tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_peerConnection_stats_jitter.html (1647B)

      1 <!DOCTYPE HTML>
      2 <html>
      3 <head>
      4  <script type="application/javascript" src="pc.js"></script>
      5  <script type="application/javascript" src="stats.js"></script>
      6 </head>
      7 <body>
      8 <pre id="test">
      9 <script type="application/javascript">
     10  createHTML({
     11    bug: "1672590",
     12    title: "Jitter sanity check"
     13  });
     14 
     15 const checkJitter = stats => {
     16  stats.forEach((stat, mapKey) => {
     17    if (stat.type == "remote-inbound-rtp") {
     18      // This should be much lower for audio, TODO: Bug 1330575
     19      const expectedJitter = stat.kind == "video" ? 0.5 : 1;
     20 
     21      ok(stat.jitter < expectedJitter,
     22          stat.type + ".jitter is sane number for a local only test. value="
     23          + stat.jitter);
     24    }
     25  });
     26 };
     27 
     28 const PC_LOCAL_TEST_LOCAL_JITTER = async test => {
     29  checkJitter(await waitForSyncedRtcp(test.pcLocal._pc));
     30 }
     31 
     32 const PC_REMOTE_TEST_REMOTE_JITTER = async test => {
     33  checkJitter(await waitForSyncedRtcp(test.pcRemote._pc));
     34 }
     35 
     36 runNetworkTest(async function (options) {
     37  // We don't know how to get QP value when using Android system codecs.
     38  if (navigator.userAgent.includes("Android")) {
     39    await pushPrefs(["media.navigator.mediadatadecoder_vpx_enabled", false],
     40                    ["media.webrtc.hw.h264.enabled", false]);
     41  }
     42 
     43  const test = new PeerConnectionTest(options);
     44 
     45  test.chain.insertAfter("PC_LOCAL_WAIT_FOR_MEDIA_FLOW",
     46    [PC_LOCAL_TEST_LOCAL_JITTER]);
     47 
     48  test.chain.insertAfter("PC_REMOTE_WAIT_FOR_MEDIA_FLOW",
     49    [PC_REMOTE_TEST_REMOTE_JITTER]);
     50 
     51  test.setMediaConstraints([{audio: true}, {video: true}],
     52                           [{audio: true}, {video: true}]);
     53  await test.run();
     54 });
     55 </script>
     56 </pre>
     57 </body>
     58 </html>