tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_hevc_support.html (1604B)

      1 <!DOCTYPE HTML>
      2 <html>
      3 <head>
      4 <title>Test HEVC video support</title>
      5 <script src="/tests/SimpleTest/SimpleTest.js"></script>
      6 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
      7 <script type="application/javascript">
      8 
      9 /**
     10 * This test is used to check we can get correct HEVC support information from
     11 * `canPlayType` and mediaCapabilities API on different platforms.
     12 */
     13 const contentType = 'video/mp4; codecs="hev1.1.6.L93.B0"';
     14 const videoConfiguration = {
     15  type: "file",
     16  video: {
     17    contentType,
     18    width: 1920,
     19    height: 1080,
     20    bitrate: 1000000,
     21    framerate: 30,
     22  },
     23 };
     24 
     25 const supportedOSs = ["WINNT", "Darwin", "Android"];
     26 
     27 add_task(async function testHEVCSupport() {
     28  // Disable fingerprinting resistance/protection to get an accurate result.
     29  await SpecialPowers.pushPrefEnv({
     30    set: [
     31      ["privacy.resistFingerprinting", false],
     32      ["privacy.fingerprintingProtection", false],
     33    ],
     34  });
     35  const os = SpecialPowers.Services.appinfo.OS;
     36  const canPlay = document.createElement('video').canPlayType(contentType);
     37  if (supportedOSs.includes(os)) {
     38    ok(canPlay != "", `HEVC is supported`);
     39  } else {
     40    ok(canPlay == "", "HEVC is not supported on current platform");
     41  }
     42 
     43  const capability = await navigator.mediaCapabilities.decodingInfo(videoConfiguration);
     44  if (supportedOSs.includes(os)) {
     45    ok(capability.supported, `HEVC is supported`);
     46    ok(capability.powerEfficient, `HEVC is powerEfficient`);
     47  } else {
     48    ok(!capability.supported, "HEVC is not supported on current platform");
     49  }
     50 });
     51 
     52 </script>
     53 </head>
     54 <body>
     55 </body>
     56 </html>