268147 2024-01-26 01:19:19 -0800 scaleResolutionDownBy >= 4 will cause video freeze when using H264 Codec 2024-03-10 14:29:23 -0700 1 1 1 Unclassified WebKit WebRTC Safari 17 Mac (Intel) Unspecified RESOLVED DUPLICATE 268098 InRadar P2 Major --- 1 seimor webkit-unassigned webkit-bug-importer youennf oldest_to_newest 2007862 0 seimor 2024-01-26 01:19:19 -0800 Reproduce Step: 1. Open webrtc samples: https://webrtc.github.io/samples/src/content/peerconnection/change-codecs/ 2. Open dev tools 3. Click start Button 4. Select Codec: H264 5. Click Call 6. Input code: ```javascript (() => { const senders = pc1.getSenders(); const sender = senders.find(s => s.track.kind === "video"); const params = sender.getParameters(); params.encodings[0].scaleResolutionDownBy = 6; sender.setParameters(params); })() ``` in dev-tools' console and tap ENTER You will see the right video(received side) is freezed! 2010048 1 webkit-bug-importer 2024-02-02 01:20:13 -0800 <rdar://problem/122172715> 2010053 2 youennf 2024-02-02 01:59:42 -0800 @simu, is it specific to macOS Intel? I cannot reproduce in my AS device. 2010054 3 youennf 2024-02-02 02:04:44 -0800 The issue might be that WebKit on macOS Intel can go as low was 192x108 but no lower at the moment. 2019964 4 youennf 2024-03-10 14:29:23 -0700 *** This bug has been marked as a duplicate of bug 268098 ***