video-psnr.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-stats/video-psnr.https.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

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

<title>RTCPeerConnection getStats test related to outbound-rtp stats</title>

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

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

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

<script>

function extractOutboundRtpStats(stats) {

  const wantedStats = [];

  stats.forEach(report => {

    if (report.type === 'outbound-rtp') {

     wantedStats.push(report);

});

  return wantedStats;

promise_test(async (test) => {

  const pc1 = new RTCPeerConnection();

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

  const pc2 = new RTCPeerConnection();

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

  // PSNR is gated on hardware.

  const stream = await navigator.mediaDevices.getUserMedia({video: true});

  test.add_cleanup(() => stream.getTracks().forEach(t => t.stop()));

  stream.getTracks().forEach(t => pc1.addTrack(t, stream));

  exchangeIceCandidates(pc1, pc2);

  exchangeOfferAnswer(pc1, pc2);

  const {track} = await new Promise(r => pc2.ontrack = r);

  await waitForRtpAndRtcpStats(pc1);

  // Why does ^ not return the stats... and seems unused in general?

  const outboundStats = await pc1.getStats();

  const outboundRtp = [...outboundStats.values()]

    .find(({type}) => type === 'outbound-rtp');

  assert_not_equals(outboundRtp, undefined);

  assert_not_equals(outboundRtp.psnrMeasurements, undefined);

  assert_not_equals(outboundRtp.psnrSum, undefined);

  assert_not_equals(outboundRtp.psnrSum.y, undefined);

  assert_not_equals(outboundRtp.psnrSum.u, undefined);

  assert_not_equals(outboundRtp.psnrSum.v, undefined);

}, 'video psnr stats are present');

promise_test(async (test) => {

  const pc1 = new RTCPeerConnection();

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

  const pc2 = new RTCPeerConnection();

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

  // PSNR is gated on hardware so this will fail.

  const stream = await getNoiseStream({video: true});

  test.add_cleanup(() => stream.getTracks().forEach(t => t.stop()));

  stream.getTracks().forEach(t => pc1.addTrack(t, stream));

  exchangeIceCandidates(pc1, pc2);

  exchangeOfferAnswer(pc1, pc2);

  const {track} = await new Promise(r => pc2.ontrack = r);

  await waitForRtpAndRtcpStats(pc1);

  // Why does ^ not return the stats... and seems unused in general?

  const outboundStats = await pc1.getStats();

  const outboundRtp = [...outboundStats.values()]

    .find(({type}) => type === 'outbound-rtp');

  assert_not_equals(outboundRtp, undefined);

  assert_equals(outboundRtp.psnrMeasurements, undefined);

  assert_equals(outboundRtp.psnrSum, undefined);

}, 'video psnr stats are gated on hardware');

</script>