I tried several different methods but they didn't help me. I want to change video orientation in AVFoundation. How can I make it?
override func viewDidLoad() {
super.viewDidLoad()
self.definesPresentationContext = true
// device capture for audio and video
let captureVideo = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeVideo)
let captureAudio = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeAudio)
// input
let audioInput = try! AVCaptureDeviceInput(device: captureAudio)
let videoInput = try! AVCaptureDeviceInput(device: captureVideo)
let capturePreview = AVCaptureVideoPreviewLayer(session: captureSession)
capturePreview.frame = self.view.frame
capturePreview.videoGravity = AVLayerVideoGravityResizeAspect
self.view.layer.addSublayer(capturePreview)
// setting of session
captureSession.beginConfiguration()
if captureSession.canAddInput(audioInput) {
captureSession.addInput(audioInput)
}
if captureSession.canAddInput(videoInput) {
captureSession.addInput(videoInput)
}
// output
movieOutput.movieFragmentInterval = kCMTimeInvalid
if captureSession.canAddOutput(movieOutput) {
captureSession.addOutput(movieOutput)
print("added moview")
}
captureSession.sessionPreset = AVCaptureSessionPresetHigh
captureSession.commitConfiguration()
captureSession.startRunning()
}
#IBAction func startStopSession(sender: UIBarButtonItem) {
if movieOutput.recording {
movieOutput.stopRecording()
} else {
print("start recording")
captureSession.beginConfiguration()
for connection in movieOutput.connections as! [AVCaptureConnection] {
for port in connection.inputPorts as! [AVCaptureInputPort] {
print(port)
if port.mediaType == AVMediaTypeVideo {
print(port)
self.captureConnection = AVCaptureConnection(inputPorts: [port], output: movieOutput)
if self.captureConnection.supportsVideoOrientation {
self.captureConnection.videoOrientation = AVCaptureVideoOrientation.LandscapeRight
print("video orientation right")
}
}
}
}
if self.captureConnection.supportsVideoStabilization {
captureConnection.preferredVideoStabilizationMode = .Cinematic
print("true video stabilization")
}
let digit = returnFileDigit()
let path = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).last!.path!.stringByAppendingString("/movie-\(digit).mp4")
captureSession.commitConfiguration()
let url = NSURL(fileURLWithPath: path)
print(movieOutput.connections)
movieOutput.startRecordingToOutputFileURL(url, recordingDelegate: self)
}
}
I tried it that I can to find outputs but I don't know how change orientation
for output in captureSession.outputs as! [AVCaptureOutput] {
output.connections.first?.mediaType
for var connection in output.connections {
if connection.mediaType == AVMediaTypeVideo {
print(connection.mediaType)
connection.videoOrientation = .LandscapeRight
}
}
}
I change my code and it works for me
#IBAction func startStopSession(sender: UIBarButtonItem) {
if movieOutput.recording {
movieOutput.stopRecording()
} else {
print("start recording")
movieOutput.connectionWithMediaType(AVMediaTypeVideo).videoOrientation = returnedOrientation()
if movieOutput.connectionWithMediaType(AVMediaTypeVideo).supportsVideoStabilization {
movieOutput.connectionWithMediaType(AVMediaTypeVideo).preferredVideoStabilizationMode = .Cinematic
}
let digit = returnFileDigit()
let path = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).last!.path!.stringByAppendingString("/movie-\(digit).mp4")
let url = NSURL(fileURLWithPath: path)
movieOutput.startRecordingToOutputFileURL(url, recordingDelegate: self)
}
}
func returnedOrientation() -> AVCaptureVideoOrientation {
var videoOrientation: AVCaptureVideoOrientation!
let orientation = UIDevice.currentDevice().orientation
switch orientation {
case .Portrait:
videoOrientation = .Portrait
userDefault.setInteger(0, forKey: "CaptureVideoOrientation")
case .PortraitUpsideDown:
videoOrientation = .PortraitUpsideDown
userDefault.setInteger(1, forKey: "CaptureVideoOrientation")
case .LandscapeLeft:
videoOrientation = .LandscapeRight
userDefault.setInteger(2, forKey: "CaptureVideoOrientation")
case .LandscapeRight:
videoOrientation = .LandscapeLeft
userDefault.setInteger(3, forKey: "CaptureVideoOrientation")
case .FaceDown, .FaceUp, .Unknown:
let digit = userDefault.integerForKey("CaptureVideoOrientation")
videoOrientation = AVCaptureVideoOrientation.init(rawValue: digit)
}
return videoOrientation
}
Related
I have a Swift project where I am using a UIImageView to show a live preview capture and 'freeze' this image whenever the uses clicks on a 'Take' photo button and have this shown in another UIImageView with identical dimensions and position.
This works great on devices that are able to use builtInDualCamera (such as a iPhone X) but on devices that rely on the fallback builtInWideAngleCamera (such as a 6th gen iPad Mini), the image appears cropped/zoomed in.
Can someone explain whether it is possible/how to get an image identical to the one shown in preview using the builtInDualCamera?
A minimal reproducible example can be found below (simply create a storyboard with 2 button and 2 UIImageViews and hook them up).
import UIKit
import AVFoundation
class ViewController: UIViewController, AVCaptureMetadataOutputObjectsDelegate, AVCapturePhotoCaptureDelegate {
#IBOutlet weak var cameraImageView: UIImageView!
#IBOutlet weak var userImageView: UIImageView!
var captureSession: AVCaptureSession? = AVCaptureSession()
var currentDevice: AVCaptureDevice?
var videoFileOutput: AVCaptureMovieFileOutput?
var cameraPreviewLayer: AVCaptureVideoPreviewLayer?
var cameraOutput : AVCapturePhotoOutput?
func setupCamSession(){
if #available(iOS 10.0, *) {
if let device = AVCaptureDevice.default(.builtInDualCamera, for: AVMediaType.video, position:.front) {
currentDevice = device
} else if let device = AVCaptureDevice.default(.builtInWideAngleCamera, for: AVMediaType.video, position: .front) {
currentDevice = device
}
} else {
// Fallback on earlier versions
let devices = AVCaptureDevice.devices().filter{ ($0 as AnyObject).hasMediaType(AVMediaType.video) && ($0 as AnyObject).position == AVCaptureDevice.Position.front }
if let captureDevice = devices.first {
currentDevice = captureDevice
}
}
if(currentDevice==nil)
{
print("failed")
return
}
else
{
captureSession?.sessionPreset = AVCaptureSession.Preset.medium
}
guard let captureDeviceInput = try? AVCaptureDeviceInput(device: currentDevice!) else {
return
}
if (captureSession?.canAddInput(captureDeviceInput))! {
captureSession?.addInput(captureDeviceInput)
cameraOutput = AVCapturePhotoOutput()
if (captureSession?.canAddOutput(cameraOutput!))! {
captureSession?.addOutput(cameraOutput!)
}
}
else
{
print("failed")
return
}
}
func startCamSession()
{
if (captureSession==nil)
{
print("Warning: no captureSession detected")
return
}
cameraPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession!)
cameraPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspect
cameraPreviewLayer?.frame = cameraImageView.bounds
cameraImageView.layer.addSublayer(cameraPreviewLayer!)
if let connection = cameraPreviewLayer?.connection {
let previewLayerConnection : AVCaptureConnection = connection
if previewLayerConnection.isVideoOrientationSupported {
previewLayerConnection.videoOrientation = .portrait
cameraPreviewLayer?.frame = cameraImageView.bounds
}
captureSession?.startRunning()
}
}
func stopCamSession()
{
captureSession?.stopRunning()
}
func photoOutput(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhoto photoSampleBuffer: CMSampleBuffer?, previewPhoto previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings, bracketSettings: AVCaptureBracketedStillImageSettings?, error: Error?) {
if let error = error {
print(error.localizedDescription)
}
if let sampleBuffer = photoSampleBuffer, let previewBuffer = previewPhotoSampleBuffer {
let imageData = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: sampleBuffer, previewPhotoSampleBuffer: previewBuffer)
let dataProvider = CGDataProvider(data: imageData! as CFData)
let cgImageRef = CGImage(jpegDataProviderSource: dataProvider!, decode: nil, shouldInterpolate: true, intent: CGColorRenderingIntent.absoluteColorimetric)
let image = UIImage(cgImage: cgImageRef!, scale: 1.0, orientation: UIImage.Orientation.leftMirrored)
self.userImageView.contentMode = .scaleAspectFit
self.userImageView.image = image
cameraPreviewLayer?.removeFromSuperlayer()
self.stopCamSession()
} else {
}
}
override func viewDidLoad() {
super.viewDidLoad()
setupCamSession()
}
#IBAction func startPressed(_ sender: Any) {
startCamSession()
}
#IBAction func takePhotoPressed(_ sender: Any) {
let settings = AVCapturePhotoSettings()
let previewPixelType = settings.availablePreviewPhotoPixelFormatTypes.first!
let previewFormat = [
kCVPixelBufferPixelFormatTypeKey as String : previewPixelType,
kCVPixelBufferWidthKey as String : 640,
kCVPixelBufferHeightKey as String : 480
]
settings.previewPhotoFormat = previewFormat
cameraOutput?.capturePhoto(with: settings, delegate: self)
}
}
I would like to implement a camera to capture portrait photos like apples default camera does. Portraiteffect and depnhdata is enabled in the PhotoSettings.
AVCapturePhotoSettings
self.output.isPortraitEffectsMatteDeliveryEnabled = true
self.output.isDepthDataDeliveryEnabled = true
photoSettings.isPortraitEffectsMatteDeliveryEnabled = true
photoSettings.isDepthDataDeliveryEnabled = true
photoSettings.embedsDepthDataInPhoto = true
photoSettings.embedsPortraitEffectsMatteInPhoto = true
printing the AVCapturePhoto.portraitEffectsMatte returns Optional(L008 2080x1170 v.1.1) but neither in my preview layer nor in the saved image is the portrait effect visible.
Additional context
AVCaptureDevice uses the builtInDualWideCamera
Printing the output.portraitEffekt logs also true
Full code:
class ViewController: UIViewController {
var session: AVCaptureSession?
var output = AVCapturePhotoOutput()
var previewLayer = AVCaptureVideoPreviewLayer()
private func setUpCamera(){
let session = AVCaptureSession()
if let device = AVCaptureDevice.default(.builtInDualWideCamera, for: .video, position: (useFrontCamera ? AVCaptureDevice.Position.front : AVCaptureDevice.Position.back)){
do {
let input = try AVCaptureDeviceInput(device: device)
if session.canAddInput(input){
session.addInput(input)
}
if session.canAddOutput(output){
session.addOutput(output)
}
previewLayer.videoGravity = .resizeAspectFill
previewLayer.session = session
session.startRunning()
self.session = session
}
catch {
print(error)
}
}
}
private func getSettings() -> AVCapturePhotoSettings{
var photoSettings = AVCapturePhotoSettings()
if(self.output.isPortraitEffectsMatteDeliverySupported && self.output.isDepthDataDeliverySupported){
self.output.isPortraitEffectsMatteDeliveryEnabled = true
self.output.isDepthDataDeliveryEnabled = true
photoSettings.isPortraitEffectsMatteDeliveryEnabled = true
photoSettings.isDepthDataDeliveryEnabled = true
photoSettings.embedsDepthDataInPhoto = true
photoSettings.embedsPortraitEffectsMatteInPhoto = true
}
return photoSettings
}
private funk takePhoto(){
self.output.capturePhoto(with: self.getSettings(), delegate: self)
}
}
extension ViewController: AVCapturePhotoCaptureDelegate {
func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) {
guard let data = photo.fileDataRepresentation() else { return}
let image = UIImage(data: data)
let imageView = UIImageView(image: image)
session?.stopRunning()
imageView.contentMode = .scaleAspectFill
imageView.frame = CGRect(x: 0, y: 0, width: view.frame.width/4, height: view.frame.height/4)
imageView.layer.name = "photoPreview"
view.addSubview(imageView)
UIImageWriteToSavedPhotosAlbum(image!, self, nil, nil)
}
}
```
In my scenario, I am trying to create a custom CameraView. Here, Pinch Zoom In and Zoom Out are not working. How do I fix this?
Below is my code:
#IBAction func pinchToZoom(_ sender: UIPinchGestureRecognizer) {
guard let device = captureDevice else { return }
func minMaxZoom(_ factor: CGFloat) -> CGFloat { return min(max(factor, 1.0), device.activeFormat.videoMaxZoomFactor) }
func update(scale factor: CGFloat) {
do {
try device.lockForConfiguration()
defer { device.unlockForConfiguration() }
device.videoZoomFactor = factor
} catch {
debugPrint(error)
}
}
let newScaleFactor = minMaxZoom(pinch.scale * zoomFactor)
switch sender.state {
case .began: fallthrough
case .changed: update(scale: newScaleFactor)
case .ended:
zoomFactor = minMaxZoom(newScaleFactor)
update(scale: zoomFactor)
default: break
}
}
Here, Below Answer Working fine for CamerView ZoomIn and ZoomOut.
#IBAction func pinchToZoom(_ sender: UIPinchGestureRecognizer) {
let captureSession = AVCaptureSession()
captureSession.sessionPreset = AVCaptureSession.Preset.photo
let captureDevice = AVCaptureDevice.default(for: AVMediaType.video)
guard let device = captureDevice else { return }
if sender.state == .changed {
let maxZoomFactor = device.activeFormat.videoMaxZoomFactor
let pinchVelocityDividerFactor: CGFloat = 5.0
do {
try device.lockForConfiguration()
defer { device.unlockForConfiguration() }
let desiredZoomFactor = device.videoZoomFactor + atan2(sender.velocity, pinchVelocityDividerFactor)
device.videoZoomFactor = max(1.0, min(desiredZoomFactor, maxZoomFactor))
} catch {
print(error)
}
}
}
I am developing an application to record RGB-D sequences with the iPhone by using the DualRearCamera or the TrueDepthCamera. I can capture and visualize the RGB frame and depth frames and I developed a version where I can compress this data and save in the internal files of the iPhone. Nevertheless, my idea is to save both sequences (RGB and depth map sequences) in the gallery, but I am having problems to use AVAssetWritter and create a depth map video.
I am using the iPhone X, Xcode 10.2.1 and swift 5
import UIKit
import AVFoundation
import AssetsLibrary
var noMoreSpace = false
class ViewController: UIViewController{
#IBOutlet weak var previewView: UIImageView!
#IBOutlet weak var timeLabel: UILabel!
#IBOutlet weak var previewModeControl: UISegmentedControl!
let session = AVCaptureSession()
let dataOutputQueue = DispatchQueue(label: "video data queue")
let videoOutput = AVCaptureVideoDataOutput()
let movieOutput = AVCaptureMovieFileOutput()
let depthOutput = AVCaptureDepthDataOutput()
let depthCapture = DepthCapture()
var previewLayer = AVCaptureVideoPreviewLayer()
var inputDevice: AVCaptureDeviceInput!
let videoDeviceDiscoverySession = AVCaptureDevice.DiscoverySession(deviceTypes: [.builtInDualCamera, .builtInTrueDepthCamera], mediaType: .video, position: .unspecified)
var Timestamp: String {
let currentDate = NSDate()
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "ddMM_HHmmss"
return "\(dateFormatter.string(from: currentDate as Date))"
}
var isRecording = false
var time = 0
var timer = Timer()
enum PreviewMode: Int {
case original
case depth
}
var previewMode = PreviewMode.original
var depthMap: CIImage?
var scale: CGFloat = 0.0
//let sessionQueue = DispatchQueue(label: "session queue")
override func viewDidLoad() {
super.viewDidLoad()
timeLabel.isHidden = true //TODO: Disable the rest of the UI
previewMode = PreviewMode(rawValue: previewModeControl.selectedSegmentIndex) ?? .original
configureCaptureSession()
session.startRunning()
}
func configureCaptureSession() {
session.beginConfiguration()
let camera = AVCaptureDevice.default(.builtInTrueDepthCamera, for: .video, position: .unspecified)!
do {
let cameraInput = try AVCaptureDeviceInput(device: camera)
if session.canAddInput(cameraInput){
session.sessionPreset = .vga640x480
session.addInput(cameraInput)
self.inputDevice = cameraInput
}
if session.canAddOutput(videoOutput){
videoOutput.setSampleBufferDelegate(self, queue: dataOutputQueue)
videoOutput.videoSettings = [kCVPixelBufferPixelFormatTypeKey as String: kCVPixelFormatType_32BGRA]
session.addOutput(videoOutput)
let videoConnection = videoOutput.connection(with: .video)
videoConnection?.videoOrientation = .portrait
//previewLayer = AVCaptureVideoPreviewLayer(session: session)
//previewLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
//previewLayer.connection?.videoOrientation = AVCaptureVideoOrientation.portrait
//previewView.layer.addSublayer(previewLayer)
//previewLayer.position = CGPoint(x: self.previewView.frame.width / 2, y: self.previewView.frame.height / 2)
//previewLayer.bounds = previewView.frame
}
//Add Depth output to the session
if session.canAddOutput(depthOutput){
session.addOutput(depthOutput)
depthOutput.setDelegate(self, callbackQueue: dataOutputQueue)
depthOutput.isFilteringEnabled = true
let depthConnection = depthOutput.connection(with: .depthData)
depthConnection?.videoOrientation = .portrait
}
/*if session.canAddOutput(movieOutput){
session.addOutput(movieOutput)
}*/
} catch {
print("Error")
}
let outputRect = CGRect(x: 0, y: 0, width: 1, height: 1)
let videoRect = videoOutput.outputRectConverted(fromMetadataOutputRect: outputRect)
let depthRect = depthOutput.outputRectConverted(fromMetadataOutputRect: outputRect)
// Calculate the scaling factor between videoRect and depthRect
scale = max(videoRect.width, videoRect.height) / max(depthRect.width, depthRect.height)
// Change the AVCaptureDevice configuration, so you need to lock it
do{
try camera.lockForConfiguration()
// Set the AVCaptureDeviceās minimum frame duration (which is the inverse of the maximum frame rate) to be equal to the supported frame rate of the depth data
if let frameDuration = camera.activeDepthDataFormat?.videoSupportedFrameRateRanges.first?.minFrameDuration{
camera.activeVideoMinFrameDuration = frameDuration
}
// Unlock the configuration you locked
camera.unlockForConfiguration()
}catch{
fatalError(error.localizedDescription)
}
session.commitConfiguration()
}
#IBAction func startStopRecording(_ sender: Any) {
if isRecording{
stopRecording()
} else {
startRecording()
}
}
func startRecording(){
timeLabel.isHidden = false
timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(ViewController.timerAction), userInfo: nil, repeats: true)
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let flagTime = Timestamp
let auxStr = flagTime+"_output.mp4"
let fileUrl = paths[0].appendingPathComponent(auxStr)
depthCapture.prepareForRecording(timeFlag: flagTime)
movieOutput.startRecording(to: fileUrl, recordingDelegate: self)
print(fileUrl.absoluteString)
print("Recording started")
self.isRecording = true
}
func stopRecording(){
timeLabel.isHidden = true
timer.invalidate()
time = 0
timeLabel.text = "0"
movieOutput.stopRecording()
print("Stopped recording!")
self.isRecording = false
do {
try depthCapture.finishRecording(success: { (url: URL) -> Void in
print(url.absoluteString)
})
} catch {
print("Error while finishing depth capture.")
}
}
#objc func timerAction() {
time += 1
timeLabel.text = String(time)
}
#IBAction func previeModeChanged(_ sender: UISegmentedControl) {
previewMode = PreviewMode(rawValue: previewModeControl.selectedSegmentIndex) ?? .original
}
#IBAction func switchCamera(_ sender: Any) {
let currentDevice = self.inputDevice.device
let currentPosition = currentDevice.position
let preferredPosition: AVCaptureDevice.Position
let preferredDeviceType: AVCaptureDevice.DeviceType
let devices = self.videoDeviceDiscoverySession.devices
var newVideoDevice: AVCaptureDevice? = nil
switch currentPosition {
case .unspecified, .front:
preferredPosition = .back
preferredDeviceType = .builtInDualCamera
case .back:
preferredPosition = .front
preferredDeviceType = .builtInTrueDepthCamera
#unknown default:
preferredPosition = .back
preferredDeviceType = .builtInDualCamera
}
// First, seek a device with both the preferred position and device type. Otherwise, seek a device with only the preferred position. ENTENDER MEJOR LQS CONDICIONES
if let device = devices.first(where: { $0.position == preferredPosition && $0.deviceType == preferredDeviceType }) {
newVideoDevice = device
} else if let device = devices.first(where: { $0.position == preferredPosition }) {
newVideoDevice = device
}
if let videoDevice = newVideoDevice {
do {
let cameraInput = try AVCaptureDeviceInput(device: videoDevice)
self.session.beginConfiguration()
self.session.removeInput(self.inputDevice)
if self.session.canAddInput(cameraInput) {
session.sessionPreset = .vga640x480
self.session.addInput(cameraInput)
self.inputDevice = cameraInput
}else {
self.session.addInput(self.inputDevice)
}
self.session.commitConfiguration()
} catch{
print("Error occurred while creating video device input: \(error)")
}
}
}
}
extension ViewController: AVCaptureVideoDataOutputSampleBufferDelegate{
func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
let pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer)
let image = CIImage(cvPixelBuffer: pixelBuffer!)
let previewImage: CIImage
switch previewMode {
case .original:
previewImage = image
case .depth:
previewImage = depthMap ?? image
}
let displayImage = UIImage(ciImage: previewImage)
DispatchQueue.main.async {[weak self] in self?.previewView.image = displayImage}
}
}
extension ViewController: AVCaptureDepthDataOutputDelegate{
func depthDataOutput(_ output: AVCaptureDepthDataOutput, didOutput depthData: AVDepthData, timestamp: CMTime, connection: AVCaptureConnection) {
var convertedDepth: AVDepthData
// Ensure the depth data is the format you need: 32 bit FP disparity.???
if depthData.depthDataType != kCVPixelFormatType_DepthFloat16{
convertedDepth = depthData.converting(toDepthDataType: kCVPixelFormatType_DepthFloat32)
}else{
convertedDepth = depthData
}
// You save the depth data map from the AVDepthData object as a CVPixelBuffer
let pixelBuffer = convertedDepth.depthDataMap
//Using an extension, you then clamp the pixels in the pixel buffer to keep them between 0.0 and 1.0.
pixelBuffer.clamp()
// Convert the pixel buffer into a CIImage
let depthMap = CIImage(cvPixelBuffer: pixelBuffer)
// You store depthMap in a class variable for later use
DispatchQueue.main.async {
[weak self] in self?.depthMap = depthMap
}
}
}
I have a very basic AVFoundation Camera that has a captureButton that will take a photo and send that photo to the secondCameraController for it to be displayed. My problem is that there is a lot of iOS 10 deprecation and I'm not sure how I add in a flash when I press the captureButton. Any help will be highly appreciated. My code is below. Thank you guys.
class CameraController: UIViewController, AVCaptureVideoDataOutputSampleBufferDelegate {
let captureSession = AVCaptureSession()
var previewLayer: CALayer!
var captureDevice: AVCaptureDevice!
var takePhoto: Bool = false
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .white
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
prepareCamera()
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
navigationController?.setNavigationBarHidden(true, animated: true)
}
let cameraView: UIView = {
let view = UIView()
view.backgroundColor = .red
return view
}()
func prepareCamera() {
captureSession.sessionPreset = AVCaptureSessionPresetPhoto
if let availableDevices = AVCaptureDeviceDiscoverySession(deviceTypes: [.builtInWideAngleCamera], mediaType: AVMediaTypeVideo, position: .back).devices {
captureDevice = availableDevices.first
beginSession()
}
}
func beginSession() {
do {
let captureDeviceInput = try AVCaptureDeviceInput(device: captureDevice)
captureSession.addInput(captureDeviceInput)
} catch {
print(error.localizedDescription)
}
if let previewLayer = AVCaptureVideoPreviewLayer(session: captureSession) {
self.previewLayer = previewLayer
self.view.layer.addSublayer(self.previewLayer)
self.previewLayer.frame = CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height)
previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
self.view.addSubview(captureButton)
let width: CGFloat = 85
captureButton.frame = CGRect(x: (previewLayer.frame.width / 2) - width / 2, y: (previewLayer.frame.height) - width - 25, width: width, height: 85)
captureSession.startRunning()
let dataOutput = AVCaptureVideoDataOutput()
dataOutput.videoSettings = [(kCVPixelBufferPixelFormatTypeKey as NSString): NSNumber(value: kCVPixelFormatType_32BGRA)]
dataOutput.alwaysDiscardsLateVideoFrames = true
if captureSession.canAddOutput(dataOutput) {
captureSession.addOutput(dataOutput)
}
captureSession.commitConfiguration()
let queue = DispatchQueue(label: "com.cheekylabsltd.camera")
dataOutput.setSampleBufferDelegate(self, queue: queue)
}
}
func handleCapture() {
takePhoto = true
}
func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputSampleBuffer sampleBuffer: CMSampleBuffer!, from connection: AVCaptureConnection!) {
if takePhoto {
takePhoto = false
if let image = self.getImageFromSampleBuffer(buffer: sampleBuffer) {
let secondController = SecondCameraController()
secondController.takenPhoto = image
DispatchQueue.main.async {
self.present(secondController, animated: true, completion: {
self.stopCaptureSession()
})
}
}
}
}
func getImageFromSampleBuffer(buffer: CMSampleBuffer) -> UIImage? {
if let pixelBuffer = CMSampleBufferGetImageBuffer(buffer) {
let ciImage = CIImage(cvPixelBuffer: pixelBuffer)
let context = CIContext()
let imageRect = CGRect(x: 0, y: 0, width: CVPixelBufferGetWidth(pixelBuffer), height: CVPixelBufferGetHeight(pixelBuffer))
if let image = context.createCGImage(ciImage, from: imageRect) {
return UIImage(cgImage: image, scale: UIScreen.main.scale, orientation: .right)
}
}
return nil
}
func stopCaptureSession() {
self.captureSession.stopRunning()
if let inputs = captureSession.inputs as? [AVCaptureDeviceInput] {
for input in inputs {
self.captureSession.removeInput(input)
}
}
}
lazy var captureButton: UIButton = {
let button = UIButton(type: .system)
button.backgroundColor = .white
button.layer.cornerRadius = 42.5
button.clipsToBounds = true
button.alpha = 0.40
button.layer.borderWidth = 4
button.layer.borderColor = greenColor.cgColor
button.addTarget(self, action: #selector(handleCapture), for: .touchUpInside)
return button
}()
}
Try this code :
Swift v3.0
private func flashOn(device:AVCaptureDevice)
{
do{
if (device.hasTorch)
{
try device.lockForConfiguration()
device.torchMode = .on
device.flashMode = .on
device.unlockForConfiguration()
}
}catch{
//DISABEL FLASH BUTTON HERE IF ERROR
print("Device tourch Flash Error ");
}
}
//FOR FLASH OFF CODE
private func flashOff(device:AVCaptureDevice)
{
do{
if (device.hasTorch){
try device.lockForConfiguration()
device.torchMode = .off
device.flashMode = .off
device.unlockForConfiguration()
}
}catch{
//DISABEL FLASH BUTTON HERE IF ERROR
print("Device tourch Flash Error ");
}
}
// METHOD
//private let session = AVCaptureSession()
//MARK: FLASH UITLITY METHODS
func toggleFlash() {
var device : AVCaptureDevice!
if #available(iOS 10.0, *) {
let videoDeviceDiscoverySession = AVCaptureDeviceDiscoverySession(deviceTypes: [.builtInWideAngleCamera, .builtInDuoCamera], mediaType: AVMediaTypeVideo, position: .unspecified)!
let devices = videoDeviceDiscoverySession.devices!
device = devices.first!
} else {
// Fallback on earlier versions
device = AVCaptureDevice.defaultDevice(withMediaType: AVMediaTypeVideo)
}
if ((device as AnyObject).hasMediaType(AVMediaTypeVideo))
{
if (device.hasTorch)
{
self.session.beginConfiguration()
//self.objOverlayView.disableCenterCameraBtn();
if device.isTorchActive == false {
self.flashOn(device: device)
} else {
self.flashOff(device: device);
}
//self.objOverlayView.enableCenterCameraBtn();
self.session.commitConfiguration()
}
}
}
Swift 4
So there are two different behaviors to choose from in AVFoundation. One would be a capture device torch switch. Connect the torchSwitch action to some view and be sure to change CameraManager.shared.backDevice to your instance of the front or back device that provides the current input.
#IBAction func torchSwitch(_ sender: Any) {
guard let device = CameraManager.shared.backDevice else { return }
guard device.isTorchAvailable else { return }
do {
try device.lockForConfiguration()
device.torchMode = device.torchMode ? .off : .on
if device.torchMode == .on {
try device.setTorchModeOn(level: 0.7)
}
} catch {
debugPrint(error)
}
}
AVFoundation has deprecated device.flashMode
Now to set flash, declare a variable on camera or vc. The value here will be the default.
var flash: AVCaptureFlashMode = .off
Connect this action to some view
#IBAction func torchSwitch(_ sender: Any) { flash = flash ? .off : .on }
Then when you want to capture an image, use AVCapturePhotoOutput and prepare the photo settings. stillCameraOutput is an instance of AVCapturePhotoOutput.
let settings = AVCapturePhotoSettings()
settings.flashMode = flash
stillCameraOutput.capturePhoto(with: settings, delegate: self)
Swift 4 :
Following code is working fine for me
private enum FlashPhotoMode {
case on
case off
}
#IBOutlet weak var flashPhotoModeButton: UIButton!
#IBAction func toggleFlashPhotoMode(_ flashPhotoModeButton: UIButton ) {
sessionQueue.async {
self.flashPhotoMode = (self.flashPhotoMode == .on) ? .off : .on
let flashPhotoMode = self.flashPhotoMode
DispatchQueue.main.async {
if flashPhotoMode == .on {
self.flashPhotoModeButton.setBackgroundImage(UIImage(named: "flashON"), for: .normal)
print("flashON")
} else {
self.flashPhotoModeButton.setBackgroundImage(UIImage(named: "flashOFF"), for: .normal)
print("flashOFF")
}
}
}
}
#IBAction private func capturePhoto(_ photoButton: UIButton) {
................
.......................
if self.videoDeviceInput.device.isFlashAvailable {
if self.flashPhotoMode == .on {
photoSettings.flashMode = .on
print("FLASH ON ")
} else {
print("FLASH OFF ")
photoSettings.flashMode = .off
}
}
}
Thanks!