Issue in Re initializing connection after close()

[MobeenAshraf]

I am currently working on a demo where I can make video and audio mute options.

API already provides mute APIS but it doesn't provide video mute API which also closes Camera light.

From this link, I see it is possible with this SDK but when I try to re-init(publish) video stream after close() method, I don't get any user-publish event callback. https://docs.agora.io/en/faq/web_camera_light.

I also intermittently get warning "SDK [WARNING]: [e0540] no need to update" where the video bool flag is set to false. THE NG SDK doesn't takes video/audio/screen bools from anywhere in code. As I understand, we could pass these option in agora-sdk

From logs, I can see that video track publishes but there is no effect on the viewer end

---

On further debugging, I noticed:

await this.client.unpublish([this.video])

neither throws any error nor calls any unPublishCallback for recievers

[disoul]

Have you read this migration guide about NG? The user-published event will be fired when a remote user publishes an audio or video track (not local user). In NG, all the async operations are using Promise, so there are no callbacks.

If you want to close your camera light, just close and unpublish your video track, then create a new video track and publish it:

let videoTrack = await AgoraRTC.createCameraVideoTrack();
await client.publish(videoTrack);
console.log("publish success");

// close camera light here
videoTrack.close();
await client.unpublish(videoTrack);

// re-create and publish your video track
videoTrack = await AgoraRTC.createCameraVideoTrack();
await client.publish(videoTrack);

[MobeenAshraf]

The user-unpublished event is not getting called on remote after I do this:

videoTrack.close();
await client.unpublish(videoTrack);

[disoul]

Have you called setMute before unpublish? There is a known issue about call setMute with unpublish(#8), it may cause user-unpublished event missing if you call LocalAudio.setMute(true). This issue has been fixed in develop branch and will be released next month.

If you did not call setMute and your SDK version is 0.1.9, this case is unexpected, please give me your sample codes to reproduce this issue.

[MobeenAshraf]

Hi, Yes, it Seems that is the case.

I was calling unpublish after couple of seconds of setMute to make sure that the receivers get a black screen and don't have video frame stopped.

[disoul]

@MobeenAshraf I recommend that you modify the CSS of the receiver's DOM element when you receive the user-unpublished event to get a black screen instead of calling setMute.

[MobeenAshraf]

Thanks @disoul, That helps