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products/Sources/formale Sprachen/C/Firefox/dom/media/test/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 4 kB

Quelle test_eme_sample_groups_playback.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/media/test/test_eme_sample_groups_playback.html

<!DOCTYPE HTML>
<html>

<head>
  <title>Test Encrypted Media Extensions</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
  <script type="text/javascript" src="manifest.js"></script>
  <script type="text/javascript" src="eme.js"></script>
</head>

<body>
  <video controls id="video"></video>
  <pre id="test">
    <script class="testbody" type="text/javascript">

      // Tests that files with a default key and a seperate sample keyids in the
      // sgpd box play correctly (if the keyid from the sgpd box is not parsed
      // or assigned to the sample we will wait indefinitely for the default
      // key).

      SimpleTest.waitForExplicitFinish();

      // Test files for samples encrypted with different media keys.
      var gEMESampleGoupTests = [
        {
          name:"video with 4 keys in sgpd (sbgp in traf sgpd in stbl)",
          track: {
            name:"video",
            type:"video/mp4; codecs=\"avc1.64000d\"",
            fragments:[ "sample-encrypted-sgpdstbl-sbgptraf.mp4"
            ]
          },
          keys: {
            // "keyid" : "key"
            "279926496a7f5d25da69f2b3b2799a7f": "5544694d47473326622665665a396b36",
            "597669572e55547e656b56586e2f6f68": "7959493a764556786527517849756635",
            "205b2b293a342f3d3268293e6f6f4e29": "3a4f3674376d6c48675a273464447b40",
            "32783e367c2e4d4d6b46467b3e6b5478": "3e213f6d45584f51713d534f4b417855",
          },
          sessionType:"temporary",
          sessionCount:1,
          duration:2,
        },
      ],
      test = gEMESampleGoupTests[0];

      var video = document.getElementById("video");
      video.addEventListener("encrypted", () => {
        Log(test.name, "Recieved encrypted event");
      });

      video.addEventListener("waitingforkey", () => {
        Log(test.name, "waitingforkey");
        ok(false, test.name + " Video is waitingforkey, indicating that the samples are not being assigned the correct id from the sgpd box!");
        SimpleTest.finish();
      });

      function LoadEME() {
        var options = [{
          initDataType: "cenc",
          videoType: test.track.type,
        }];

        return navigator.requestMediaKeySystemAccess("org.w3.clearkey", options)
          .then((keySystemAccess) => {
            return keySystemAccess.createMediaKeys();
          }, bail("Failed to request key system access."))

          .then((mediaKeys) => {
            video.setMediaKeys(mediaKeys);

            var session = mediaKeys.createSession();
            once(session, "message", (ev) => {
              is(ev.messageType, "license-request", "Expected a license-request");
              session.update(GenerateClearKeyLicense(ev.message, test.keys));
            });

            var json = JSON.stringify({
              "kids":Object.keys(test.keys).map(HexToBase64)
            });
            var request = new TextEncoder().encode(json);
            session.generateRequest("keyids", request)
              .then(() => {
                Log(test.name, "Request license success");
              }, reason => {
                Log("Request license failed! " + reason);
              });
          });
      }

      function DownloadMedia(url, type, mediaSource) {
        return new Promise((resolve) => {
          var sourceBuffer = mediaSource.addSourceBuffer(type);
          fetchWithXHR(url, (response) => {
            once(sourceBuffer, "updateend", resolve);
            sourceBuffer.appendBuffer(new Uint8Array(response));
          });
        });
      }

      function LoadMSE() {
        // Only set the source of the video and download the tracks after we
        // have set the license keys, so we don't hit the waitingforkey event
        // unless samples are being incorrectly assigned the default key
        // (and we can safely fail).
        LoadEME()
          .then(() => {
            var ms = new MediaSource();
            video.src = URL.createObjectURL(ms);

            once(ms, "sourceopen", () => {
              Promise.all(test.track.fragments.map(fragment => DownloadMedia(fragment, test.track.type, ms)))
                .then(() => {
                  ms.endOfStream();
                  video.play();
                });
            });

            once(video, "ended", SimpleTest.finish);
          });
      }

      LoadMSE();

  </script>
  </pre>
</body>

</html>

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