TWCCameraCapturerDelegate Protocol Reference

Conforms to	NSObject
Declared in	TWCCameraCapturer.h

Overview

The camera capturer delegate receives important lifecycle events related to the capturer. By implementing these methods you can override default behaviour, or handle errors that may occur.

`– cameraCapturerPreviewDidStart:`

The camera capturer has started capturing local preview.

- (void)cameraCapturerPreviewDidStart:(nonnull TWCCameraCapturer *)capturer

Parameters

`capturer`	The capturer which started.

Discussion

The camera capturer has started capturing local preview.

Declared In

TWCCameraCapturer.h

`– cameraCapturer:didStartWithSource:`

The camera capturer has started capturing video in a live conversation.

- (void)cameraCapturer:(nonnull TWCCameraCapturer *)capturer didStartWithSource:(TWCVideoCaptureSource)source

Parameters

`capturer`	The capturer which started.
`source`	The source which is now being captured.

Discussion

The camera capturer has started capturing video in a live conversation.

By default TWCCameraCapturer mirrors (only) TWCVideoViewRenderer views when the source is TWCVideoCaptureSourceFrontCamera. If you respond to this delegate method then it is your responsibility to apply mirroring as you see fit.

Note: At the moment, this method is synchronized with capture output and not the renderers.

Declared In

TWCCameraCapturer.h

`– cameraCapturerWasInterrupted:`

The camera capturer was temporarily interrupted. Respond to this method to override the default behaviour.

- (void)cameraCapturerWasInterrupted:(nonnull TWCCameraCapturer *)capturer

Parameters

`capturer`	The capture which was interrupted.

Discussion

The camera capturer was temporarily interrupted. Respond to this method to override the default behaviour.

By default TWCCameraCapturer will pause the video track in response to an interruption. This is a good opportunity to update your UI, and/or take some sort of action.

Declared In

TWCCameraCapturer.h

`– cameraCapturer:didStopRunningWithError:`

The camera capturer stopped running with a fatal error.

- (void)cameraCapturer:(nonnull TWCCameraCapturer *)capturer didStopRunningWithError:(nonnull NSError *)error

Parameters

`capturer`	The capturer which stopped.
`error`	The error which caused the capturer to stop.

Discussion

The camera capturer stopped running with a fatal error.

Declared In

TWCCameraCapturer.h