TWCLocalMediaDelegate Protocol Reference

Conforms to	NSObject
Declared in	TWCMedia.h

Overview

The TWCLocalMediaDelegate protocol allows you to respond to events from TWCLocalMedia.

`– localMedia:didAddVideoTrack:`

A video track was added to TWCLocalMedia.

- (void)localMedia:(nonnull TWCLocalMedia *)media didAddVideoTrack:(nonnull TWCVideoTrack *)videoTrack

Parameters

`media`	The `TWCLocalMedia` which has a new track.
`videoTrack`	The `TWCVideoTrack` which will be shared with Participants.

Discussion

A video track was added to TWCLocalMedia.

If you didn’t already add a renderer when you created the track, now is a good time.

Declared In

TWCMedia.h

`– localMedia:didFailToAddVideoTrack:error:`

A video track failed to be added to TWCLocalMedia.

- (void)localMedia:(nonnull TWCLocalMedia *)media didFailToAddVideoTrack:(nonnull TWCVideoTrack *)videoTrack error:(nonnull NSError *)error

Parameters

`media`	The `TWCLocalMedia` where the track was originally added.
`videoTrack`	The `TWCVideoTrack` which is no longer valid.
`error`	An `NSError` describing why the track was not added.

Discussion

A video track failed to be added to TWCLocalMedia.

Asynchronous track errors may occur due to invalid TWCVideoConstraints, or other failures in the video subsystem. Check the error that is returned for recovery strategies.

Declared In

TWCMedia.h

`– localMedia:didRemoveVideoTrack:`

A video track was removed from TWCLocalMedia.

- (void)localMedia:(nonnull TWCLocalMedia *)media didRemoveVideoTrack:(nonnull TWCVideoTrack *)videoTrack

Parameters

`media`	The `TWCLocalMedia` where the track was removed.
`videoTrack`	The `TWCVideoTrack` which was removed.

Discussion

A video track was removed from TWCLocalMedia.

Renderers are automatically removed from the track after this call returns.

Declared In

TWCMedia.h