rid-manipulation.html

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This test has a WPT meta file that disables it given conditions:
- : https://github.com/web-platform-tests/wpt/issues/37564
This WPT test may be referenced by the following Test IDs:
- /webrtc/simulcast/rid-manipulation.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset=utf-8>

<title>RTCPeerConnection Simulcast Tests - RID manipulation</title>

<meta name="timeout" content="long">

<script src="../third_party/sdp/sdp.js"></script>

<script src="simulcast.js"></script>

<script src="../RTCPeerConnection-helper.js"></script>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/resources/testdriver.js"></script>

<script src="/resources/testdriver-vendor.js"></script>

<script src="../../mediacapture-streams/permission-helper.js"></script>

<script>

promise_test(async t => {

  const pc1 = new RTCPeerConnection();

  const pc2 = new RTCPeerConnection();

  t.add_cleanup(() => pc1.close());

  t.add_cleanup(() => pc2.close());

  const rids = [0, 1, 2];

  pc1.addTransceiver("video", {sendEncodings: rids.map(rid => ({rid}))});

  const [{sender}] = pc1.getTransceivers();

  const negotiateSfuAnswer = async asimulcast => {

    const offer = await pc1.createOffer();

    await pc1.setLocalDescription(offer);

    offer.sdp = swapRidAndMidExtensionsInSimulcastOffer(offer, rids);

    await pc2.setRemoteDescription(offer);

    const answer = await pc2.createAnswer();

    await pc2.setLocalDescription(answer);

    answer.sdp = swapRidAndMidExtensionsInSimulcastAnswer(answer,pc1.localDescription, rids);

    answer.sdp = answer.sdp.replace('a=simulcast:recv 0;1;2', asimulcast);

    return answer;

};

  await pc1.setRemoteDescription(await negotiateSfuAnswer('a=simulcast:recv foo;1;2'));

  await pc1.setRemoteDescription(await negotiateSfuAnswer('a=simulcast:recv foo;bar;2'));

}, 'Remote reanswer altering rids does not throw an exception.');

</script>