IVSCameraDelegate

Objective-C

@protocol IVSCameraDelegate <NSObject>

Swift

protocol IVSCameraDelegate : NSObjectProtocol

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

  • 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: 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.

  • 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: 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.