What Is the Role of Avcapturedevicetype.Builtindualcamera

AVCaptureDevice devices are empty

Not all iPhones contain dual camera, that's why devices is empty.

You can try add this deviceTypes: [.builtInWideAngleCamera].

Here is all available device types for now.

Also there is a good answer to question about Dual Camera - check this.

Hope this will help you!

Capture frames from both cameras (TelePhoto and WideAngle) in the same time

Yes, it's possible.

Just pick the right configuration.

---

Capture device should be builtInDualCamera:

let captureDevice = AVCaptureDevice.default(.builtInDualCamera, for: .video, position: .back)

---

Configure capture photo output after configuring capture session:

captureSession = AVCaptureSession()
captureSession?.sessionPreset = AVCaptureSession.Preset.photo
captureSession?.addInput(input)
captureSession?.addOutput(capturePhotoOutput!)

capturePhotoOutput?.isHighResolutionCaptureEnabled = true

capturePhotoOutput?.isDualCameraDualPhotoDeliveryEnabled = true

---

Configure photo settings before capture the photo:

let photoSettings = AVCapturePhotoSettings()
photoSettings.isAutoStillImageStabilizationEnabled = true
photoSettings.isHighResolutionPhotoEnabled = true
photoSettings.isAutoDualCameraFusionEnabled = false

photoSettings.isDualCameraDualPhotoDeliveryEnabled = true

---

Implement AVCapturePhotoCaptureDelegate, and override next method:

public func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?)

---

You will receive 2 photoOutput callbacks!

How to get front camera, back camera and audio with AVCaptureDeviceDiscoverySession

You can get the front camera with the following:

AVCaptureDevice.default(.builtInWideAngleCamera, for: AVMediaType.video, position: .front)

The back camera:

AVCaptureDevice.default(.builtInWideAngleCamera, for: AVMediaType.video, position: .back)

And the microphone:

AVCaptureDevice.default(.builtInMicrophone, for: AVMediaType.audio, position: .unspecified)

---

Related Topics