iOS and Mac

Stream ingest client

1. Start screen sharing.

   // Configure screen sharing for stream ingest
   int ret = [self.engine startScreenShareWithDesktopId: int:desktopId AliRtcScreenShareConfig * _Nonnull:config];
   .....

2. After the stream ingest starts, use a callback to confirm that the screen sharing is published.

   void onScreenSharePublishStateChanged(AliRtcEngine.AliRtcPublishState oldState ,
                                                AliRtcEngine.AliRtcPublishState newState,
                                                int elapseSinceLastState, String channel);

   Parameter	Type	Description
   oldState	AliRtcPublishState	The previous stream ingest state.
   newState	AliRtcPublishState	The current stream ingest state.
   elapseSinceLastState	int	The time interval since the last state change. Unit: ms.
   channel	String	The current channel ID.

3. Stop screen sharing.

   // Configure to stop screen sharing
   int ret = [self.engine stopScreenShare:NO];

4. After screen sharing stops, use a callback to confirm that the screen sharing is unpublished.

   void onScreenSharePublishStateChanged(AliRtcEngine.AliRtcPublishState oldState ,
                                                AliRtcEngine.AliRtcPublishState newState,
                                                int elapseSinceLastState, String channel);

   Parameter	Type	Description
   oldState	AliRtcPublishState	The previous stream ingest state.
   newState	AliRtcPublishState	The current stream ingest state.
   elapseSinceLastState	int	The time interval since the last state change. Unit: ms.
   channel	String	The current channel ID.

Subscriber client

Subscribers can automatically or manually subscribe to the screen sharing video stream from the stream ingest client and set the corresponding view for display. For more information, see the AliRtcEngine interface.