoQualityPrioritization = .quality
} else {
photoOutput!.isDualCameraDualPhotoDeliveryEnabled = photoOutput!.isDualCameraDualPhotoDeliverySupported
}
}
// TODO: Enable isResponsiveCaptureEnabled? (iOS 17+)
// TODO: Enable isFastCapturePrioritizationEnabled? (iOS 17+)
if enableDepthData {
photoOutput!.isDepthDataDeliveryEnabled = photoOutput!.isDepthDataDeliverySupported
}
if #available(iOS 12.0, *), enablePortraitEffectsMatteDelivery {
photoOutput!.isPortraitEffectsMatteDeliveryEnabled = photoOutput!.isPortraitEffectsMatteDeliverySupported
}
guard captureSession.canAddOutput(photoOutput!) else {
invokeOnError(.parameter(.unsupportedOutput(outputDescriptor: "photo-output")))
return
}
captureSession.addOutput(photoOutput!)
if videoDeviceInput!.device.position == .front {
photoOutput!.mirror()
}
}
// Video Output + Frame Processor
if let videoOutput = videoOutput {
captureSession.removeOutput(videoOutput)
self.videoOutput = nil
}
if video?.boolValue == true || enableFrameProcessor {
ReactLogger.log(level: .info, message: "Adding Video Data output...")
videoOutput = AVCaptureVideoDataOutput()
guard captureSession.canAddOutput(videoOutput!) else {
invokeOnError(.parameter(.unsupportedOutput(outputDescriptor: "video-output")))
return
}
videoOutput!.setSampleBufferDelegate(self, queue: CameraQueues.videoQueue)
videoOutput!.alwaysDiscardsLateVideoFrames = false
let pixelFormatType = getPixelFormat(videoOutput: videoOutput!)
videoOutput!.videoSettings = [
String(kCVPixelBufferPixelFormatTypeKey): pixelFormatType,
]
captureSession.addOutput(videoOutput!)
}
// Code Scanner
if let codeScannerOptions = codeScannerOptions {
guard let codeScanner = try? CodeScanner(fromJsValue: codeScannerOptions) else {
invokeOnError(.parameter(.invalid(unionName: "codeScanner", receivedValue: codeScannerOptions.description)))
return
}
let metadataOutput = AVCaptureMetadataOutput()
guard captureSession.canAddOutput(metadataOutput) else {
invokeOnError(.codeScanner(.notCompatibleWithOutputs))
return
}
captureSession.addOutput(metadataOutput)
for codeType in codeScanner.codeTypes {
// swiftlint:disable:next for_where
if !metadataOutput.availableMetadataObjectTypes.contains(codeType) {
invokeOnError(.codeScanner(.codeTypeNotSupported(codeType: codeType.descriptor)))
return
}
}
metadataOutput.setMetadataObjectsDelegate(self, queue: CameraQueues.codeScannerQueue)
metadataOutput.metadataObjectTypes = codeScanner.codeTypes
if let rectOfInterest = codeScanner.regionOfInterest {
metadataOutput.rectOfInterest = rectOfInterest
}
}
if outputOrientation != .portrait {
updateOrientation()
}
invokeOnInitialized()
isReady = true
ReactLogger.log(level: .info, message: "Session successfully configured!")
}
/**
Returns the pixel format that should be used for the AVCaptureVideoDataOutput.
If HDR is enabled, this will return YUV 4:2:0 10-bit.
If HDR is disabled, this will return whatever the user specified as a pixelFormat, or the most efficient format as a fallback.
*/
private func getPixelFormat(videoOutput: AVCaptureVideoDataOutput) -> OSType {
// as per documentation, the first value is always the most efficient format
var defaultFormat = videoOutput.availableVideoPixelFormatTypes.first!
if enableBufferCompression {
// use compressed format instead if we enabled buffer compression
if defaultFormat == kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange &&
videoOutput.availableVideoPixelFormatTypes.contains(kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarVideoRange) {
// YUV 4:2:0 8-bit (limited video colors; compressed)
defaultFormat = kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarVideoRange
}
if defaultFormat == kCVPixelFormatType_420YpCbCr8BiPlanarFullRange &&
videoOutput.availableVideoPixelFormatTypes.contains(kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarFullRange) {
// YUV 4:2:0 8-bit (full video colors; compressed)
defaultFormat = kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarFullRange
}
}
// If the user enabled HDR, we can only use the YUV 4:2:0 10-bit pixel format.
if hdr == true {
guard pixelFormat == nil || pixelFormat == "yuv" else {
invokeOnError(.format(.incompatiblePixelFormatWithHDR))
return defaultFormat
}
var targetFormats = [kCVPixelFormatType_420YpCbCr10BiPlanarFullRange,
kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange]
if enableBufferCompression {
// If we enable buffer compression, try to use a lossless compressed YUV format first, otherwise fall back to the others.
targetFormats.insert(kCVPixelFormatType_Lossless_420YpCbCr10PackedBiPlanarVideoRange, at: 0)
}
// Find the best matching format
guard let format = videoOutput.findPixelFormat(firstOf: targetFormats) else {
invokeOnError(.format(.invalidHdr))
return defaultFormat
}
// YUV 4:2:0 10-bit (compressed/uncompressed)
return format
}
// If the user didn't specify a custom pixelFormat, just return the default one.
guard let pixelFormat = pixelFormat else {
return defaultFormat
}
// If we don't use HDR, we can use any other custom pixel format.
switch pixelFormat {
case "yuv":
// YUV 4:2:0 8-bit (full/limited video colors; uncompressed)
var targetFormats = [kCVPixelFormatType_420YpCbCr8BiPlanarFullRange,
kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange]
if enableBufferCompression {
// YUV 4:2:0 8-bit (full/limited video colors; compressed)
targetFormats.insert(kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarVideoRange, at: 0)
targetFormats.insert(kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarFullRange, at: 0)
}
guard let format = videoOutput.findPixelFormat(firstOf: targetFormats) else {
invokeOnError(.device(.pixelFormatNotSupported))
return defaultFormat
}
return format
case "rgb":
// RGBA 8-bit (uncompressed)
var targetFormats = [kCVPixelFormatType_32BGRA]
if enableBufferCompression {
// RGBA 8-bit (compressed)
targetFormats.insert(kCVPixelFormatType_Lossless_32BGRA, at: 0)
}
guard let format = videoOutput.findPixelFormat(firstOf: targetFormats) else {
invokeOnError(.device(.pixelFormatNotSupported))
return defaultFormat
}
return format
case "native":
return defaultFormat
default:
invokeOnError(.parameter(.invalid(unionName: "pixelFormat", receivedValue: pixelFormat as String)))
return defaultFormat
}
}
// pragma MARK: Configure Device
/**
Configures the Video Device with the given FPS and HDR modes.
*/
final func configureDevice() {
ReactLogger.log(level: .info, message: "Configuring Device...")
guard let device = videoDeviceInput?.device else {
invokeOnError(.session(.cameraNotReady))
return
}
do {
try device.lockForConfiguration()
// Configure FPS
if let fps = fps?.int32Value {
let supportsGivenFps = device.activeFormat.videoSupportedFrameRateRanges.contains { range in
return range.includes(fps: Double(fps))
}
if !supportsGivenFps {
invokeOnError(.format(.invalidFps(fps: Int(fps))))
return
}
let duration = CMTimeMake(value: 1, timescale: fps)
device.activeVideoMinFrameDuration = duration
device.activeVideoMaxFrameDuration = duration
} else {
device.activeVideoMinFrameDuration = CMTime.invalid
device.activeVideoMaxFrameDuration = CMTime.invalid
}
// Configure Low-Light-Boost
if lowLightBoost != nil {
if lowLightBoost == true && !device.isLowLightBoostSupported {
invokeOnError(.device(.lowLightBoostNotSupported))
return
}
device.automaticallyEnablesLowLightBoostWhenAvailable = lowLightBoost!.boolValue
}
device.unlockForConfiguration()
ReactLogger.log(level: .info, message: "Device successfully configured!")
} catch let error as NSError {
invokeOnError(.device(.configureError), cause: error)
return
}
}
// pragma MARK: Configure Format
/**
Configures the Video Device to find the best matching Format.
*/
final func configureFormat() {
ReactLogger.log(level: .info, message: "Configuring Format...")
guard let jsFormat = format else {
// JS Format was null. Ignore it, use default.
return
}
guard let device = videoDeviceInput?.device else {
invokeOnError(.session(.cameraNotReady))
return
}
if device.activeFormat.isEqualTo(jsFormat: jsFormat) {
ReactLogger.log(level: .info, message: "Already selected active format.")
return
}
// get matching format
let format = device.formats.first { $0.isEqualTo(jsFormat: jsFormat) }
guard let format else {
invokeOnError(.format(.invalidFormat))
return
}
do {
try device.lockForConfiguration()
defer {
device.unlockForConfiguration()
}
let shouldReconfigurePhotoOutput = device.activeFormat.photoDimensions.toCGSize() != format.photoDimensions.toCGSize()
device.activeFormat = format
// The Photo Output uses the smallest available Dimension by default. We need to configure it for the maximum here
if shouldReconfigurePhotoOutput, #available(iOS 16.0, *) {
if let photoOutput = photoOutput {
photoOutput.maxPhotoDimensions = format.photoDimensions
}
}
ReactLogger.log(level: .info, message: "Format successfully configured!")
} catch let error as NSError {
invokeOnError(.device(.configureError), cause: error)
return
}
}
// pragma MARK: Notifications/Interruptions
@objc
func sessionRuntimeError(notification: Notification) {
ReactLogger.log(level: .error, message: "Unexpected Camera Runtime Error occured!")
guard let error = notification.userInfo?[AVCaptureSessionErrorKey] as? AVError else {
return
}
invokeOnError(.unknown(message: error._nsError.description), cause: error._nsError)
if isActive {
// restart capture session after an error occured
CameraQueues.cameraQueue.async {
self.captureSession.startRunning()
}
}
}
}

45
package/ios/CameraView+CodeScanner.swift
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@ -1,45 +0,0 @@
//
// CameraView+CodeScanner.swift
// VisionCamera
//
// Created by Marc Rousavy on 03.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension CameraView: AVCaptureMetadataOutputObjectsDelegate {
public func metadataOutput(_: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from _: AVCaptureConnection) {
guard let onCodeScanned = onCodeScanned else {
return
}
guard !metadataObjects.isEmpty else {
return
}
// Map codes to JS values
let codes = metadataObjects.map { object in
var value: String?
if let code = object as? AVMetadataMachineReadableCodeObject {
value = code.stringValue
}
let frame = previewView.layerRectConverted(fromMetadataOutputRect: object.bounds)
return [
"type": object.type.descriptor,
"value": value as Any,
"frame": [
"x": frame.origin.x,
"y": frame.origin.y,
"width": frame.size.width,
"height": frame.size.height,
],
]
}
// Call JS event
onCodeScanned([
"codes": codes,
])
}
}

84
package/ios/CameraView+Focus.swift
View File

@ -1,93 +1,19 @@
//
// CameraView+Focus.swift
// mrousavy
// VisionCamera
//
// Created by Marc Rousavy on 19.02.21.
// Copyright © 2021 mrousavy. All rights reserved.
// Created by Marc Rousavy on 12.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension CameraView {
private func convertPreviewCoordinatesToCameraCoordinates(_ point: CGPoint) -> CGPoint {
return previewView.captureDevicePointConverted(fromLayerPoint: point)
}
func focus(point: CGPoint, promise: Promise) {
withPromise(promise) {
guard let device = self.videoDeviceInput?.device else {
throw CameraError.session(SessionError.cameraNotReady)
}
if !device.isFocusPointOfInterestSupported {
throw CameraError.device(DeviceError.focusNotSupported)
}
// in {0..1} system
let normalizedPoint = convertPreviewCoordinatesToCameraCoordinates(point)
do {
try device.lockForConfiguration()
defer {
device.unlockForConfiguration()
}
// Set Focus
if device.isFocusPointOfInterestSupported {
device.focusPointOfInterest = normalizedPoint
device.focusMode = .autoFocus
}
// Set Exposure
if device.isExposurePointOfInterestSupported {
device.exposurePointOfInterest = normalizedPoint
device.exposureMode = .autoExpose
}
// Remove any existing listeners
NotificationCenter.default.removeObserver(self,
name: NSNotification.Name.AVCaptureDeviceSubjectAreaDidChange,
object: nil)
// Listen for focus completion
device.isSubjectAreaChangeMonitoringEnabled = true
NotificationCenter.default.addObserver(self,
selector: #selector(subjectAreaDidChange),
name: NSNotification.Name.AVCaptureDeviceSubjectAreaDidChange,
object: nil)
try cameraSession.focus(point: point)
return nil
} catch {
throw CameraError.device(DeviceError.configureError)
}
}
}
@objc
func subjectAreaDidChange(notification _: NSNotification) {
guard let device = videoDeviceInput?.device else {
invokeOnError(.session(.cameraNotReady))
return
}
do {
try device.lockForConfiguration()
defer {
device.unlockForConfiguration()
}
// Reset Focus to continuous/auto
if device.isFocusPointOfInterestSupported {
device.focusMode = .continuousAutoFocus
}
// Reset Exposure to continuous/auto
if device.isExposurePointOfInterestSupported {
device.exposureMode = .continuousAutoExposure
}
// Disable listeners
device.isSubjectAreaChangeMonitoringEnabled = false
} catch {
invokeOnError(.device(.configureError))
}
}
}

45
package/ios/CameraView+Orientation.swift
View File

@ -1,45 +0,0 @@
//
// CameraView+Orientation.swift
// VisionCamera
//
// Created by Marc Rousavy on 04.01.22.
// Copyright © 2022 mrousavy. All rights reserved.
//
import Foundation
import UIKit
extension CameraView {
/// Orientation of the input connection (preview)
private var inputOrientation: UIInterfaceOrientation {
return .portrait
}
// Orientation of the output connections (photo, video, frame processor)
var outputOrientation: UIInterfaceOrientation {
if let userOrientation = orientation as String?,
let parsedOrientation = try? UIInterfaceOrientation(withString: userOrientation) {
// user is overriding output orientation
return parsedOrientation
} else {
// use same as input orientation
return inputOrientation
}
}
func updateOrientation() {
// Updates the Orientation for all rotable
let isMirrored = videoDeviceInput?.device.position == .front
let connectionOrientation = outputOrientation
captureSession.outputs.forEach { output in
output.connections.forEach { connection in
if connection.isVideoMirroringSupported {
connection.automaticallyAdjustsVideoMirroring = false
connection.isVideoMirrored = isMirrored
}
connection.setInterfaceOrientation(connectionOrientation)
}
}
}
}

270
package/ios/CameraView+RecordVideo.swift
View File

@ -11,268 +11,42 @@ import AVFoundation
// MARK: - CameraView + AVCaptureVideoDataOutputSampleBufferDelegate, AVCaptureAudioDataOutputSampleBufferDelegate
extension CameraView: AVCaptureVideoDataOutputSampleBufferDelegate, AVCaptureAudioDataOutputSampleBufferDelegate {
/**
Starts a video + audio recording with a custom Asset Writer.
*/
func startRecording(options: NSDictionary, callback jsCallbackFunc: @escaping RCTResponseSenderBlock) {
CameraQueues.cameraQueue.async {
ReactLogger.log(level: .info, message: "Starting Video recording...")
let callback = Callback(jsCallbackFunc)
func startRecording(options: NSDictionary, callback jsCallback: @escaping RCTResponseSenderBlock) {
// Type-safety
let callback = Callback(jsCallback)
var fileType = AVFileType.mov
if let fileTypeOption = options["fileType"] as? String {
guard let parsed = try? AVFileType(withString: fileTypeOption) else {
callback.reject(error: .parameter(.invalid(unionName: "fileType", receivedValue: fileTypeOption)))
return
}
fileType = parsed
}
let errorPointer = ErrorPointer(nilLiteral: ())
let fileExtension = fileType.descriptor ?? "mov"
guard let tempFilePath = RCTTempFilePath(fileExtension, errorPointer) else {
callback.reject(error: .capture(.createTempFileError), cause: errorPointer?.pointee)
return
}
ReactLogger.log(level: .info, message: "File path: \(tempFilePath)")
let tempURL = URL(string: "file://\(tempFilePath)")!
if let flashMode = options["flash"] as? String {
// use the torch as the video's flash
self.setTorchMode(flashMode)
}
guard let videoOutput = self.videoOutput else {
if self.video?.boolValue == true {
callback.reject(error: .session(.cameraNotReady))
return
} else {
callback.reject(error: .capture(.videoNotEnabled))
return
}
}
guard let videoInput = self.videoDeviceInput else {
callback.reject(error: .session(.cameraNotReady))
return
}
// TODO: The startRecording() func cannot be async because RN doesn't allow
// both a callback and a Promise in a single function. Wait for TurboModules?
// This means that any errors that occur in this function have to be delegated through
// the callback, but I'd prefer for them to throw for the original function instead.
let enableAudio = self.audio?.boolValue == true
let onFinish = { (recordingSession: RecordingSession, status: AVAssetWriter.Status, error: Error?) in
defer {
if enableAudio {
CameraQueues.audioQueue.async {
self.deactivateAudioSession()
}
}
if options["flash"] != nil {
// Set torch mode back to what it was before if we used it for the video flash.
self.setTorchMode(self.torch)
}
}
self.recordingSession = nil
self.isRecording = false
ReactLogger.log(level: .info, message: "RecordingSession finished with status \(status.descriptor).")
if let error = error as NSError? {
if error.domain == "capture/aborted" {
callback.reject(error: .capture(.aborted), cause: error)
} else {
callback.reject(error: .capture(.unknown(message: "An unknown recording error occured! \(error.description)")), cause: error)
}
} else {
if status == .completed {
callback.resolve([
"path": recordingSession.url.absoluteString,
"duration": recordingSession.duration,
])
} else {
callback.reject(error: .unknown(message: "AVAssetWriter completed with status: \(status.descriptor)"))
}
}
}
let recordingSession: RecordingSession
do {
recordingSession = try RecordingSession(url: tempURL,
fileType: fileType,
completion: onFinish)
} catch let error as NSError {
callback.reject(error: .capture(.createRecorderError(message: nil)), cause: error)
return
}
self.recordingSession = recordingSession
let options = try RecordVideoOptions(fromJSValue: options)
var videoCodec: AVVideoCodecType?
if let codecString = options["videoCodec"] as? String {
videoCodec = AVVideoCodecType(withString: codecString)
// Start Recording with success and error callbacks
cameraSession.startRecording(
options: options,
onVideoRecorded: { video in
callback.resolve(video.toJSValue())
},
onError: { error in
callback.reject(error: error)
}
// Init Video
guard var videoSettings = self.recommendedVideoSettings(videoOutput: videoOutput, fileType: fileType, videoCodec: videoCodec),
!videoSettings.isEmpty else {
callback.reject(error: .capture(.createRecorderError(message: "Failed to get video settings!")))
return
)
} catch {
// Some error occured while initializing VideoSettings
if let error = error as? CameraError {
callback.reject(error: error)
} else {
callback.reject(error: .capture(.unknown(message: error.localizedDescription)), cause: error as NSError)
}
// Custom Video Bit Rate (Mbps -> bps)
if let videoBitRate = options["videoBitRate"] as? NSNumber {
let bitsPerSecond = videoBitRate.doubleValue * 1_000_000
videoSettings[AVVideoCompressionPropertiesKey] = [
AVVideoAverageBitRateKey: NSNumber(value: bitsPerSecond),
]
}
// get pixel format (420f, 420v, x420)
let pixelFormat = CMFormatDescriptionGetMediaSubType(videoInput.device.activeFormat.formatDescription)
recordingSession.initializeVideoWriter(withSettings: videoSettings,
pixelFormat: pixelFormat)
// Init Audio (optional)
if enableAudio {
// Activate Audio Session asynchronously
CameraQueues.audioQueue.async {
self.activateAudioSession()
}
if let audioOutput = self.audioOutput,
let audioSettings = audioOutput.recommendedAudioSettingsForAssetWriter(writingTo: fileType) {
recordingSession.initializeAudioWriter(withSettings: audioSettings)
}
}
// start recording session with or without audio.
do {
try recordingSession.startAssetWriter()
} catch let error as NSError {
callback.reject(error: .capture(.createRecorderError(message: "RecordingSession failed to start asset writer.")), cause: error)
return
}
self.isRecording = true
}
}
func stopRecording(promise: Promise) {
CameraQueues.cameraQueue.async {
self.isRecording = false
withPromise(promise) {
guard let recordingSession = self.recordingSession else {
throw CameraError.capture(.noRecordingInProgress)
}
recordingSession.finish()
return nil
}
}
cameraSession.stopRecording(promise: promise)
}
func pauseRecording(promise: Promise) {
CameraQueues.cameraQueue.async {
withPromise(promise) {
guard self.recordingSession != nil else {
// there's no active recording!
throw CameraError.capture(.noRecordingInProgress)
}
self.isRecording = false
return nil
}
}
cameraSession.pauseRecording(promise: promise)
}
func resumeRecording(promise: Promise) {
CameraQueues.cameraQueue.async {
withPromise(promise) {
guard self.recordingSession != nil else {
// there's no active recording!
throw CameraError.capture(.noRecordingInProgress)
}
self.isRecording = true
return nil
}
}
}
public final func captureOutput(_ captureOutput: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from _: AVCaptureConnection) {
#if VISION_CAMERA_ENABLE_FRAME_PROCESSORS
if captureOutput is AVCaptureVideoDataOutput {
if let frameProcessor = frameProcessor {
// Call Frame Processor
let frame = Frame(buffer: sampleBuffer, orientation: bufferOrientation)
frameProcessor.call(frame)
}
}
#endif
// Record Video Frame/Audio Sample to File
if isRecording {
guard let recordingSession = recordingSession else {
invokeOnError(.capture(.unknown(message: "isRecording was true but the RecordingSession was null!")))
return
}
switch captureOutput {
case is AVCaptureVideoDataOutput:
recordingSession.appendBuffer(sampleBuffer, type: .video, timestamp: CMSampleBufferGetPresentationTimeStamp(sampleBuffer))
case is AVCaptureAudioDataOutput:
let timestamp = CMSyncConvertTime(CMSampleBufferGetPresentationTimeStamp(sampleBuffer),
from: audioCaptureSession.masterClock ?? CMClockGetHostTimeClock(),
to: captureSession.masterClock ?? CMClockGetHostTimeClock())
recordingSession.appendBuffer(sampleBuffer, type: .audio, timestamp: timestamp)
default:
break
}
}
#if DEBUG
if captureOutput is AVCaptureVideoDataOutput {
// Update FPS Graph per Frame
if let fpsGraph = fpsGraph {
DispatchQueue.main.async {
fpsGraph.onTick(CACurrentMediaTime())
}
}
}
#endif
}
private func recommendedVideoSettings(videoOutput: AVCaptureVideoDataOutput,
fileType: AVFileType,
videoCodec: AVVideoCodecType?) -> [String: Any]? {
if videoCodec != nil {
return videoOutput.recommendedVideoSettings(forVideoCodecType: videoCodec!, assetWriterOutputFileType: fileType)
} else {
return videoOutput.recommendedVideoSettingsForAssetWriter(writingTo: fileType)
}
}
/**
Gets the orientation of the CameraView's images (CMSampleBuffers).
*/
private var bufferOrientation: UIImage.Orientation {
guard let cameraPosition = videoDeviceInput?.device.position else {
return .up
}
switch outputOrientation {
case .portrait:
return cameraPosition == .front ? .leftMirrored : .right
case .landscapeLeft:
return cameraPosition == .front ? .downMirrored : .up
case .portraitUpsideDown:
return cameraPosition == .front ? .rightMirrored : .left
case .landscapeRight:
return cameraPosition == .front ? .upMirrored : .down
case .unknown:
return .up
@unknown default:
return .up
}
cameraSession.resumeRecording(promise: promise)
}
}

79
package/ios/CameraView+TakePhoto.swift
View File

@ -10,83 +10,6 @@ import AVFoundation
extension CameraView {
func takePhoto(options: NSDictionary, promise: Promise) {
CameraQueues.cameraQueue.async {
guard let photoOutput = self.photoOutput,
let videoDeviceInput = self.videoDeviceInput else {
if self.photo?.boolValue == true {
promise.reject(error: .session(.cameraNotReady))
return
} else {
promise.reject(error: .capture(.photoNotEnabled))
return
}
}
ReactLogger.log(level: .info, message: "Capturing photo...")
// Create photo settings
let photoSettings = AVCapturePhotoSettings()
// default, overridable settings if high quality capture was enabled
if self.enableHighQualityPhotos?.boolValue == true {
// TODO: On iOS 16+ this will be removed in favor of maxPhotoDimensions.
photoSettings.isHighResolutionPhotoEnabled = true
if #available(iOS 13.0, *) {
photoSettings.photoQualityPrioritization = .quality
}
}
// flash
if videoDeviceInput.device.isFlashAvailable, let flash = options["flash"] as? String {
guard let flashMode = AVCaptureDevice.FlashMode(withString: flash) else {
promise.reject(error: .parameter(.invalid(unionName: "FlashMode", receivedValue: flash)))
return
}
photoSettings.flashMode = flashMode
}
// shutter sound
let enableShutterSound = options["enableShutterSound"] as? Bool ?? true
// depth data
photoSettings.isDepthDataDeliveryEnabled = photoOutput.isDepthDataDeliveryEnabled
if #available(iOS 12.0, *) {
photoSettings.isPortraitEffectsMatteDeliveryEnabled = photoOutput.isPortraitEffectsMatteDeliveryEnabled
}
// quality prioritization
if #available(iOS 13.0, *), let qualityPrioritization = options["qualityPrioritization"] as? String {
guard let photoQualityPrioritization = AVCapturePhotoOutput.QualityPrioritization(withString: qualityPrioritization) else {
promise.reject(error: .parameter(.invalid(unionName: "QualityPrioritization", receivedValue: qualityPrioritization)))
return
}
photoSettings.photoQualityPrioritization = photoQualityPrioritization
}
// photo size is always the one selected in the format
if #available(iOS 16.0, *) {
photoSettings.maxPhotoDimensions = photoOutput.maxPhotoDimensions
}
// red-eye reduction
if #available(iOS 12.0, *), let autoRedEyeReduction = options["enableAutoRedEyeReduction"] as? Bool {
photoSettings.isAutoRedEyeReductionEnabled = autoRedEyeReduction
}
// stabilization
if let enableAutoStabilization = options["enableAutoStabilization"] as? Bool {
photoSettings.isAutoStillImageStabilizationEnabled = enableAutoStabilization
}
// distortion correction
if #available(iOS 14.1, *), let enableAutoDistortionCorrection = options["enableAutoDistortionCorrection"] as? Bool {
photoSettings.isAutoContentAwareDistortionCorrectionEnabled = enableAutoDistortionCorrection
}
photoOutput.capturePhoto(with: photoSettings, delegate: PhotoCaptureDelegate(promise: promise, enableShutterSound: enableShutterSound))
// Assume that `takePhoto` is always called with the same parameters, so prepare the next call too.
photoOutput.setPreparedPhotoSettingsArray([photoSettings], completionHandler: nil)
}
cameraSession.takePhoto(options: options, promise: promise)
}
}

51
package/ios/CameraView+Torch.swift
View File

@ -1,51 +0,0 @@
//
// CameraView+Torch.swift
// VisionCamera
//
// Created by Marc Rousavy on 20.07.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension CameraView {
final func setTorchMode(_ torchMode: String) {
guard let device = videoDeviceInput?.device else {
invokeOnError(.session(.cameraNotReady))
return
}
guard var torchMode = AVCaptureDevice.TorchMode(withString: torchMode) else {
invokeOnError(.parameter(.invalid(unionName: "TorchMode", receivedValue: torch)))
return
}
if !captureSession.isRunning {
torchMode = .off
}
if device.torchMode == torchMode {
// no need to run the whole lock/unlock bs
return
}
if !device.hasTorch || !device.isTorchAvailable {
if torchMode == .off {
// ignore it, when it's off and not supported, it's off.
return
} else {
// torch mode is .auto or .on, but no torch is available.
invokeOnError(.device(.flashUnavailable))
return
}
}
do {
try device.lockForConfiguration()
device.torchMode = torchMode
if torchMode == .on {
try device.setTorchModeOn(level: 1.0)
}
device.unlockForConfiguration()
} catch let error as NSError {
invokeOnError(.device(.configureError), cause: error)
return
}
}
}

44
package/ios/CameraView+Zoom.swift
View File

@ -7,34 +7,20 @@
//
import Foundation
import UIKit
extension CameraView {
var minAvailableZoom: CGFloat {
return videoDeviceInput?.device.minAvailableVideoZoomFactor ?? 1
}
var maxAvailableZoom: CGFloat {
return videoDeviceInput?.device.activeFormat.videoMaxZoomFactor ?? 1
}
@objc
final func onPinch(_ gesture: UIPinchGestureRecognizer) {
guard let device = videoDeviceInput?.device else {
return
}
let scale = max(min(gesture.scale * pinchScaleOffset, device.activeFormat.videoMaxZoomFactor), CGFloat(1.0))
let scale = max(min(gesture.scale * pinchScaleOffset, cameraSession.maxZoom), CGFloat(1.0))
if gesture.state == .ended {
pinchScaleOffset = scale
return
}
do {
try device.lockForConfiguration()
device.videoZoomFactor = scale
device.unlockForConfiguration()
} catch {
invokeOnError(.device(.configureError))
// Update zoom on Camera
cameraSession.configure { configuration in
configuration.zoom = scale
}
}
@ -50,24 +36,4 @@ extension CameraView {
self.pinchGestureRecognizer = nil
}
}
@objc
final func zoom(factor: CGFloat, animated: Bool) {
guard let device = videoDeviceInput?.device else {
return
}
do {
try device.lockForConfiguration()
let clamped = max(min(factor, device.activeFormat.videoMaxZoomFactor), CGFloat(1.0))
if animated {
device.ramp(toVideoZoomFactor: clamped, withRate: 1)
} else {
device.videoZoomFactor = clamped
}
device.unlockForConfiguration()
} catch {
invokeOnError(.device(.configureError))
}
}
}

313
package/ios/CameraView.swift
View File

@ -10,50 +10,36 @@ import AVFoundation
import Foundation
import UIKit
//
// TODOs for the CameraView which are currently too hard to implement either because of AVFoundation's limitations, or my brain capacity
//
// CameraView+RecordVideo
// TODO: Better startRecording()/stopRecording() (promise + callback, wait for TurboModules/JSI)
//
// CameraView+TakePhoto
// TODO: Photo HDR
private let propsThatRequireReconfiguration = ["cameraId",
"enableDepthData",
"enableHighQualityPhotos",
"enablePortraitEffectsMatteDelivery",
"photo",
"video",
"enableFrameProcessor",
"hdr",
"pixelFormat",
"codeScannerOptions"]
private let propsThatRequireDeviceReconfiguration = ["fps",
"lowLightBoost"]
// MARK: - CameraView
public final class CameraView: UIView {
public final class CameraView: UIView, CameraSessionDelegate {
// pragma MARK: React Properties
// props that require reconfiguring
@objc var cameraId: NSString?
@objc var enableDepthData = false
@objc var enableHighQualityPhotos: NSNumber? // nullable bool
@objc var enableHighQualityPhotos = false
@objc var enablePortraitEffectsMatteDelivery = false
@objc var enableBufferCompression = false
// use cases
@objc var photo: NSNumber? // nullable bool
@objc var video: NSNumber? // nullable bool
@objc var audio: NSNumber? // nullable bool
@objc var photo = false
@objc var video = false
@objc var audio = false
@objc var enableFrameProcessor = false
@objc var codeScannerOptions: NSDictionary?
@objc var pixelFormat: NSString?
// props that require format reconfiguring
@objc var format: NSDictionary?
@objc var fps: NSNumber?
@objc var hdr: NSNumber? // nullable bool
@objc var lowLightBoost: NSNumber? // nullable bool
@objc var hdr = false
@objc var lowLightBoost = false
@objc var orientation: NSString?
// other props
@objc var isActive = false
@ -63,7 +49,8 @@ public final class CameraView: UIView {
@objc var videoStabilizationMode: NSString?
@objc var resizeMode: NSString = "cover" {
didSet {
previewView.resizeMode = ResizeMode(fromTypeScriptUnion: resizeMode as String)
let parsed = try? ResizeMode(jsValue: resizeMode as String)
previewView.resizeMode = parsed ?? .cover
}
}
@ -84,20 +71,9 @@ public final class CameraView: UIView {
}
// pragma MARK: Internal Properties
var cameraSession: CameraSession
var isMounted = false
var isReady = false
// Capture Session
let captureSession = AVCaptureSession()
let audioCaptureSession = AVCaptureSession()
// Inputs & Outputs
var videoDeviceInput: AVCaptureDeviceInput?
var audioDeviceInput: AVCaptureDeviceInput?
var photoOutput: AVCapturePhotoOutput?
var videoOutput: AVCaptureVideoDataOutput?
var audioOutput: AVCaptureAudioDataOutput?
// CameraView+RecordView (+ Frame Processor)
var isRecording = false
var recordingSession: RecordingSession?
#if VISION_CAMERA_ENABLE_FRAME_PROCESSORS
@objc public var frameProcessor: FrameProcessor?
#endif
@ -110,30 +86,16 @@ public final class CameraView: UIView {
var fpsGraph: RCTFPSGraph?
#endif
/// Returns whether the AVCaptureSession is currently running (reflected by isActive)
var isRunning: Bool {
return captureSession.isRunning
}
// pragma MARK: Setup
override public init(frame: CGRect) {
previewView = PreviewView(frame: frame, session: captureSession)
// Create CameraSession
cameraSession = CameraSession()
previewView = cameraSession.createPreviewView(frame: frame)
super.init(frame: frame)
cameraSession.delegate = self
addSubview(previewView)
NotificationCenter.default.addObserver(self,
selector: #selector(sessionRuntimeError),
name: .AVCaptureSessionRuntimeError,
object: captureSession)
NotificationCenter.default.addObserver(self,
selector: #selector(sessionRuntimeError),
name: .AVCaptureSessionRuntimeError,
object: audioCaptureSession)
NotificationCenter.default.addObserver(self,
selector: #selector(audioSessionInterrupted),
name: AVAudioSession.interruptionNotification,
object: AVAudioSession.sharedInstance)
}
@available(*, unavailable)
@ -141,18 +103,6 @@ public final class CameraView: UIView {
fatalError("init(coder:) is not implemented.")
}
deinit {
NotificationCenter.default.removeObserver(self,
name: .AVCaptureSessionRuntimeError,
object: captureSession)
NotificationCenter.default.removeObserver(self,
name: .AVCaptureSessionRuntimeError,
object: audioCaptureSession)
NotificationCenter.default.removeObserver(self,
name: AVAudioSession.interruptionNotification,
object: AVAudioSession.sharedInstance)
}
override public func willMove(toSuperview newSuperview: UIView?) {
super.willMove(toSuperview: newSuperview)
@ -169,89 +119,111 @@ public final class CameraView: UIView {
previewView.bounds = bounds
}
func getPixelFormat() -> PixelFormat {
// TODO: Use ObjC RCT enum parser for this
if let pixelFormat = pixelFormat as? String {
do {
return try PixelFormat(jsValue: pixelFormat)
} catch {
if let error = error as? CameraError {
onError(error)
} else {
onError(.unknown(message: error.localizedDescription, cause: error as NSError))
}
}
}
return .native
}
func getTorch() -> Torch {
// TODO: Use ObjC RCT enum parser for this
if let torch = try? Torch(jsValue: torch) {
return torch
}
return .off
}
// pragma MARK: Props updating
override public final func didSetProps(_ changedProps: [String]!) {
ReactLogger.log(level: .info, message: "Updating \(changedProps.count) prop(s)...")
let shouldReconfigure = changedProps.contains { propsThatRequireReconfiguration.contains($0) }
let shouldReconfigureFormat = shouldReconfigure || changedProps.contains("format")
let shouldReconfigureDevice = shouldReconfigureFormat || changedProps.contains { propsThatRequireDeviceReconfiguration.contains($0) }
let shouldReconfigureAudioSession = changedProps.contains("audio")
ReactLogger.log(level: .info, message: "Updating \(changedProps.count) props: [\(changedProps.joined(separator: ", "))]")
let willReconfigure = shouldReconfigure || shouldReconfigureFormat || shouldReconfigureDevice
cameraSession.configure { config in
// Input Camera Device
config.cameraId = cameraId as? String
let shouldCheckActive = willReconfigure || changedProps.contains("isActive") || captureSession.isRunning != isActive
let shouldUpdateTorch = willReconfigure || changedProps.contains("torch") || shouldCheckActive
let shouldUpdateZoom = willReconfigure || changedProps.contains("zoom") || shouldCheckActive
let shouldUpdateVideoStabilization = willReconfigure || changedProps.contains("videoStabilizationMode")
let shouldUpdateOrientation = willReconfigure || changedProps.contains("orientation")
// Photo
if photo {
config.photo = .enabled(config: CameraConfiguration.Photo(enableHighQualityPhotos: enableHighQualityPhotos,
enableDepthData: enableDepthData,
enablePortraitEffectsMatte: enablePortraitEffectsMatteDelivery))
} else {
config.photo = .disabled
}
// Video/Frame Processor
if video || enableFrameProcessor {
config.video = .enabled(config: CameraConfiguration.Video(pixelFormat: getPixelFormat(),
enableBufferCompression: enableBufferCompression,
enableHdr: hdr,
enableFrameProcessor: enableFrameProcessor))
} else {
config.video = .disabled
}
// Audio
if audio {
config.audio = .enabled(config: CameraConfiguration.Audio())
} else {
config.audio = .disabled
}
// Code Scanner
if let codeScannerOptions {
let codeScanner = try CodeScanner(fromJsValue: codeScannerOptions)
config.codeScanner = .enabled(config: codeScanner)
} else {
config.codeScanner = .disabled
}
// Orientation
if let jsOrientation = orientation as? String {
let orientation = try Orientation(jsValue: jsOrientation)
config.orientation = orientation
} else {
config.orientation = .portrait
}
// Format
if let jsFormat = format {
let format = try CameraDeviceFormat(jsValue: jsFormat)
config.format = format
} else {
config.format = nil
}
// Side-Props
config.fps = fps?.int32Value
config.enableLowLightBoost = lowLightBoost
config.torch = getTorch()
// Zoom
config.zoom = zoom.doubleValue
// isActive
config.isActive = isActive
}
// Store `zoom` offset for native pinch-gesture
if changedProps.contains("zoom") {
pinchScaleOffset = zoom.doubleValue
}
// Set up Debug FPS Graph
if changedProps.contains("enableFpsGraph") {
DispatchQueue.main.async {
self.setupFpsGraph()
}
}
if shouldReconfigure ||
shouldReconfigureAudioSession ||
shouldCheckActive ||
shouldUpdateTorch ||
shouldUpdateZoom ||
shouldReconfigureFormat ||
shouldReconfigureDevice ||
shouldUpdateVideoStabilization ||
shouldUpdateOrientation {
CameraQueues.cameraQueue.async {
// Video Configuration
if shouldReconfigure {
self.configureCaptureSession()
}
if shouldReconfigureFormat {
self.configureFormat()
}
if shouldReconfigureDevice {
self.configureDevice()
}
if shouldUpdateVideoStabilization, let videoStabilizationMode = self.videoStabilizationMode as String? {
self.captureSession.setVideoStabilizationMode(videoStabilizationMode)
}
if shouldUpdateZoom {
let zoomClamped = max(min(CGFloat(self.zoom.doubleValue), self.maxAvailableZoom), self.minAvailableZoom)
self.zoom(factor: zoomClamped, animated: false)
self.pinchScaleOffset = zoomClamped
}
if shouldCheckActive && self.captureSession.isRunning != self.isActive {
if self.isActive {
ReactLogger.log(level: .info, message: "Starting Session...")
self.captureSession.startRunning()
ReactLogger.log(level: .info, message: "Started Session!")
} else {
ReactLogger.log(level: .info, message: "Stopping Session...")
self.captureSession.stopRunning()
ReactLogger.log(level: .info, message: "Stopped Session!")
}
}
if shouldUpdateOrientation {
self.updateOrientation()
}
// This is a wack workaround, but if I immediately set torch mode after `startRunning()`, the session isn't quite ready yet and will ignore torch.
if shouldUpdateTorch {
CameraQueues.cameraQueue.asyncAfter(deadline: .now() + 0.1) {
self.setTorchMode(self.torch)
}
}
}
// Audio Configuration
if shouldReconfigureAudioSession {
CameraQueues.audioQueue.async {
self.configureAudioSession()
}
}
}
}
func setupFpsGraph() {
@ -269,12 +241,16 @@ public final class CameraView: UIView {
}
// pragma MARK: Event Invokers
final func invokeOnError(_ error: CameraError, cause: NSError? = nil) {
func onError(_ error: CameraError) {
ReactLogger.log(level: .error, message: "Invoking onError(): \(error.message)")
guard let onError = onError else { return }
guard let onError = onError else {
return
}
var causeDictionary: [String: Any]?
if let cause = cause {
if case let .unknown(_, cause) = error,
let cause = cause {
causeDictionary = [
"code": cause.code,
"domain": cause.domain,
@ -289,9 +265,58 @@ public final class CameraView: UIView {
])
}
final func invokeOnInitialized() {
func onSessionInitialized() {
ReactLogger.log(level: .info, message: "Camera initialized!")
guard let onInitialized = onInitialized else { return }
guard let onInitialized = onInitialized else {
return
}
onInitialized([String: Any]())
}
func onFrame(sampleBuffer: CMSampleBuffer) {
#if VISION_CAMERA_ENABLE_FRAME_PROCESSORS
if let frameProcessor = frameProcessor {
// Call Frame Processor
let frame = Frame(buffer: sampleBuffer, orientation: bufferOrientation)
frameProcessor.call(frame)
}
#endif
#if DEBUG
if let fpsGraph {
fpsGraph.onTick(CACurrentMediaTime())
}
#endif
}
func onCodeScanned(codes: [CameraSession.Code]) {
guard let onCodeScanned = onCodeScanned else {
return
}
onCodeScanned([
"codes": codes.map { $0.toJSValue() },
])
}
/**
Gets the orientation of the CameraView's images (CMSampleBuffers).
*/
private var bufferOrientation: UIImage.Orientation {
guard let cameraPosition = cameraSession.videoDeviceInput?.device.position else {
return .up
}
let orientation = cameraSession.configuration?.orientation ?? .portrait
// TODO: I think this is wrong.
switch orientation {
case .portrait:
return cameraPosition == .front ? .leftMirrored : .right
case .landscapeLeft:
return cameraPosition == .front ? .downMirrored : .up
case .portraitUpsideDown:
return cameraPosition == .front ? .rightMirrored : .left
case .landscapeRight:
return cameraPosition == .front ? .upMirrored : .down
}
}
}

12
package/ios/CameraViewManager.m
View File

@ -25,19 +25,19 @@ RCT_EXTERN__BLOCKING_SYNCHRONOUS_METHOD(installFrameProcessorBindings);
RCT_EXPORT_VIEW_PROPERTY(isActive, BOOL);
RCT_EXPORT_VIEW_PROPERTY(cameraId, NSString);
RCT_EXPORT_VIEW_PROPERTY(enableDepthData, BOOL);
RCT_EXPORT_VIEW_PROPERTY(enableHighQualityPhotos, NSNumber); // nullable bool
RCT_EXPORT_VIEW_PROPERTY(enableHighQualityPhotos, BOOL);
RCT_EXPORT_VIEW_PROPERTY(enablePortraitEffectsMatteDelivery, BOOL);
RCT_EXPORT_VIEW_PROPERTY(enableBufferCompression, BOOL);
// use cases
RCT_EXPORT_VIEW_PROPERTY(photo, NSNumber); // nullable bool
RCT_EXPORT_VIEW_PROPERTY(video, NSNumber); // nullable bool
RCT_EXPORT_VIEW_PROPERTY(audio, NSNumber); // nullable bool
RCT_EXPORT_VIEW_PROPERTY(photo, BOOL);
RCT_EXPORT_VIEW_PROPERTY(video, BOOL);
RCT_EXPORT_VIEW_PROPERTY(audio, BOOL);
RCT_EXPORT_VIEW_PROPERTY(enableFrameProcessor, BOOL);
// device format
RCT_EXPORT_VIEW_PROPERTY(format, NSDictionary);
RCT_EXPORT_VIEW_PROPERTY(fps, NSNumber);
RCT_EXPORT_VIEW_PROPERTY(hdr, NSNumber); // nullable bool
RCT_EXPORT_VIEW_PROPERTY(lowLightBoost, NSNumber); // nullable bool
RCT_EXPORT_VIEW_PROPERTY(hdr, BOOL);
RCT_EXPORT_VIEW_PROPERTY(lowLightBoost, BOOL);
RCT_EXPORT_VIEW_PROPERTY(videoStabilizationMode, NSString);
RCT_EXPORT_VIEW_PROPERTY(pixelFormat, NSString);
// other props

4
package/ios/CameraViewManager.swift
View File

@ -38,6 +38,10 @@ final class CameraViewManager: RCTViewManager {
#endif
}
// TODO: The startRecording() func cannot be async because RN doesn't allow
// both a callback and a Promise in a single function. Wait for TurboModules?
// This means that any errors that occur in this function have to be delegated through
// the callback, but I'd prefer for them to throw for the original function instead.
@objc
final func startRecording(_ node: NSNumber, options: NSDictionary, onRecordCallback: @escaping RCTResponseSenderBlock) {
let component = getCameraView(withTag: node)

231
package/ios/Core/CameraConfiguration.swift Normal file
View File

@ -0,0 +1,231 @@
//
// CameraConfiguration.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
// MARK: - CameraConfiguration
class CameraConfiguration {
// pragma MARK: Configuration Props
// Input
var cameraId: String?
// Outputs
var photo: OutputConfiguration<Photo> = .disabled
var video: OutputConfiguration<Video> = .disabled
var codeScanner: OutputConfiguration<CodeScanner> = .disabled
// Orientation
var orientation: Orientation = .portrait
// Format
var format: CameraDeviceFormat?
// Side-Props
var fps: Int32?
var enableLowLightBoost = false
var torch: Torch = .off
// Zoom
var zoom: CGFloat?
// isActive (Start/Stop)
var isActive = false
// Audio Session
var audio: OutputConfiguration<Audio> = .disabled
init(copyOf other: CameraConfiguration?) {
if let other {
// copy over all values
cameraId = other.cameraId
photo = other.photo
video = other.video
codeScanner = other.codeScanner
orientation = other.orientation
format = other.format
fps = other.fps
enableLowLightBoost = other.enableLowLightBoost
torch = other.torch
zoom = other.zoom
isActive = other.isActive
audio = other.audio
} else {
// self will just be initialized with the default values.
}
}
// pragma MARK: Types
struct Difference {
let inputChanged: Bool
let outputsChanged: Bool
let orientationChanged: Bool
let formatChanged: Bool
let sidePropsChanged: Bool
let zoomChanged: Bool
let audioSessionChanged: Bool
/**
Returns `true` when props that affect the AVCaptureSession configuration (i.e. props that require beginConfiguration()) have changed.
[`inputChanged`, `outputsChanged`, `orientationChanged`]
*/
var isSessionConfigurationDirty: Bool {
return inputChanged || outputsChanged || orientationChanged
}
/**
Returns `true` when props that affect the AVCaptureDevice configuration (i.e. props that require lockForConfiguration()) have changed.
[`formatChanged`, `sidePropsChanged`, `zoomChanged`]
*/
var isDeviceConfigurationDirty: Bool {
return isSessionConfigurationDirty || formatChanged || sidePropsChanged || zoomChanged
}
init(between left: CameraConfiguration?, and right: CameraConfiguration) {
// cameraId
inputChanged = left?.cameraId != right.cameraId
// photo, video, codeScanner
outputsChanged = inputChanged || left?.photo != right.photo || left?.video != right.video || left?.codeScanner != right.codeScanner
// orientation
orientationChanged = outputsChanged || left?.orientation != right.orientation
// format (depends on cameraId)
formatChanged = inputChanged || left?.format != right.format
// side-props (depends on format)
sidePropsChanged = formatChanged || left?.fps != right.fps || left?.enableLowLightBoost != right.enableLowLightBoost || left?.torch != right.torch
// zoom (depends on format)
zoomChanged = formatChanged || left?.zoom != right.zoom
// audio session
audioSessionChanged = left?.audio != right.audio
}
}
enum OutputConfiguration<T: Equatable>: Equatable {
case disabled
case enabled(config: T)
public static func == (lhs: OutputConfiguration, rhs: OutputConfiguration) -> Bool {
switch (lhs, rhs) {
case (.disabled, .disabled):
return true
case let (.enabled(a), .enabled(b)):
return a == b
default:
return false
}
}
}
/**
A Photo Output configuration
*/
struct Photo: Equatable {
var enableHighQualityPhotos = false
var enableDepthData = false
var enablePortraitEffectsMatte = false
}
/**
A Video Output configuration
*/
struct Video: Equatable {
var pixelFormat: PixelFormat = .native
var enableBufferCompression = false
var enableHdr = false
var enableFrameProcessor = false
}
/**
An Audio Output configuration
*/
struct Audio: Equatable {
// no props for audio at the moment
}
}
extension CameraConfiguration.Video {
/**
Returns the pixel format that should be used for the given AVCaptureVideoDataOutput.
If HDR is enabled, this will return YUV 4:2:0 10-bit.
If HDR is disabled, this will return whatever the user specified as a pixelFormat, or the most efficient format as a fallback.
*/
func getPixelFormat(for videoOutput: AVCaptureVideoDataOutput) throws -> OSType {
// as per documentation, the first value is always the most efficient format
var defaultFormat = videoOutput.availableVideoPixelFormatTypes.first!
if enableBufferCompression {
// use compressed format instead if we enabled buffer compression
if defaultFormat == kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange &&
videoOutput.availableVideoPixelFormatTypes.contains(kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarVideoRange) {
// YUV 4:2:0 8-bit (limited video colors; compressed)
defaultFormat = kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarVideoRange
}
if defaultFormat == kCVPixelFormatType_420YpCbCr8BiPlanarFullRange &&
videoOutput.availableVideoPixelFormatTypes.contains(kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarFullRange) {
// YUV 4:2:0 8-bit (full video colors; compressed)
defaultFormat = kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarFullRange
}
}
// If the user enabled HDR, we can only use the YUV 4:2:0 10-bit pixel format.
if enableHdr == true {
guard pixelFormat == .native || pixelFormat == .yuv else {
throw CameraError.format(.incompatiblePixelFormatWithHDR)
}
var targetFormats = [kCVPixelFormatType_420YpCbCr10BiPlanarFullRange,
kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange]
if enableBufferCompression {
// If we enable buffer compression, try to use a lossless compressed YUV format first, otherwise fall back to the others.
targetFormats.insert(kCVPixelFormatType_Lossless_420YpCbCr10PackedBiPlanarVideoRange, at: 0)
}
// Find the best matching format
guard let format = videoOutput.findPixelFormat(firstOf: targetFormats) else {
throw CameraError.format(.invalidHdr)
}
// YUV 4:2:0 10-bit (compressed/uncompressed)
return format
}
// If we don't use HDR, we can use any other custom pixel format.
switch pixelFormat {
case .yuv:
// YUV 4:2:0 8-bit (full/limited video colors; uncompressed)
var targetFormats = [kCVPixelFormatType_420YpCbCr8BiPlanarFullRange,
kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange]
if enableBufferCompression {
// YUV 4:2:0 8-bit (full/limited video colors; compressed)
targetFormats.insert(kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarVideoRange, at: 0)
targetFormats.insert(kCVPixelFormatType_Lossless_420YpCbCr8BiPlanarFullRange, at: 0)
}
guard let format = videoOutput.findPixelFormat(firstOf: targetFormats) else {
throw CameraError.device(.pixelFormatNotSupported)
}
return format
case .rgb:
// RGBA 8-bit (uncompressed)
var targetFormats = [kCVPixelFormatType_32BGRA]
if enableBufferCompression {
// RGBA 8-bit (compressed)
targetFormats.insert(kCVPixelFormatType_Lossless_32BGRA, at: 0)
}
guard let format = videoOutput.findPixelFormat(firstOf: targetFormats) else {
throw CameraError.device(.pixelFormatNotSupported)
}
return format
case .native:
return defaultFormat
case .unknown:
throw CameraError.parameter(.invalid(unionName: "pixelFormat", receivedValue: "unknown"))
}
}
}

21
package/ios/CameraError.swift → package/ios/Core/CameraError.swift
View File

@ -175,7 +175,7 @@ enum CaptureError {
case recordingInProgress
case noRecordingInProgress
case fileError
case createTempFileError
case createTempFileError(message: String? = nil)
case createRecorderError(message: String? = nil)
case videoNotEnabled
case photoNotEnabled
@ -213,8 +213,8 @@ enum CaptureError {
return "There was no active video recording in progress! Did you call stopRecording() twice?"
case .fileError:
return "An unexpected File IO error occured!"
case .createTempFileError:
return "Failed to create a temporary file!"
case let .createTempFileError(message: message):
return "Failed to create a temporary file! \(message ?? "(no additional message)")"
case let .createRecorderError(message: message):
return "Failed to create the AVAssetWriter (Recorder)! \(message ?? "(no additional message)")"
case .videoNotEnabled:
@ -264,7 +264,7 @@ enum CameraError: Error {
case session(_ id: SessionError)
case capture(_ id: CaptureError)
case codeScanner(_ id: CodeScannerError)
case unknown(message: String? = nil)
case unknown(message: String? = nil, cause: NSError? = nil)
var code: String {
switch self {
@ -303,8 +303,17 @@ enum CameraError: Error {
return id.message
case let .codeScanner(id: id):
return id.message
case let .unknown(message: message):
return message ?? "An unexpected error occured."
case let .unknown(message: message, cause: cause):
return message ?? cause?.description ?? "An unexpected error occured."
}
}
var cause: NSError? {
switch self {
case let .unknown(message: _, cause: cause):
return cause
default:
return nil
}
}
}

2
package/ios/CameraQueues.swift → package/ios/Core/CameraQueues.swift
View File

@ -10,7 +10,7 @@ import Foundation
@objc
public class CameraQueues: NSObject {
/// The serial execution queue for the camera preview layer (input stream) as well as output processing of photos.
/// The serial execution queue for camera configuration and setup.
@objc public static let cameraQueue = DispatchQueue(label: "mrousavy/VisionCamera.main",
qos: .userInteractive,
attributes: [],

93
package/ios/Core/CameraSession+Audio.swift Normal file
View File

@ -0,0 +1,93 @@
//
// CameraSession+Audio.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension CameraSession {
/**
Configures the Audio session and activates it. If the session was active it will shortly be deactivated before configuration.
The Audio Session will be configured to allow background music, haptics (vibrations) and system sound playback while recording.
Background audio is allowed to play on speakers or bluetooth speakers.
*/
final func activateAudioSession() throws {
ReactLogger.log(level: .info, message: "Activating Audio Session...")
do {
let audioSession = AVAudioSession.sharedInstance()
try audioSession.updateCategory(AVAudioSession.Category.playAndRecord,
options: [.mixWithOthers,
.allowBluetoothA2DP,
.defaultToSpeaker,
.allowAirPlay])
if #available(iOS 14.5, *) {
// prevents the audio session from being interrupted by a phone call
try audioSession.setPrefersNoInterruptionsFromSystemAlerts(true)
}
if #available(iOS 13.0, *) {
// allow system sounds (notifications, calls, music) to play while recording
try audioSession.setAllowHapticsAndSystemSoundsDuringRecording(true)
}
audioCaptureSession.startRunning()
} catch let error as NSError {
ReactLogger.log(level: .error, message: "Failed to activate audio session! Error \(error.code): \(error.description)")
switch error.code {
case 561_017_449:
throw CameraError.session(.audioInUseByOtherApp)
default:
throw CameraError.session(.audioSessionFailedToActivate)
}
}
}
final func deactivateAudioSession() {
ReactLogger.log(level: .info, message: "Deactivating Audio Session...")
audioCaptureSession.stopRunning()
}
@objc
func audioSessionInterrupted(notification: Notification) {
ReactLogger.log(level: .error, message: "Audio Session Interruption Notification!")
guard let userInfo = notification.userInfo,
let typeValue = userInfo[AVAudioSessionInterruptionTypeKey] as? UInt,
let type = AVAudioSession.InterruptionType(rawValue: typeValue) else {
return
}
// TODO: Add JS-Event for Audio Session interruptions?
switch type {
case .began:
// Something interrupted our Audio Session, stop recording audio.
ReactLogger.log(level: .error, message: "The Audio Session was interrupted!")
case .ended:
ReactLogger.log(level: .info, message: "The Audio Session interruption has ended.")
guard let optionsValue = userInfo[AVAudioSessionInterruptionOptionKey] as? UInt else { return }
let options = AVAudioSession.InterruptionOptions(rawValue: optionsValue)
if options.contains(.shouldResume) {
// Try resuming if possible
if isRecording {
CameraQueues.audioQueue.async {
ReactLogger.log(level: .info, message: "Resuming interrupted Audio Session...")
// restart audio session because interruption is over
try? self.activateAudioSession()
}
}
} else {
ReactLogger.log(level: .error, message: "Cannot resume interrupted Audio Session!")
}
@unknown default:
()
}
}
}

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//
// CameraSession+CodeScanner.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension CameraSession: AVCaptureMetadataOutputObjectsDelegate {
public func metadataOutput(_: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from _: AVCaptureConnection) {
guard let onCodeScanned = delegate?.onCodeScanned else {
// No delegate callback
return
}
guard !metadataObjects.isEmpty else {
// No codes detected
return
}
guard let device = videoDeviceInput?.device else {
// No cameraId set
return
}
let size = device.activeFormat.videoDimensions
// Map codes to JS values
let codes = metadataObjects.map { object in
var value: String?
if let code = object as? AVMetadataMachineReadableCodeObject {
value = code.stringValue
}
let x = object.bounds.origin.x * Double(size.width)
let y = object.bounds.origin.y * Double(size.height)
let w = object.bounds.width * Double(size.width)
let h = object.bounds.height * Double(size.height)
let frame = CGRect(x: x, y: y, width: w, height: h)
return Code(type: object.type, value: value, frame: frame)
}
// Call delegate (JS) event
onCodeScanned(codes)
}
/**
A scanned QR/Barcode.
*/
struct Code {
/**
Type of the scanned Code
*/
let type: AVMetadataObject.ObjectType
/**
Decoded value of the code
*/
let value: String?
/**
Location of the code on-screen, relative to the video output layer
*/
let frame: CGRect
/**
Converts this Code to a JS Object (Dictionary)
*/
func toJSValue() -> [String: AnyHashable] {
return [
"type": type.descriptor,
"value": value,
"frame": [
"x": frame.origin.x,
"y": frame.origin.y,
"width": frame.size.width,
"height": frame.size.height,
],
]
}
}
}

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//
// CameraSession+Configuration.swift
// VisionCamera
//
// Created by Marc Rousavy on 12.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension CameraSession {
// pragma MARK: Input Device
/**
Configures the Input Device (`cameraId`)
*/
func configureDevice(configuration: CameraConfiguration) throws {
ReactLogger.log(level: .info, message: "Configuring Input Device...")
// Remove all inputs
captureSession.inputs.forEach { input in
captureSession.removeInput(input)
}
videoDeviceInput = nil
#if targetEnvironment(simulator)
// iOS Simulators don't have Cameras
throw CameraError.device(.notAvailableOnSimulator)
#endif
guard let cameraId = configuration.cameraId else {
throw CameraError.device(.noDevice)
}
ReactLogger.log(level: .info, message: "Configuring Camera \(cameraId)...")
// Video Input (Camera Device/Sensor)
guard let videoDevice = AVCaptureDevice(uniqueID: cameraId) else {
throw CameraError.device(.invalid)
}
let input = try AVCaptureDeviceInput(device: videoDevice)
guard captureSession.canAddInput(input) else {
throw CameraError.parameter(.unsupportedInput(inputDescriptor: "video-input"))
}
captureSession.addInput(input)
videoDeviceInput = input
ReactLogger.log(level: .info, message: "Successfully configured Input Device!")
}
// pragma MARK: Outputs
/**
Configures all outputs (`photo` + `video` + `codeScanner`)
*/
func configureOutputs(configuration: CameraConfiguration) throws {
ReactLogger.log(level: .info, message: "Configuring Outputs...")
// Remove all outputs
captureSession.outputs.forEach { output in
captureSession.removeOutput(output)
}
photoOutput = nil
videoOutput = nil
audioOutput = nil
codeScannerOutput = nil
// Photo Output
if case let .enabled(photo) = configuration.photo {
ReactLogger.log(level: .info, message: "Adding Photo output...")
let photoOutput = AVCapturePhotoOutput()
// 1. Configure
if photo.enableHighQualityPhotos {
// TODO: In iOS 16 this will be removed in favor of maxPhotoDimensions.
photoOutput.isHighResolutionCaptureEnabled = true
if #available(iOS 13.0, *) {
// TODO: Test if this actually does any fusion or if this just calls the captureOutput twice. If the latter, remove it.
photoOutput.isVirtualDeviceConstituentPhotoDeliveryEnabled = photoOutput.isVirtualDeviceConstituentPhotoDeliverySupported
photoOutput.maxPhotoQualityPrioritization = .quality
} else {
photoOutput.isDualCameraDualPhotoDeliveryEnabled = photoOutput.isDualCameraDualPhotoDeliverySupported
}
}
// TODO: Enable isResponsiveCaptureEnabled? (iOS 17+)
// TODO: Enable isFastCapturePrioritizationEnabled? (iOS 17+)
if photo.enableDepthData {
photoOutput.isDepthDataDeliveryEnabled = photoOutput.isDepthDataDeliverySupported
}
if #available(iOS 12.0, *), photo.enablePortraitEffectsMatte {
photoOutput.isPortraitEffectsMatteDeliveryEnabled = photoOutput.isPortraitEffectsMatteDeliverySupported
}
// 2. Add
guard captureSession.canAddOutput(photoOutput) else {
throw CameraError.parameter(.unsupportedOutput(outputDescriptor: "photo-output"))
}
captureSession.addOutput(photoOutput)
self.photoOutput = photoOutput
}
// Video Output + Frame Processor
if case let .enabled(video) = configuration.video {
ReactLogger.log(level: .info, message: "Adding Video Data output...")
let videoOutput = AVCaptureVideoDataOutput()
// 1. Configure
videoOutput.setSampleBufferDelegate(self, queue: CameraQueues.videoQueue)
videoOutput.alwaysDiscardsLateVideoFrames = true
let pixelFormatType = try video.getPixelFormat(for: videoOutput)
videoOutput.videoSettings = [
String(kCVPixelBufferPixelFormatTypeKey): pixelFormatType,
]
// 2. Add
guard captureSession.canAddOutput(videoOutput) else {
throw CameraError.parameter(.unsupportedOutput(outputDescriptor: "video-output"))
}
captureSession.addOutput(videoOutput)
self.videoOutput = videoOutput
}
// Code Scanner
if case let .enabled(codeScanner) = configuration.codeScanner {
ReactLogger.log(level: .info, message: "Adding Code Scanner output...")
let codeScannerOutput = AVCaptureMetadataOutput()
// 1. Configure
try codeScanner.codeTypes.forEach { type in
if !codeScannerOutput.availableMetadataObjectTypes.contains(type) {
throw CameraError.codeScanner(.codeTypeNotSupported(codeType: type.descriptor))
}
}
codeScannerOutput.setMetadataObjectsDelegate(self, queue: CameraQueues.codeScannerQueue)
codeScannerOutput.metadataObjectTypes = codeScanner.codeTypes
if let rectOfInterest = codeScanner.regionOfInterest {
codeScannerOutput.rectOfInterest = rectOfInterest
}
// 2. Add
guard captureSession.canAddOutput(codeScannerOutput) else {
throw CameraError.codeScanner(.notCompatibleWithOutputs)
}
captureSession.addOutput(codeScannerOutput)
self.codeScannerOutput = codeScannerOutput
}
// Done!
ReactLogger.log(level: .info, message: "Successfully configured all outputs!")
delegate?.onSessionInitialized()
}
// pragma MARK: Orientation
func configureOrientation(configuration: CameraConfiguration) {
// Set up orientation and mirroring for all outputs.
// Note: Photos are only rotated through EXIF tags, and Preview through view transforms
let isMirrored = videoDeviceInput?.device.position == .front
captureSession.outputs.forEach { output in
if isMirrored {
output.mirror()
}
output.setOrientation(configuration.orientation)
}
}
// pragma MARK: Format
/**
Configures the active format (`format`)
*/
func configureFormat(configuration: CameraConfiguration) throws {
guard let targetFormat = configuration.format else {
// No format was set, just use the default.
return
}
ReactLogger.log(level: .info, message: "Configuring Format (\(targetFormat))...")
guard let device = videoDeviceInput?.device else {
throw CameraError.session(.cameraNotReady)
}
let currentFormat = CameraDeviceFormat(fromFormat: device.activeFormat)
if currentFormat == targetFormat {
ReactLogger.log(level: .info, message: "Already selected active format, no need to configure.")
return
}
// Find matching format (JS Dictionary -> strongly typed Swift class)
let format = device.formats.first { targetFormat.isEqualTo(format: $0) }
guard let format else {
throw CameraError.format(.invalidFormat)
}
// Set new device Format
device.activeFormat = format
ReactLogger.log(level: .info, message: "Successfully configured Format!")
}
// pragma MARK: Side-Props
/**
Configures format-dependant "side-props" (`fps`, `lowLightBoost`, `torch`)
*/
func configureSideProps(configuration: CameraConfiguration) throws {
guard let device = videoDeviceInput?.device else {
throw CameraError.session(.cameraNotReady)
}
// Configure FPS
if let fps = configuration.fps {
let supportsGivenFps = device.activeFormat.videoSupportedFrameRateRanges.contains { range in
return range.includes(fps: Double(fps))
}
if !supportsGivenFps {
throw CameraError.format(.invalidFps(fps: Int(fps)))
}
let duration = CMTimeMake(value: 1, timescale: fps)
device.activeVideoMinFrameDuration = duration
device.activeVideoMaxFrameDuration = duration
} else {
device.activeVideoMinFrameDuration = CMTime.invalid
device.activeVideoMaxFrameDuration = CMTime.invalid
}
// Configure Low-Light-Boost
if configuration.enableLowLightBoost {
let isDifferent = configuration.enableLowLightBoost != device.automaticallyEnablesLowLightBoostWhenAvailable
if isDifferent && !device.isLowLightBoostSupported {
throw CameraError.device(.lowLightBoostNotSupported)
}
device.automaticallyEnablesLowLightBoostWhenAvailable = configuration.enableLowLightBoost
}
// Configure Torch
if configuration.torch != .off {
guard device.hasTorch else {
throw CameraError.device(.flashUnavailable)
}
device.torchMode = configuration.torch.toTorchMode()
try device.setTorchModeOn(level: 1.0)
}
}
// pragma MARK: Zoom
/**
Configures zoom (`zoom`)
*/
func configureZoom(configuration: CameraConfiguration) throws {
guard let device = videoDeviceInput?.device else {
throw CameraError.session(.cameraNotReady)
}
guard let zoom = configuration.zoom else {
return
}
let clamped = max(min(zoom, device.activeFormat.videoMaxZoomFactor), device.minAvailableVideoZoomFactor)
device.videoZoomFactor = clamped
}
// pragma MARK: Audio
/**
Configures the Audio Capture Session with an audio input and audio data output.
*/
func configureAudioSession(configuration: CameraConfiguration) throws {
ReactLogger.log(level: .info, message: "Configuring Audio Session...")
// Prevent iOS from automatically configuring the Audio Session for us
audioCaptureSession.automaticallyConfiguresApplicationAudioSession = false
let enableAudio = configuration.audio != .disabled
// Check microphone permission
if enableAudio {
let audioPermissionStatus = AVCaptureDevice.authorizationStatus(for: .audio)
if audioPermissionStatus != .authorized {
throw CameraError.permission(.microphone)
}
}
// Remove all current inputs
audioCaptureSession.inputs.forEach { input in
audioCaptureSession.removeInput(input)
}
audioDeviceInput = nil
// Audio Input (Microphone)
if enableAudio {
ReactLogger.log(level: .info, message: "Adding Audio input...")
guard let microphone = AVCaptureDevice.default(for: .audio) else {
throw CameraError.device(.microphoneUnavailable)
}
let input = try AVCaptureDeviceInput(device: microphone)
guard audioCaptureSession.canAddInput(input) else {
throw CameraError.parameter(.unsupportedInput(inputDescriptor: "audio-input"))
}
audioCaptureSession.addInput(input)
audioDeviceInput = input
}
// Remove all current outputs
audioCaptureSession.outputs.forEach { output in
audioCaptureSession.removeOutput(output)
}
audioOutput = nil
// Audio Output
if enableAudio {
ReactLogger.log(level: .info, message: "Adding Audio Data output...")
let output = AVCaptureAudioDataOutput()
guard audioCaptureSession.canAddOutput(output) else {
throw CameraError.parameter(.unsupportedOutput(outputDescriptor: "audio-output"))
}
output.setSampleBufferDelegate(self, queue: CameraQueues.audioQueue)
audioCaptureSession.addOutput(output)
audioOutput = output
}
}
}

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//
// CameraSession+Focus.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension CameraSession {
/**
Focuses the Camera to the specified point. The point must be in the Camera coordinate system, so {0...1} on both axis.
*/
func focus(point: CGPoint) throws {
guard let device = videoDeviceInput?.device else {
throw CameraError.session(SessionError.cameraNotReady)
}
if !device.isFocusPointOfInterestSupported {
throw CameraError.device(DeviceError.focusNotSupported)
}
do {
try device.lockForConfiguration()
defer {
device.unlockForConfiguration()
}
// Set Focus
if device.isFocusPointOfInterestSupported {
device.focusPointOfInterest = point
device.focusMode = .autoFocus
}
// Set Exposure
if device.isExposurePointOfInterestSupported {
device.exposurePointOfInterest = point
device.exposureMode = .autoExpose
}
// Remove any existing listeners
NotificationCenter.default.removeObserver(self,
name: NSNotification.Name.AVCaptureDeviceSubjectAreaDidChange,
object: nil)
// Listen for focus completion
device.isSubjectAreaChangeMonitoringEnabled = true
NotificationCenter.default.addObserver(self,
selector: #selector(subjectAreaDidChange),
name: NSNotification.Name.AVCaptureDeviceSubjectAreaDidChange,
object: nil)
} catch {
throw CameraError.device(DeviceError.configureError)
}
}
@objc
func subjectAreaDidChange(notification _: NSNotification) {
guard let device = videoDeviceInput?.device else {
return
}
try? device.lockForConfiguration()
defer {
device.unlockForConfiguration()
}
// Reset Focus to continuous/auto
if device.isFocusPointOfInterestSupported {
device.focusMode = .continuousAutoFocus
}
// Reset Exposure to continuous/auto
if device.isExposurePointOfInterestSupported {
device.exposureMode = .continuousAutoExposure
}
// Disable listeners
device.isSubjectAreaChangeMonitoringEnabled = false
}
}

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//
// CameraSession+Photo.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension CameraSession {
/**
Takes a photo.
`takePhoto` is only available if `photo={true}`.
*/
func takePhoto(options: NSDictionary, promise: Promise) {
// Run on Camera Queue
CameraQueues.cameraQueue.async {
// Get Photo Output configuration
guard let configuration = self.configuration else {
promise.reject(error: .session(.cameraNotReady))
return
}
guard case let .enabled(config: photo) = configuration.photo else {
// User needs to enable photo={true}
promise.reject(error: .capture(.photoNotEnabled))
return
}
// Check if Photo Output is available
guard let photoOutput = self.photoOutput,
let videoDeviceInput = self.videoDeviceInput else {
// Camera is not yet ready
promise.reject(error: .session(.cameraNotReady))
return
}
ReactLogger.log(level: .info, message: "Capturing photo...")
// Create photo settings
let photoSettings = AVCapturePhotoSettings()
// default, overridable settings if high quality capture was enabled
if photo.enableHighQualityPhotos {
// TODO: On iOS 16+ this will be removed in favor of maxPhotoDimensions.
photoSettings.isHighResolutionPhotoEnabled = true
if #available(iOS 13.0, *) {
photoSettings.photoQualityPrioritization = .quality
}
}
// flash
if videoDeviceInput.device.isFlashAvailable, let flash = options["flash"] as? String {
guard let flashMode = AVCaptureDevice.FlashMode(withString: flash) else {
promise.reject(error: .parameter(.invalid(unionName: "FlashMode", receivedValue: flash)))
return
}
photoSettings.flashMode = flashMode
}
// shutter sound
let enableShutterSound = options["enableShutterSound"] as? Bool ?? true
// depth data
photoSettings.isDepthDataDeliveryEnabled = photoOutput.isDepthDataDeliveryEnabled
if #available(iOS 12.0, *) {
photoSettings.isPortraitEffectsMatteDeliveryEnabled = photoOutput.isPortraitEffectsMatteDeliveryEnabled
}
// quality prioritization
if #available(iOS 13.0, *), let qualityPrioritization = options["qualityPrioritization"] as? String {
guard let photoQualityPrioritization = AVCapturePhotoOutput.QualityPrioritization(withString: qualityPrioritization) else {
promise.reject(error: .parameter(.invalid(unionName: "QualityPrioritization", receivedValue: qualityPrioritization)))
return
}
photoSettings.photoQualityPrioritization = photoQualityPrioritization
}
// photo size is always the one selected in the format
if #available(iOS 16.0, *) {
photoSettings.maxPhotoDimensions = photoOutput.maxPhotoDimensions
}
// red-eye reduction
if #available(iOS 12.0, *), let autoRedEyeReduction = options["enableAutoRedEyeReduction"] as? Bool {
photoSettings.isAutoRedEyeReductionEnabled = autoRedEyeReduction
}
// stabilization
if let enableAutoStabilization = options["enableAutoStabilization"] as? Bool {
photoSettings.isAutoStillImageStabilizationEnabled = enableAutoStabilization
}
// distortion correction
if #available(iOS 14.1, *), let enableAutoDistortionCorrection = options["enableAutoDistortionCorrection"] as? Bool {
photoSettings.isAutoContentAwareDistortionCorrectionEnabled = enableAutoDistortionCorrection
}
// Actually do the capture!
photoOutput.capturePhoto(with: photoSettings, delegate: PhotoCaptureDelegate(promise: promise, enableShutterSound: enableShutterSound))
// Assume that `takePhoto` is always called with the same parameters, so prepare the next call too.
photoOutput.setPreparedPhotoSettingsArray([photoSettings], completionHandler: nil)
}
}
}

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//
// CameraSession+Video.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
import UIKit
extension CameraSession {
/**
Starts a video + audio recording with a custom Asset Writer.
*/
func startRecording(options: RecordVideoOptions,
onVideoRecorded: @escaping (_ video: Video) -> Void,
onError: @escaping (_ error: CameraError) -> Void) {
// Run on Camera Queue
CameraQueues.cameraQueue.async {
ReactLogger.log(level: .info, message: "Starting Video recording...")
if options.flash != .off {
// use the torch as the video's flash
self.configure { config in
config.torch = options.flash
}
}
// Get Video Output
guard let videoOutput = self.videoOutput else {
if self.configuration?.video == .disabled {
onError(.capture(.videoNotEnabled))
} else {
onError(.session(.cameraNotReady))
}
return
}
let enableAudio = self.configuration?.audio != .disabled
// Callback for when the recording ends
let onFinish = { (recordingSession: RecordingSession, status: AVAssetWriter.Status, error: Error?) in
defer {
// Disable Audio Session again
if enableAudio {
CameraQueues.audioQueue.async {
self.deactivateAudioSession()
}
}
// Reset flash
if options.flash != .off {
// Set torch mode back to what it was before if we used it for the video flash.
self.configure { config in
let torch = self.configuration?.torch ?? .off
config.torch = torch
}
}
}
self.recordingSession = nil
self.isRecording = false
ReactLogger.log(level: .info, message: "RecordingSession finished with status \(status.descriptor).")
if let error = error as NSError? {
ReactLogger.log(level: .error, message: "RecordingSession Error \(error.code): \(error.description)")
// Something went wrong, we have an error
if error.domain == "capture/aborted" {
onError(.capture(.aborted))
} else {
onError(.capture(.unknown(message: "An unknown recording error occured! \(error.code) \(error.description)")))
}
} else {
if status == .completed {
// Recording was successfully saved
let video = Video(path: recordingSession.url.absoluteString,
duration: recordingSession.duration)
onVideoRecorded(video)
} else {
// Recording wasn't saved and we don't have an error either.
onError(.unknown(message: "AVAssetWriter completed with status: \(status.descriptor)"))
}
}
}
// Create temporary file
let errorPointer = ErrorPointer(nilLiteral: ())
let fileExtension = options.fileType.descriptor ?? "mov"
guard let tempFilePath = RCTTempFilePath(fileExtension, errorPointer) else {
let message = errorPointer?.pointee?.description
onError(.capture(.createTempFileError(message: message)))
return
}
ReactLogger.log(level: .info, message: "File path: \(tempFilePath)")
let tempURL = URL(string: "file://\(tempFilePath)")!
let recordingSession: RecordingSession
do {
recordingSession = try RecordingSession(url: tempURL,
fileType: options.fileType,
completion: onFinish)
} catch let error as NSError {
onError(.capture(.createRecorderError(message: error.description)))
return
}
self.recordingSession = recordingSession
// Init Video
guard var videoSettings = self.recommendedVideoSettings(videoOutput: videoOutput,
fileType: options.fileType,
videoCodec: options.codec),
!videoSettings.isEmpty else {
onError(.capture(.createRecorderError(message: "Failed to get video settings!")))
return
}
ReactLogger.log(level: .trace, message: "Recommended Video Settings: \(videoSettings.description)")
// Custom Video Bit Rate
if let videoBitRate = options.bitRate {
// Convert from Mbps -> bps
let bitsPerSecond = videoBitRate * 1_000_000
videoSettings[AVVideoCompressionPropertiesKey] = [
AVVideoAverageBitRateKey: NSNumber(value: bitsPerSecond),
]
}
// get pixel format (420f, 420v, x420)
let pixelFormat = videoOutput.pixelFormat
recordingSession.initializeVideoWriter(withSettings: videoSettings,
pixelFormat: pixelFormat)
// Enable/Activate Audio Session (optional)
if enableAudio {
if let audioOutput = self.audioOutput {
// Activate Audio Session asynchronously
CameraQueues.audioQueue.async {
do {
try self.activateAudioSession()
} catch {
self.onConfigureError(error)
}
}
// Initialize audio asset writer
let audioSettings = audioOutput.recommendedAudioSettingsForAssetWriter(writingTo: options.fileType)
recordingSession.initializeAudioWriter(withSettings: audioSettings)
}
}
// start recording session with or without audio.
do {
try recordingSession.startAssetWriter()
self.isRecording = true
} catch let error as NSError {
onError(.capture(.createRecorderError(message: "RecordingSession failed to start asset writer. \(error.description)")))
return
}
}
}
/**
Stops an active recording.
*/
func stopRecording(promise: Promise) {
CameraQueues.cameraQueue.async {
self.isRecording = false
withPromise(promise) {
guard let recordingSession = self.recordingSession else {
throw CameraError.capture(.noRecordingInProgress)
}
recordingSession.finish()
return nil
}
}
}
/**
Pauses an active recording.
*/
func pauseRecording(promise: Promise) {
CameraQueues.cameraQueue.async {
withPromise(promise) {
guard self.recordingSession != nil else {
// there's no active recording!
throw CameraError.capture(.noRecordingInProgress)
}
self.isRecording = false
return nil
}
}
}
/**
Resumes an active, but paused recording.
*/
func resumeRecording(promise: Promise) {
CameraQueues.cameraQueue.async {
withPromise(promise) {
guard self.recordingSession != nil else {
// there's no active recording!
throw CameraError.capture(.noRecordingInProgress)
}
self.isRecording = true
return nil
}
}
}
private func recommendedVideoSettings(videoOutput: AVCaptureVideoDataOutput,
fileType: AVFileType,
videoCodec: AVVideoCodecType?) -> [String: Any]? {
if videoCodec != nil {
return videoOutput.recommendedVideoSettings(forVideoCodecType: videoCodec!, assetWriterOutputFileType: fileType)
} else {
return videoOutput.recommendedVideoSettingsForAssetWriter(writingTo: fileType)
}
}
}

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//
// CameraSession.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
/**
A fully-featured Camera Session supporting preview, video, photo, frame processing, and code scanning outputs.
All changes to the session have to be controlled via the `configure` function.
*/
class CameraSession: NSObject, AVCaptureVideoDataOutputSampleBufferDelegate, AVCaptureAudioDataOutputSampleBufferDelegate {
// Configuration
var configuration: CameraConfiguration?
// Capture Session
let captureSession = AVCaptureSession()
let audioCaptureSession = AVCaptureSession()
// Inputs & Outputs
var videoDeviceInput: AVCaptureDeviceInput?
var audioDeviceInput: AVCaptureDeviceInput?
var photoOutput: AVCapturePhotoOutput?
var videoOutput: AVCaptureVideoDataOutput?
var audioOutput: AVCaptureAudioDataOutput?
var codeScannerOutput: AVCaptureMetadataOutput?
// State
var recordingSession: RecordingSession?
var isRecording = false
// Callbacks
weak var delegate: CameraSessionDelegate?
// Public accessors
var maxZoom: Double {
if let device = videoDeviceInput?.device {
return device.maxAvailableVideoZoomFactor
}
return 1.0
}
/**
Create a new instance of the `CameraSession`.
The `onError` callback is used for any runtime errors.
*/
override init() {
super.init()
NotificationCenter.default.addObserver(self,
selector: #selector(sessionRuntimeError),
name: .AVCaptureSessionRuntimeError,
object: captureSession)
NotificationCenter.default.addObserver(self,
selector: #selector(sessionRuntimeError),
name: .AVCaptureSessionRuntimeError,
object: audioCaptureSession)
NotificationCenter.default.addObserver(self,
selector: #selector(audioSessionInterrupted),
name: AVAudioSession.interruptionNotification,
object: AVAudioSession.sharedInstance)
}
deinit {
NotificationCenter.default.removeObserver(self,
name: .AVCaptureSessionRuntimeError,
object: captureSession)
NotificationCenter.default.removeObserver(self,
name: .AVCaptureSessionRuntimeError,
object: audioCaptureSession)
NotificationCenter.default.removeObserver(self,
name: AVAudioSession.interruptionNotification,
object: AVAudioSession.sharedInstance)
}
/**
Creates a PreviewView for the current Capture Session
*/
func createPreviewView(frame: CGRect) -> PreviewView {
return PreviewView(frame: frame, session: captureSession)
}
func onConfigureError(_ error: Error) {
if let error = error as? CameraError {
// It's a typed Error
delegate?.onError(error)
} else {
// It's any kind of unknown error
let cameraError = CameraError.unknown(message: error.localizedDescription)
delegate?.onError(cameraError)
}
}
/**
Update the session configuration.
Any changes in here will be re-configured only if required, and under a lock.
The `configuration` object is a copy of the currently active configuration that can be modified by the caller in the lambda.
*/
func configure(_ lambda: (_ configuration: CameraConfiguration) throws -> Void) {
ReactLogger.log(level: .info, message: "Updating Session Configuration...")
// Let caller configure a new configuration for the Camera.
let config = CameraConfiguration(copyOf: configuration)
do {
try lambda(config)
} catch {
onConfigureError(error)
}
let difference = CameraConfiguration.Difference(between: configuration, and: config)
// Set up Camera (Video) Capture Session (on camera queue)
CameraQueues.cameraQueue.async {
do {
// If needed, configure the AVCaptureSession (inputs, outputs)
if difference.isSessionConfigurationDirty {
// Lock Capture Session for configuration
ReactLogger.log(level: .info, message: "Beginning CameraSession configuration...")
self.captureSession.beginConfiguration()
// 1. Update input device
if difference.inputChanged {
try self.configureDevice(configuration: config)
}
// 2. Update outputs
if difference.outputsChanged {
try self.configureOutputs(configuration: config)
}
// 3. Update output orientation
if difference.orientationChanged {
self.configureOrientation(configuration: config)
}
// Unlock Capture Session again and submit configuration to Hardware
self.captureSession.commitConfiguration()
ReactLogger.log(level: .info, message: "Committed CameraSession configuration!")
}
// If needed, configure the AVCaptureDevice (format, zoom, low-light-boost, ..)
if difference.isDeviceConfigurationDirty {
guard let device = self.videoDeviceInput?.device else {
throw CameraError.session(.cameraNotReady)
}
ReactLogger.log(level: .info, message: "Beginning CaptureDevice configuration...")
try device.lockForConfiguration()
// 4. Configure format
if difference.formatChanged {
try self.configureFormat(configuration: config)
}
// 5. Configure side-props (fps, lowLightBoost)
if difference.sidePropsChanged {
try self.configureSideProps(configuration: config)
}
// 6. Configure zoom
if difference.zoomChanged {
try self.configureZoom(configuration: config)
}
device.unlockForConfiguration()
ReactLogger.log(level: .info, message: "Committed CaptureDevice configuration!")
}
// 6. Start or stop the session if needed
self.checkIsActive(configuration: config)
// Update successful, set the new configuration!
self.configuration = config
} catch {
self.onConfigureError(error)
}
}
// Set up Audio Capture Session (on audio queue)
if difference.audioSessionChanged {
CameraQueues.audioQueue.async {
do {
// Lock Capture Session for configuration
ReactLogger.log(level: .info, message: "Beginning AudioSession configuration...")
self.audioCaptureSession.beginConfiguration()
try self.configureAudioSession(configuration: config)
// Unlock Capture Session again and submit configuration to Hardware
self.audioCaptureSession.commitConfiguration()
ReactLogger.log(level: .info, message: "Committed AudioSession configuration!")
} catch {
self.onConfigureError(error)
}
}
}
}
/**
Starts or stops the CaptureSession if needed (`isActive`)
*/
private func checkIsActive(configuration: CameraConfiguration) {
if configuration.isActive == captureSession.isRunning {
return
}
// Start/Stop session
if configuration.isActive {
captureSession.startRunning()
} else {
captureSession.stopRunning()
}
}
/**
Called for every new Frame in the Video output
*/
public final func captureOutput(_ captureOutput: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from _: AVCaptureConnection) {
// Call Frame Processor (delegate) for every Video Frame
if captureOutput is AVCaptureVideoDataOutput {
delegate?.onFrame(sampleBuffer: sampleBuffer)
}
// Record Video Frame/Audio Sample to File in custom `RecordingSession` (AVAssetWriter)
if isRecording {
guard let recordingSession = recordingSession else {
delegate?.onError(.capture(.unknown(message: "isRecording was true but the RecordingSession was null!")))
return
}
switch captureOutput {
case is AVCaptureVideoDataOutput:
recordingSession.appendBuffer(sampleBuffer, type: .video, timestamp: CMSampleBufferGetPresentationTimeStamp(sampleBuffer))
case is AVCaptureAudioDataOutput:
let timestamp = CMSyncConvertTime(CMSampleBufferGetPresentationTimeStamp(sampleBuffer),
from: audioCaptureSession.masterClock ?? CMClockGetHostTimeClock(),
to: captureSession.masterClock ?? CMClockGetHostTimeClock())
recordingSession.appendBuffer(sampleBuffer, type: .audio, timestamp: timestamp)
default:
break
}
}
}
// pragma MARK: Notifications
@objc
func sessionRuntimeError(notification: Notification) {
ReactLogger.log(level: .error, message: "Unexpected Camera Runtime Error occured!")
guard let error = notification.userInfo?[AVCaptureSessionErrorKey] as? AVError else {
return
}
// Notify consumer about runtime error
delegate?.onError(.unknown(message: error._nsError.description, cause: error._nsError))
let shouldRestart = configuration?.isActive == true
if shouldRestart {
// restart capture session after an error occured
CameraQueues.cameraQueue.async {
self.captureSession.startRunning()
}
}
}
}

32
package/ios/Core/CameraSessionDelegate.swift Normal file
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@ -0,0 +1,32 @@
//
// CameraSessionDelegate.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
/**
A listener for [CameraSession] events
*/
protocol CameraSessionDelegate: AnyObject {
/**
Called when there is a Runtime Error in the [CameraSession]
*/
func onError(_ error: CameraError)
/**
Called when the [CameraSession] successfully initializes
*/
func onSessionInitialized()
/**
Called for every frame (if video or frameProcessor is enabled)
*/
func onFrame(sampleBuffer: CMSampleBuffer)
/**
Called whenever a QR/Barcode has been scanned. Only if the CodeScanner Output is enabled
*/
func onCodeScanned(codes: [CameraSession.Code])
}

4
package/ios/PhotoCaptureDelegate.swift → package/ios/Core/PhotoCaptureDelegate.swift
View File

@ -8,6 +8,7 @@
import AVFoundation
// Keeps a strong reference on delegates, as the AVCapturePhotoOutput only holds a weak reference.
private var delegatesReferences: [NSObject] = []
// MARK: - PhotoCaptureDelegate
@ -42,7 +43,8 @@ class PhotoCaptureDelegate: NSObject, AVCapturePhotoCaptureDelegate {
let error = ErrorPointer(nilLiteral: ())
guard let tempFilePath = RCTTempFilePath("jpeg", error)
else {
promise.reject(error: .capture(.createTempFileError), cause: error?.pointee)
let message = error?.pointee?.description
promise.reject(error: .capture(.createTempFileError(message: message)), cause: error?.pointee)
return
}
let url = URL(string: "file://\(tempFilePath)")!

0
package/ios/PreviewView.swift → package/ios/Core/PreviewView.swift
View File

6
package/ios/RecordingSession.swift → package/ios/Core/RecordingSession.swift
View File

@ -93,11 +93,7 @@ class RecordingSession {
/**
Initializes an AssetWriter for audio frames (CMSampleBuffers).
*/
func initializeAudioWriter(withSettings settings: [String: Any]) {
guard !settings.isEmpty else {
ReactLogger.log(level: .error, message: "Tried to initialize Audio Writer with empty settings!")
return
}
func initializeAudioWriter(withSettings settings: [String: Any]?) {
guard audioWriter == nil else {
ReactLogger.log(level: .error, message: "Tried to add Audio Writer twice!")
return

23
package/ios/Extensions/AVAudioSession+trySetAllowHaptics.swift
View File

@ -1,23 +0,0 @@
//
// AVAudioSession+trySetAllowHaptics.swift
// VisionCamera
//
// Created by Marc Rousavy on 26.03.21.
// Copyright © 2021 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension AVAudioSession {
/**
Tries to set allowHapticsAndSystemSoundsDuringRecording and ignore errors.
*/
func trySetAllowHaptics(_ allowHaptics: Bool) {
if #available(iOS 13.0, *) {
if !self.allowHapticsAndSystemSoundsDuringRecording {
try? self.setAllowHapticsAndSystemSoundsDuringRecording(allowHaptics)
}
}
}
}

1
package/ios/Extensions/AVCaptureConnection+setInterfaceOrientation.swift
View File

@ -8,6 +8,7 @@
import AVFoundation
import Foundation
import UIKit
extension AVCaptureConnection {
/**

8
package/ios/Extensions/AVCaptureDevice+toDictionary.swift
View File

@ -10,6 +10,8 @@ import AVFoundation
extension AVCaptureDevice {
func toDictionary() -> [String: Any] {
let formats = formats.map { CameraDeviceFormat(fromFormat: $0) }
return [
"id": uniqueID,
"physicalDevices": physicalDevices.map(\.deviceType.physicalDeviceDescriptor),
@ -25,10 +27,8 @@ extension AVCaptureDevice {
"supportsLowLightBoost": isLowLightBoostSupported,
"supportsFocus": isFocusPointOfInterestSupported,
"hardwareLevel": "full",
"sensorOrientation": "portrait", // TODO: Sensor Orientation?
"formats": formats.map { format -> [String: Any] in
format.toDictionary()
},
"sensorOrientation": Orientation.landscapeLeft.jsValue,
"formats": formats.map { $0.toJSValue() },
]
}
}

65
package/ios/Extensions/AVCaptureDevice.Format+toDictionary.swift
View File

@ -8,27 +8,20 @@
import AVFoundation
private func getAllVideoStabilizationModes() -> [AVCaptureVideoStabilizationMode] {
var modes: [AVCaptureVideoStabilizationMode] = [.auto, .cinematic, .off, .standard]
if #available(iOS 13, *) {
modes.append(.cinematicExtended)
}
return modes
}
extension AVCaptureDevice.Format {
var videoStabilizationModes: [AVCaptureVideoStabilizationMode] {
return getAllVideoStabilizationModes().filter { self.isVideoStabilizationModeSupported($0) }
let allModes = AVCaptureDevice.Format.getAllVideoStabilizationModes()
return allModes.filter { self.isVideoStabilizationModeSupported($0) }
}
var minFrameRate: Float64 {
var minFps: Float64 {
let maxRange = videoSupportedFrameRateRanges.max { l, r in
return l.maxFrameRate < r.maxFrameRate
}
return maxRange?.maxFrameRate ?? 0
}
var maxFrameRate: Float64 {
var maxFps: Float64 {
let maxRange = videoSupportedFrameRateRanges.max { l, r in
return l.maxFrameRate < r.maxFrameRate
}
@ -45,52 +38,20 @@ extension AVCaptureDevice.Format {
return hdrFormats.contains(pixelFormat)
}
func toDictionary() -> [String: AnyHashable] {
let availablePixelFormats = AVCaptureVideoDataOutput().availableVideoPixelFormatTypes
let pixelFormats = availablePixelFormats.map { format in PixelFormat(mediaSubType: format) }
return [
"videoStabilizationModes": videoStabilizationModes.map(\.descriptor),
"autoFocusSystem": autoFocusSystem.descriptor,
"photoHeight": photoDimensions.height,
"photoWidth": photoDimensions.width,
"videoHeight": videoDimensions.height,
"videoWidth": videoDimensions.width,
"maxISO": maxISO,
"minISO": minISO,
"fieldOfView": videoFieldOfView,
"maxZoom": videoMaxZoomFactor,
"supportsVideoHDR": supportsVideoHDR,
"supportsPhotoHDR": false,
"minFps": minFrameRate,
"maxFps": maxFrameRate,
"pixelFormats": pixelFormats.map(\.unionValue),
"supportsDepthCapture": !supportedDepthDataFormats.isEmpty,
]
}
/**
Compares this format to the given JS `CameraDeviceFormat`.
Only the most important properties (such as dimensions and FPS) are taken into consideration,
so this is not an exact equals, but more like a "matches filter" comparison.
*/
func isEqualTo(jsFormat dict: NSDictionary) -> Bool {
guard dict["photoWidth"] as? Int32 == photoDimensions.width && dict["photoHeight"] as? Int32 == photoDimensions.height else {
var supportsPhotoHDR: Bool {
// TODO: Supports Photo HDR on iOS?
return false
}
guard dict["videoWidth"] as? Int32 == videoDimensions.width && dict["videoHeight"] as? Int32 == videoDimensions.height else {
return false
var supportsDepthCapture: Bool {
return !supportedDepthDataFormats.isEmpty
}
guard dict["minFps"] as? Float64 == minFrameRate && dict["maxFps"] as? Float64 == maxFrameRate else {
return false
private static func getAllVideoStabilizationModes() -> [AVCaptureVideoStabilizationMode] {
var modes: [AVCaptureVideoStabilizationMode] = [.auto, .cinematic, .off, .standard]
if #available(iOS 13, *) {
modes.append(.cinematicExtended)
}
guard dict["supportsVideoHDR"] as? Bool == supportsVideoHDR else {
return false
}
return true
return modes
}
}

52
package/ios/Extensions/AVCaptureOutput+mirror.swift Normal file
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@ -0,0 +1,52 @@
//
// AVCaptureOutput+mirror.swift
// mrousavy
//
// Created by Marc Rousavy on 18.01.21.
// Copyright © 2021 mrousavy. All rights reserved.
//
import AVFoundation
extension AVCaptureOutput {
/**
Mirrors the video output if possible.
*/
func mirror() {
connections.forEach { connection in
if connection.isVideoMirroringSupported {
connection.automaticallyAdjustsVideoMirroring = false
connection.isVideoMirrored = true
}
}
}
/**
Sets the target orientation of the video output.
This does not always physically rotate image buffers.
- For Preview, an orientation hint is used to rotate the layer/view itself.
- For Photos, an EXIF tag is used.
- For Videos, the buffers are physically rotated if available, since we use an AVCaptureVideoDataOutput instead of an AVCaptureMovieFileOutput.
*/
func setOrientation(_ orientation: Orientation) {
// Camera Sensors are always in 90deg rotation.
// We are setting the target rotation here, so we need to rotate by 90deg once.
let cameraOrientation = orientation.rotateRight()
// Set orientation for each connection
connections.forEach { connection in
// TODO: Use this once Xcode 15 is rolled out
// if #available(iOS 17.0, *) {
// let degrees = cameraOrientation.toDegrees()
// if connection.isVideoRotationAngleSupported(degrees) {
// connection.videoRotationAngle = degrees
// }
// } else {
if connection.isVideoOrientationSupported {
connection.videoOrientation = cameraOrientation.toAVCaptureVideoOrientation()
}
// }
}
}
}

20
package/ios/Extensions/AVCapturePhotoOutput+mirror.swift
View File

@ -1,20 +0,0 @@
//
// AVCapturePhotoOutput+mirror.swift
// mrousavy
//
// Created by Marc Rousavy on 18.01.21.
// Copyright © 2021 mrousavy. All rights reserved.
//
import AVFoundation
extension AVCapturePhotoOutput {
func mirror() {
connections.forEach { connection in
if connection.isVideoMirroringSupported {
connection.automaticallyAdjustsVideoMirroring = false
connection.isVideoMirrored = true
}
}
}
}

26
package/ios/Extensions/AVCaptureVideoDataOutput+pixelFormat.swift Normal file
View File

@ -0,0 +1,26 @@
//
// AVCaptureVideoDataOutput+pixelFormat.swift
// VisionCamera
//
// Created by Marc Rousavy on 12.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
extension AVCaptureVideoDataOutput {
/**
Gets or sets the PixelFormat this output streams in.
By default, the first item in `availableVideoPixelFormatTypes` is chosen.
*/
var pixelFormat: OSType {
get {
let current = videoSettings[String(kCVPixelBufferPixelFormatTypeKey)] as? OSType
return current ?? availableVideoPixelFormatTypes.first!
}
set {
videoSettings[String(kCVPixelBufferPixelFormatTypeKey)] = newValue
}
}
}

31
package/ios/Parsers/UIInterfaceOrientation+descriptor.swift
View File

@ -1,31 +0,0 @@
//
// UIInterfaceOrientation+descriptor.swift
// VisionCamera
//
// Created by Marc Rousavy on 04.01.22.
// Copyright © 2022 mrousavy. All rights reserved.
//
import Foundation
import UIKit
extension UIInterfaceOrientation {
init(withString string: String) throws {
switch string {
case "portrait":
self = .portrait
return
case "portrait-upside-down":
self = .portraitUpsideDown
return
case "landscape-left":
self = .landscapeLeft
return
case "landscape-right":
self = .landscapeRight
return
default:
throw EnumParserError.invalidValue
}
}
}

41
package/ios/Types/AutoFocusSystem.swift Normal file
View File

@ -0,0 +1,41 @@
//
// AutoFocusSystem.swift
// VisionCamera
//
// Created by Marc Rousavy on 13.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
enum AutoFocusSystem: String, JSUnionValue {
case contrastDetection = "contrast-detection"
case phaseDetection
case none
init(jsValue: String) throws {
if let parsed = AutoFocusSystem(rawValue: jsValue) {
self = parsed
} else {
throw CameraError.parameter(.invalid(unionName: "autoFocusSystem", receivedValue: jsValue))
}
}
init(fromFocusSystem focusSystem: AVCaptureDevice.Format.AutoFocusSystem) {
switch focusSystem {
case .none:
self = .none
case .contrastDetection:
self = .contrastDetection
case .phaseDetection:
self = .phaseDetection
@unknown default:
self = .none
}
}
var jsValue: String {
return rawValue
}
}

119
package/ios/Types/CameraDeviceFormat.swift Normal file
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@ -0,0 +1,119 @@
//
// CameraDeviceFormat.swift
// VisionCamera
//
// Created by Marc Rousavy on 13.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
/**
A serializable representation of [AVCaptureDevice.Format]
*/
struct CameraDeviceFormat: Equatable, CustomStringConvertible {
let videoWidth: Int
let videoHeight: Int
let photoWidth: Int
let photoHeight: Int
let minFps: Double
let maxFps: Double
let minISO: Float
let maxISO: Float
let fieldOfView: Float
let maxZoom: Double
let videoStabilizationModes: [VideoStabilizationMode]
let autoFocusSystem: AutoFocusSystem
let supportsVideoHDR: Bool
let supportsPhotoHDR: Bool
let pixelFormats: [PixelFormat]
let supportsDepthCapture: Bool
init(fromFormat format: AVCaptureDevice.Format) {
videoWidth = Int(format.videoDimensions.width)
videoHeight = Int(format.videoDimensions.height)
photoWidth = Int(format.photoDimensions.width)
photoHeight = Int(format.photoDimensions.height)
minFps = format.minFps
maxFps = format.maxFps
minISO = format.minISO
maxISO = format.maxISO
fieldOfView = format.videoFieldOfView
maxZoom = format.videoMaxZoomFactor
videoStabilizationModes = format.videoStabilizationModes.map { VideoStabilizationMode(from: $0) }
autoFocusSystem = AutoFocusSystem(fromFocusSystem: format.autoFocusSystem)
supportsVideoHDR = format.supportsVideoHDR
supportsPhotoHDR = format.supportsPhotoHDR
pixelFormats = CameraDeviceFormat.getAllPixelFormats()
supportsDepthCapture = format.supportsDepthCapture
}
init(jsValue: NSDictionary) throws {
// swiftlint:disable force_cast
videoWidth = jsValue["videoWidth"] as! Int
videoHeight = jsValue["videoHeight"] as! Int
photoWidth = jsValue["photoWidth"] as! Int
photoHeight = jsValue["photoHeight"] as! Int
minFps = jsValue["minFps"] as! Double
maxFps = jsValue["maxFps"] as! Double
minISO = jsValue["minISO"] as! Float
maxISO = jsValue["maxISO"] as! Float
fieldOfView = jsValue["fieldOfView"] as! Float
maxZoom = jsValue["maxZoom"] as! Double
let jsVideoStabilizationModes = jsValue["videoStabilizationModes"] as! [String]
videoStabilizationModes = try jsVideoStabilizationModes.map { try VideoStabilizationMode(jsValue: $0) }
let jsAutoFocusSystem = jsValue["autoFocusSystem"] as! String
autoFocusSystem = try AutoFocusSystem(jsValue: jsAutoFocusSystem)
supportsVideoHDR = jsValue["supportsVideoHDR"] as! Bool
supportsPhotoHDR = jsValue["supportsPhotoHDR"] as! Bool
let jsPixelFormats = jsValue["pixelFormats"] as! [String]
pixelFormats = try jsPixelFormats.map { try PixelFormat(jsValue: $0) }
supportsDepthCapture = jsValue["supportsDepthCapture"] as! Bool
// swiftlint:enable force_cast
}
func isEqualTo(format other: AVCaptureDevice.Format) -> Bool {
let other = CameraDeviceFormat(fromFormat: other)
return self == other
}
func toJSValue() -> NSDictionary {
return [
"videoStabilizationModes": videoStabilizationModes.map(\.jsValue),
"autoFocusSystem": autoFocusSystem.jsValue,
"photoHeight": photoHeight,
"photoWidth": photoWidth,
"videoHeight": videoHeight,
"videoWidth": videoWidth,
"maxISO": maxISO,
"minISO": minISO,
"fieldOfView": fieldOfView,
"maxZoom": maxZoom,
"supportsVideoHDR": supportsVideoHDR,
"supportsPhotoHDR": supportsPhotoHDR,
"minFps": minFps,
"maxFps": maxFps,
"pixelFormats": pixelFormats.map(\.jsValue),
"supportsDepthCapture": supportsDepthCapture,
]
}
var description: String {
return "\(photoWidth)x\(photoHeight) | \(videoWidth)x\(videoHeight)@\(maxFps) (ISO: \(minISO)..\(maxISO), Pixel Formats: \(pixelFormats))"
}
// On iOS, all PixelFormats are always supported for every format (it can convert natively)
private static func getAllPixelFormats() -> [PixelFormat] {
let availablePixelFormats = AVCaptureVideoDataOutput().availableVideoPixelFormatTypes
return availablePixelFormats.map { format in PixelFormat(mediaSubType: format) }
}
}

2
package/ios/Types/CodeScanner.swift
View File

@ -9,7 +9,7 @@
import AVFoundation
import Foundation
class CodeScanner {
struct CodeScanner: Equatable {
let codeTypes: [AVMetadataObject.ObjectType]
let interval: Int
let regionOfInterest: CGRect?

15
package/ios/Types/JSUnionValue.swift Normal file
View File

@ -0,0 +1,15 @@
//
// JSUnionValue.swift
// VisionCamera
//
// Created by Marc Rousavy on 13.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import Foundation
protocol JSUnionValue {
init(jsValue: String) throws
var jsValue: String { get }
}

83
package/ios/Types/Orientation.swift Normal file
View File

@ -0,0 +1,83 @@
//
// Orientation.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
/**
The Orientation used for the Preview, Photo, Video and Frame Processor outputs.
*/
enum Orientation: String, JSUnionValue {
/**
Phone is in upright portrait mode, home button/indicator is at the bottom
*/
case portrait
/**
Phone is in landscape mode, home button/indicator is on the left
*/
case landscapeLeft = "landscape-left"
/**
Phone is in upside-down portrait mode, home button/indicator is at the top
*/
case portraitUpsideDown = "portrait-upside-down"
/**
Phone is in landscape mode, home button/indicator is on the right
*/
case landscapeRight = "landscape-right"
init(jsValue: String) throws {
if let parsed = Orientation(rawValue: jsValue) {
self = parsed
} else {
throw CameraError.parameter(.invalid(unionName: "orientation", receivedValue: jsValue))
}
}
var jsValue: String {
return rawValue
}
func toAVCaptureVideoOrientation() -> AVCaptureVideoOrientation {
switch self {
case .portrait:
return .portrait
case .landscapeLeft:
return .landscapeLeft
case .portraitUpsideDown:
return .portraitUpsideDown
case .landscapeRight:
return .landscapeRight
}
}
func toDegrees() -> Double {
switch self {
case .portrait:
return 0
case .landscapeLeft:
return 90
case .portraitUpsideDown:
return 180
case .landscapeRight:
return 270
}
}
func rotateRight() -> Orientation {
switch self {
case .portrait:
return .landscapeLeft
case .landscapeLeft:
return .portraitUpsideDown
case .portraitUpsideDown:
return .landscapeRight
case .landscapeRight:
return .portrait
}
}
}

32
package/ios/Parsers/PixelFormat.swift → package/ios/Types/PixelFormat.swift
View File

@ -9,38 +9,22 @@
import AVFoundation
import Foundation
enum PixelFormat {
enum PixelFormat: String, JSUnionValue {
case yuv
case rgb
case native
case unknown
var unionValue: String {
switch self {
case .yuv:
return "yuv"
case .rgb:
return "rgb"
case .native:
return "native"
case .unknown:
return "unknown"
init(jsValue: String) throws {
if let parsed = PixelFormat(rawValue: jsValue) {
self = parsed
} else {
throw CameraError.parameter(.invalid(unionName: "pixelFormat", receivedValue: jsValue))
}
}
init(unionValue: String) throws {
switch unionValue {
case "yuv":
self = .yuv
case "rgb":
self = .rgb
case "native":
self = .native
case "unknown":
self = .unknown
default:
throw CameraError.parameter(.invalid(unionName: "pixelFormat", receivedValue: unionValue))
}
var jsValue: String {
return rawValue
}
init(mediaSubType: OSType) {

30
package/ios/Types/RecordVideoOptions.swift Normal file
View File

@ -0,0 +1,30 @@
//
// RecordVideoOptions.swift
// VisionCamera
//
// Created by Marc Rousavy on 12.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
struct RecordVideoOptions {
var fileType: AVFileType = .mov
var flash: Torch = .off
var codec: AVVideoCodecType?
/**
Bit-Rate of the Video, in Megabits per second (Mbps)
*/
var bitRate: Double?
init(fromJSValue dictionary: NSDictionary) throws {
// File Type (.mov or .mp4)
if let fileTypeOption = dictionary["fileType"] as? String {
guard let parsed = try? AVFileType(withString: fileTypeOption) else {
throw CameraError.parameter(.invalid(unionName: "fileType", receivedValue: fileTypeOption))
}
fileType = parsed
}
}
}

21
package/ios/Types/ResizeMode.swift
View File

@ -6,12 +6,13 @@
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
/**
A ResizeMode used for the PreviewView.
*/
enum ResizeMode {
enum ResizeMode: String, JSUnionValue {
/**
Keep aspect ratio, but fill entire parent view (centered).
*/
@ -21,15 +22,15 @@ enum ResizeMode {
*/
case contain
init(fromTypeScriptUnion union: String) {
switch union {
case "cover":
self = .cover
case "contain":
self = .contain
default:
// TODO: Use the onError event for safer error handling!
fatalError("Invalid value passed for resizeMode! (\(union))")
init(jsValue: String) throws {
if let parsed = ResizeMode(rawValue: jsValue) {
self = parsed
} else {
throw CameraError.parameter(.invalid(unionName: "resizeMode", receivedValue: jsValue))
}
}
var jsValue: String {
return rawValue
}
}

45
package/ios/Types/Torch.swift Normal file
View File

@ -0,0 +1,45 @@
//
// Torch.swift
// VisionCamera
//
// Created by Marc Rousavy on 11.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
/**
A Torch used for permanent flash.
*/
enum Torch: String, JSUnionValue {
/**
Torch (flash unit) is always off.
*/
case off
/**
Torch (flash unit) is always on.
*/
case on
init(jsValue: String) throws {
if let parsed = Torch(rawValue: jsValue) {
self = parsed
} else {
throw CameraError.parameter(.invalid(unionName: "torch", receivedValue: jsValue))
}
}
var jsValue: String {
return rawValue
}
func toTorchMode() -> AVCaptureDevice.TorchMode {
switch self {
case .on:
return .on
case .off:
return .off
}
}
}

28
package/ios/Types/Video.swift Normal file
View File

@ -0,0 +1,28 @@
//
// Video.swift
// VisionCamera
//
// Created by Marc Rousavy on 12.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
struct Video {
/**
Path to the temporary video file
*/
var path: String
/**
Duration of the recorded video (in seconds)
*/
var duration: Double
func toJSValue() -> NSDictionary {
return [
"path": path,
"duration": duration,
]
}
}

47
package/ios/Types/VideoStabilizationMode.swift Normal file
View File

@ -0,0 +1,47 @@
//
// VideoStabilizationMode.swift
// VisionCamera
//
// Created by Marc Rousavy on 13.10.23.
// Copyright © 2023 mrousavy. All rights reserved.
//
import AVFoundation
import Foundation
enum VideoStabilizationMode: String, JSUnionValue {
case off
case standard
case cinematic
case cinematicExtended = "cinematic-extended"
case auto
init(jsValue: String) throws {
if let parsed = VideoStabilizationMode(rawValue: jsValue) {
self = parsed
} else {
throw CameraError.parameter(.invalid(unionName: "videoStabilizationMode", receivedValue: jsValue))
}
}
init(from mode: AVCaptureVideoStabilizationMode) {
switch mode {
case .off:
self = .off
case .standard:
self = .standard
case .cinematic:
self = .cinematic
case .cinematicExtended:
self = .cinematicExtended
case .auto:
self = .auto
default:
self = .off
}
}
var jsValue: String {
return rawValue
}
}

136
package/ios/VisionCamera.xcodeproj/project.pbxproj
View File

@ -16,16 +16,25 @@
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@ -34,7 +43,7 @@
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@ -50,21 +59,23 @@
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@ -98,16 +109,25 @@
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@ -117,7 +137,7 @@
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@ -133,7 +153,6 @@
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