IOS devicesWithMediaType deprecated

Question

I am currently using the method:

NSArray *captureDevices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];

to get a list of devices but XCode is giving me a warning:

Use AVCaptureDeviceDiscoverySession instead

I have looked at the documentation but do not know how to access the devices array

AVCaptureDeviceDiscoverySession *session = [[AVCaptureDeviceDiscoverySession alloc]init];
???

Answer 1

Create AVCaptureDeviceDiscoverySession for your requirement and then call devices method to get Array of currently available devices matching the session’s criteria

Code:

AVCaptureDeviceDiscoverySession *captureDeviceDiscoverySession = [AVCaptureDeviceDiscoverySession discoverySessionWithDeviceTypes:@[AVCaptureDeviceTypeBuiltInWideAngleCamera] 
                                      mediaType:AVMediaTypeVideo 
                                       position:AVCaptureDevicePositionBack];
NSArray *captureDevices = [captureDeviceDiscoverySession devices];

Swift 4+

let discoverySession = AVCaptureDevice.DiscoverySession(deviceTypes: [.builtInWideAngleCamera], mediaType: .video, position: .back)

Available

Device types

Media types

Position

Answer 2

AVCaptureDevice.default(.builtInWideAngleCamera, for: AVMediaTypeVideo, position: .front)

I think something like that would work. I think the AVCapture.DiscoverySession's initializer may be helpful as well. See the documentation and the stack overflow post on something similar in swift. Let me know if it helped!:)

• https://developer.apple.com/documentation/avfoundation/avcapturedevice
• How to get front camera, back camera and audio with AVCaptureDeviceDiscoverySession
• https://developer.apple.com/documentation/avfoundation/avcapturedevice.discoverysession/2361539-init

Answer 3

For future viewers, here are my two cents on this issue.

Deprecated code:

let availableCameraDevices = AVCaptureDevice.devices(for: AVMediaType.video)

Swift 5:

let deviceDiscoverySession = AVCaptureDevice.DiscoverySession(
        deviceTypes: [ .builtInWideAngleCamera ],
        mediaType: .video,
        position: .unspecified
    )
let availableCameraDevices = deviceDiscoverySession.devices