- From: Philipp Hancke via GitHub <sysbot+gh@w3.org>
- Date: Wed, 07 Dec 2022 07:47:36 +0000
- To: public-webrtc-logs@w3.org
> Compare to [setOfferedRtpHeaderExtensions](https://w3c.github.io/webrtc-extensions/#dom-rtcrtptransceiver-setofferedrtpheaderextensions), where leaving out a header extension means: don't modify it and leave it as-is
Right, so
```
const pc = new RTCPeerConnection();
const t = pc.addTransceiver('audio');
t.setOfferedRtpHeaderExtensions([{uri: "urn:ietf:params:rtp-hdrext:ssrc-audio-level", direction: "stopped"}]);
const offer = await pc.createOffer();
console.log(offer.sdp.split('\r\n').filter(l => l.startsWith('a=extmap:')))
```
will, in Chrome, remove ssrc-audio-level but leave the other three extensions untouched.
That should be easy to fix by changing https://w3c.github.io/webrtc-extensions/#methods to look at (a copy of) the offered header extensions with everything set to stopped, then enabling based on the input.
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Received on Wednesday, 7 December 2022 07:47:37 UTC