[Webkit-unassigned] [Bug 225295] New: iOS negotiates h264 high profile but fails to encode it

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=225295

            Bug ID: 225295
           Summary: iOS negotiates h264 high profile but fails to encode
                    it
           Product: WebKit
           Version: Safari 14
          Hardware: iPhone / iPad
                OS: iOS 14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: geir.bakke at whereby.com
                CC: youennf at gmail.com

Setting up peerConnections between desktop safari and iphone safari (possibly iOS<>iOS as well), they seem to negotiate and use h264 high profile. iOS is not sending any data but receives and renders just fine. Removing high profile by sdp munging seems to fix it partially - but then iOS stutters and sends lots of PLIs (related to #195124?).

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