- From: Jan-Ivar Bruaroey via GitHub <sysbot+gh@w3.org>
- Date: Mon, 01 Jun 2020 19:02:22 +0000
- To: public-webrtc-logs@w3.org
> In Firefox, when scaleResolutionDownBy is not specified, it is always assumed to be 1.0, regardless of the method (e.g. setParameters, addTransceiver, etc.)? @aboba Yes (Firefox [only supports](https://bugzil.la/1396918) setting via setParameters atm.) > When there is more than one simulcast encoding, the Chrome default behavior in addTransceiver is to assume a default scaling ratio of 2:1. However, when scaleResolutionDownBy isn't specified in setParameters(), is a default value of 1.0 assumed, or some other value (e.g. the existing value)? No, 1.0 is **_not_** assumed in Chrome, or the fiddle [above](https://github.com/w3c/webrtc-pc/issues/2535#issue-627794824) would have produced 3 same-size videos (it does not, instead showing the 2:1 ratio (large, medium, small). The behavior is the same if I [comment out setParameters entirely & dump the params](https://jsfiddle.net/jib1/yvg81otc/46/) showing that the defaults are unharmed and invisible (not exposed in `getParameters`). -- GitHub Notification of comment by jan-ivar Please view or discuss this issue at https://github.com/w3c/webrtc-pc/issues/2535#issuecomment-637045749 using your GitHub account
Received on Monday, 1 June 2020 19:02:23 UTC