[Webkit-unassigned] [Bug 195868] New: Non-standard video resolutions are not sent to peer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195868

            Bug ID: 195868
           Summary: Non-standard video resolutions are not sent to peer
           Product: WebKit
           Version: Safari 12
          Hardware: iPhone / iPad
                OS: iOS 12
            Status: NEW
          Severity: Critical
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: webkit at xylil.com
                CC: youennf at gmail.com

Tests at https://jsfiddle.net/thehunmonkgroup/kmgebrfz/15/ seem to indicate that iOS 12.2 Beta now supports arbitrary video resolutions when acquiring a stream via navigator.mediaDevices.getUserMedia().

Local display of the acquired stream works fine, however, when sending that same stream to a peer connection, no data is received by the peer.

I've whipped up a quick test case to illustrate the issue:

1. Visit https://staging-connect.circleanywhere.com/public/ios/qqvga-stream-not-sent-to-peer/#vga in Google Chrome and via an iOS device, and notice that the Google Chrome instance correctly receives the video stream from the iOS device. This configuration sets the video constraints at VGA resolution, which in iOS 12.1 is an available 'standard' resolution.

2. Visit https://staging-connect.circleanywhere.com/public/ios/qqvga-stream-not-sent-to-peer/ in Google Chrome and via an iOS device, and notice that the Google Chrome instance DOES NOT correctly receive the video stream from the iOS device. This configuration sets the video constraints at QQVGA resolution, which in iOS 12.2 is an available 'scaled' resolution as far as I can tell.

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