[Webkit-unassigned] [Bug 237365] New: WebRTC Peer Video black on Chromium devices (Client iOS device)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=237365

            Bug ID: 237365
           Summary: WebRTC Peer Video black on Chromium devices (Client
                    iOS device)
           Product: WebKit
           Version: Safari 15
          Hardware: iPhone / iPad
                OS: iOS 15
            Status: NEW
          Severity: Blocker
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: steve.bamelis at zamia.be
                CC: youennf at gmail.com

Created attachment 453609

  --> https://bugs.webkit.org/attachment.cgi?id=453609&action=review

SDP Peer

URLs (if applicable) : https://rtcmulticonnection.herokuapp.com/demos/Video-Broadcasting.html (For testing the bug)
Browsers tested:
    Firefox OK
    Chromium browser: NOK

iPhone: iOS version 15.x

What steps will reproduce the problem?
(1) Use the above URL for starting the Video Broadcasting demo, open this on Edge or Chrome and open this also on an iPhone
(2) Start a room on the iPhone
(3) Enter that room in the Chrome or Edge browser
(4) In the Chrome/Edge browser the video remains black

If we do the same test with Firefox as the browser there is no issue. We get a video stream displayed.

Attached you can find the SDP of the remote peer.

When using an Android device this is also working. Video is then able to be seen in Edge or Chrome.

Recap
- iPhone broadcast to Chrome/Edge not working
- iPhone broadcast to Firefox working
- Android broadcast to Chrome/Edge/Firefox working

In our code we receive an onstream event for the video. But nothing is shown.


kind regards,
Steve

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