av1-profile-asymmetry.https.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webrtc/protocol/av1-profile-asymmetry.https.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

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

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

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

<script>

'use strict';

promise_test(async t => {

  const av1SendCodec = RTCRtpSender.getCapabilities('video').codecs.find(

      codec => codec.mimeType == 'video/AV1');

  assert_not_equals(av1SendCodec, undefined);

  const pc1 = new RTCPeerConnection();

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

  const pc2 = new RTCPeerConnection();

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

  const transceiver = pc1.addTransceiver('video');

  transceiver.setCodecPreferences([av1SendCodec]);

  await pc1.setLocalDescription();

  await pc2.setRemoteDescription(pc1.localDescription);

  await pc2.setLocalDescription();

  await pc1.setRemoteDescription(pc2.localDescription);

  // Modify the profile ID of `av1SendCodec` to ensure a strict codec comparison

  // matcher would no longer consider them the same.

  const sdpFmtpMap = SDPUtils.parseFmtp(av1SendCodec.sdpFmtpLine);

  const profileId = Number(sdpFmtpMap['profile']);

  av1SendCodec.sdpFmtpLine =

      av1SendCodec.sdpFmtpLine.replace(`profile=${profileId}`,

                                       `profile=${profileId + 1}`);

  const sender = transceiver.sender;

  let params = sender.getParameters();

  params.encodings[0].codec = av1SendCodec;

  // Set parameters should not reject because the codec dictionary match

  // algorithm[1] is able to ignore asymmetrical parameters such as AV1's

  // `profile` parameter, see [2].

//

  // [1] https://w3c.github.io/webrtc-pc/#dfn-codec-dictionary-match

  // [2] https://aomediacodec.github.io/av1-rtp-spec/#723-usage-with-the-sdp-offeranswer-model

  await sender.setParameters(params);

  // getParameters() returns `av1SendCodec` now.

  params = sender.getParameters();

  assert_equals(params.encodings[0].codec.mimeType, 'video/AV1');

  assert_equals(params.encodings[0].codec.sdpFmtpLine,

                av1SendCodec.sdpFmtpLine);

}, `setParameters() ignores the asymmetrical AV1 parameter 'profile'`);

</script>