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fix: Fix torch not working on iOS (#2031)

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* fix: Fix `torch` not working on iOS

* Format

* fix: Use `withSessionLock` and `withDeviceLock`

* Update CameraSession.swift

* Update RecordingSession.swift
This commit is contained in:
Marc Rousavy
2023-10-18 18:04:58 +02:00
committed by GitHub
parent 6956fded2d
commit 89dfd351e0
4 changed files with 90 additions and 55 deletions
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5
package/ios/Core/CameraConfiguration.swift
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@@ -70,6 +70,7 @@ class CameraConfiguration {
let orientationChanged: Bool
let formatChanged: Bool
let sidePropsChanged: Bool
let torchChanged: Bool
let zoomChanged: Bool
let audioSessionChanged: Bool
@@ -100,7 +101,9 @@ class CameraConfiguration {
// 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
sidePropsChanged = formatChanged || left?.fps != right.fps || left?.enableLowLightBoost != right.enableLowLightBoost
// torch (depends on isActive)
torchChanged = left?.isActive != right.isActive || left?.torch != right.torch
// zoom (depends on format)
zoomChanged = formatChanged || left?.zoom != right.zoom

25
package/ios/Core/CameraSession+Configuration.swift
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@@ -175,16 +175,13 @@ extension CameraSession {
/**
Configures the active format (`format`)
*/
func configureFormat(configuration: CameraConfiguration) throws {
func configureFormat(configuration: CameraConfiguration, device: AVCaptureDevice) 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 {
@@ -207,13 +204,9 @@ extension CameraSession {
// pragma MARK: Side-Props
/**
Configures format-dependant "side-props" (`fps`, `lowLightBoost`, `torch`)
Configures format-dependant "side-props" (`fps`, `lowLightBoost`)
*/
func configureSideProps(configuration: CameraConfiguration) throws {
guard let device = videoDeviceInput?.device else {
throw CameraError.session(.cameraNotReady)
}
func configureSideProps(configuration: CameraConfiguration, device: AVCaptureDevice) throws {
// Configure FPS
if let fps = configuration.fps {
let supportsGivenFps = device.activeFormat.videoSupportedFrameRateRanges.contains { range in
@@ -238,13 +231,20 @@ extension CameraSession {
}
device.automaticallyEnablesLowLightBoostWhenAvailable = configuration.enableLowLightBoost
}
}
/**
Configures the torch.
The CaptureSession has to be running for the Torch to work.
*/
func configureTorch(configuration: CameraConfiguration, device: AVCaptureDevice) throws {
// Configure Torch
let torchMode = configuration.torch.toTorchMode()
if device.torchMode != torchMode {
guard device.hasTorch else {
throw CameraError.device(.flashUnavailable)
}
device.torchMode = torchMode
if torchMode == .on {
try device.setTorchModeOn(level: 1.0)
@@ -257,10 +257,7 @@ extension CameraSession {
/**
Configures zoom (`zoom`)
*/
func configureZoom(configuration: CameraConfiguration) throws {
guard let device = videoDeviceInput?.device else {
throw CameraError.session(.cameraNotReady)
}
func configureZoom(configuration: CameraConfiguration, device: AVCaptureDevice) {
guard let zoom = configuration.zoom else {
return
}

109
package/ios/Core/CameraSession.swift
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@@ -114,56 +114,50 @@ class CameraSession: NSObject, AVCaptureVideoDataOutputSampleBufferDelegate, AVC
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)
try self.withSessionLock {
// 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)
}
}
// 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)
try self.withDeviceLock { device in
// 4. Configure format
if difference.formatChanged {
try self.configureFormat(configuration: config, device: device)
}
// 5. Configure side-props (fps, lowLightBoost)
if difference.sidePropsChanged {
try self.configureSideProps(configuration: config, device: device)
}
// 6. Configure zoom
if difference.zoomChanged {
self.configureZoom(configuration: config, device: device)
}
}
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
// 7. Start or stop the session if needed
self.checkIsActive(configuration: config)
// 8. Enable or disable the Torch if needed (requires session to be running)
if difference.torchChanged {
try self.withDeviceLock { device in
try self.configureTorch(configuration: config, device: device)
}
}
// Update successful, set the new configuration!
self.configuration = config
} catch {
@@ -191,6 +185,41 @@ class CameraSession: NSObject, AVCaptureVideoDataOutputSampleBufferDelegate, AVC
}
}
/**
Runs the given [lambda] under an AVCaptureSession configuration lock (`beginConfiguration()`)
*/
private func withSessionLock(_ lambda: () throws -> Void) throws {
// Lock Capture Session for configuration
ReactLogger.log(level: .info, message: "Beginning CameraSession configuration...")
captureSession.beginConfiguration()
defer {
// Unlock Capture Session again and submit configuration to Hardware
self.captureSession.commitConfiguration()
ReactLogger.log(level: .info, message: "Committed CameraSession configuration!")
}
// Call lambda
try lambda()
}
/**
Runs the given [lambda] under an AVCaptureDevice configuration lock (`lockForConfiguration()`)
*/
private func withDeviceLock(_ lambda: (_ device: AVCaptureDevice) throws -> Void) throws {
guard let device = videoDeviceInput?.device else {
throw CameraError.session(.cameraNotReady)
}
ReactLogger.log(level: .info, message: "Beginning CaptureDevice configuration...")
try device.lockForConfiguration()
defer {
device.unlockForConfiguration()
ReactLogger.log(level: .info, message: "Committed CaptureDevice configuration!")
}
// Call lambda with Device
try lambda(device)
}
/**
Starts or stops the CaptureSession if needed (`isActive`)
*/

6
package/ios/Core/RecordingSession.swift
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@@ -36,10 +36,16 @@ class RecordingSession {
private var hasWrittenFirstVideoFrame = false
private var isFinishing = false
/**
Gets the file URL of the recorded video.
*/
var url: URL {
return assetWriter.outputURL
}
/**
Get the duration (in seconds) of the recorded video.
*/
var duration: Double {
guard let latestTimestamp = latestTimestamp,
let initialTimestamp = initialTimestamp else {