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Streams can get mixed up or blank when using simulcast

See original GitHub issue

What happened and what did you expect to happen?

Attendee 1 renders stream of attendee 2 and attendee 2 appears blank.

The issue is random, happens only locally for some attendee(s), does not revert to its initial state no matter what change (except browser refresh) any attendee makes (whether local or remote), and only happens when simulcast is active.

Upon further testing, it seems that the issue does not happen with simulcast disabled.

Mentions: Default attendee broadcast quality: 180p at max/100Kbps When made speaker/spotlight attendees will have their local stream stopped and then re-started in order to broadcast with a higher quality: 960p. Quality is reverted to 180p when an attendee is no longer in spotlight. Screen-sharing is not affected and remains the only stream that is broadcast at 1080p without bandwidth restrictions Streams are rendered using RemoteVideo from amazon-chime-sdk-component-library-react

What we’d like to know if this mixup can happen because of this issue https://github.com/aws/amazon-chime-sdk-js/issues/1448.

Also we tried applying the patch from the comment and while it did improve things, it seems that the mixup can still happen.

Have you reviewed our existing documentation?

GitHub issues
FAQs page
README page
Feature-specific guides

Reproduction steps

Join meeting, start/stop cameras or just wait.

Amazon Chime SDK for JavaScript version

2.21.1

What browsers are you seeing the problem on?

Chrome

Browser version

96.0.4664.45

Meeting and Attendee ID Information.

No response

Browser console logs

We were not able to reproduce the issue with logs enabled.

Issue Analytics

State:
Created 2 years ago
Comments:6 (6 by maintainers)

Top GitHub Comments

1reaction

hensmi-amazoncommented, Jan 24, 2022

Pardon the delay. https://github.com/aws/amazon-chime-sdk-js/pull/1831 was finally merged, will be included in 2.26 and hopefully makes this issue impossible. Please let us know if you still see it after picking up that change. I will close this issue on 2.26 release.

0reactions

hensmi-amazoncommented, Feb 18, 2022

Shipped in current release. Please open a new issue with logs if seen again.

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