IVSCameraDelegate

Objective-C

@protocol IVSCameraDelegate <NSObject>

Swift

protocol IVSCameraDelegate : NSObjectProtocol

A delegate that provides updates about the attached camera on the main queue.


                    
                    
                    -underlyingInputSourceChangedFor:to:with:

Invoked when the underlying input source providing video samples to the camera changes, for example, when the video source is changed from the front-facing camera to the back-facing camera or when the camera is attached to an IVSBroadcastSession or IVSStage that is configured for a certain FPS and resolution, causing the camera to reconfigure its input source to be more performant.

Declaration

Objective-C

- (void)
    underlyingInputSourceChangedFor:(nonnull id<IVSCamera>)camera
                                 to:(nonnull IVSDeviceDescriptor *)inputSource
                               with:(nonnull IVSCameraFormat *)format;

Swift

optional func underlyingInputSourceChanged(for camera: any IVSCamera, to inputSource: IVSDeviceDescriptor, with format: IVSCameraFormat)

Parameters

`camera`	The camera that had it’s underlying input source changed.
`inputSource`	The new input source. If this is `nil` it means there is no available input source to record from. The camera’s video zoom factor will reset to 1.0 when the input source for the camera changes.


                    
                    
                    -videoZoomFactorChangedFor:to:

Invoked after the -[IVSCamera setVideoZoomFactor:] API successfully changes the AVCaptureDevice’s zoom factor.

Declaration

Objective-C

- (void)videoZoomFactorChangedFor:(nonnull id<IVSCamera>)camera
                               to:(CGFloat)videoZoomFactor;

Swift

optional func videoZoomFactorChanged(for camera: any IVSCamera, to videoZoomFactor: CGFloat)

Parameters

`camera`	The camera that had it’s zoom factor changed.
`zoomFactor`	The new zoom factor on the IVSCamera object. This method will not be called when the input source for the camera changes – as mentioned above, the zoom factor will be reset to 1.0 in that case.