A lot of applications are expecting to have scaling factors automatically applied as some sort of simulcast support was added before scaleResolutionDownBy was implemented. For backward compatibility, when no scaleResolutionDownBy is specified, then the scaling factors are applied. If any layer has a value for scaleResolutionDownBy, even if it's 1, then the non conforming default behavior is not used. It's a trade-off between backward compatibility for existing applications and moving forward with the new parameter. Since the parameter has been introduced a while ago now, it might be time to consider depreciating that old behavior. -- GitHub Notification of comment by Orphis Please view or discuss this issue at https://github.com/w3c/webrtc-pc/issues/2535#issuecomment-637412676 using your GitHub accountReceived on Tuesday, 2 June 2020 09:23:21 UTC
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