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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_pssh_in_moof.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/media/test/test_eme_pssh_in_moof.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>
    <script class="testbody" type="text/javascript">
    let manager = new MediaTestManager;

    let psshTests = [
      { name: "bear-640x360-cenc-key-rotation",
        tracks : [
          {
            name: "video",
            type: "video/mp4; codecs=\"avc1.64000d\"",
            fragments: ["bear-640x360-v_frag-cenc-key_rotation.mp4"],
            initDatas: 6
          },
          {
            name: "audio",
            type: "audio/mp4; codecs=\"mp4a.40.2\"",
            fragments: ["bear-640x360-a_frag-cenc-key_rotation.mp4"],
            initDatas: 7
          }
        ],
        keys : {
          "30313233343536373839303132333435" :
            "ebdd62f16814d27b68ef122afce4ae3c"
        }
      },
      { name: "bipbop-clearkey-keyrotation-clear-lead",
        tracks : [
          {
            name: "video",
            type: "video/mp4; codecs=\"avc1.4d4015\"",
            fragments: ["bipbop-clearkey-keyrotation-clear-lead-video.mp4"],
            initDatas: 3
          },
          {
            name: "audio",
            type: "audio/mp4; codecs=\"mp4a.40.2\"",
            fragments: ["bipbop-clearkey-keyrotation-clear-lead-audio.mp4"],
            initDatas: 3
          }
        ],
        keys : {
          "00112233445566778899aabbccddeeff" :
            "00112233445566778899aabbccddeeff",
          "112233445566778899aabbccddeeff00" :
            "112233445566778899aabbccddeeff00"
        }
      }
    ];

    // Specialized create media keys function, since the one in eme.js relies
    // on listening for encrypted events, and we want to manage those
    // ourselves within this test.
    async function createAndSetMediaKeys(video, test) {
      function streamType(type) {
        var x = test.tracks.find(o => o.name == type);
        return x ? x.type : undefined;
      }

      var configuration = { initDataTypes: ["cenc"] };
      if (streamType("video")) {
        configuration.videoCapabilities = [{contentType: streamType("video")}];
      }
      if (streamType("audio")) {
        configuration.audioCapabilities = [{contentType: streamType("audio")}];
      }
      let keySystemAccess = await navigator.requestMediaKeySystemAccess(
        "org.w3.clearkey", [configuration]);
      let mediaKeys = await keySystemAccess.createMediaKeys();
      return video.setMediaKeys(mediaKeys);
    }

    function startTest(test, token) {
      manager.started(token);
      let video = document.createElement("video");
      document.body.appendChild(video);

      let encryptedEventCount = 0;

      let initDatas = new Map();

      function handleEncrypted(event) {
        // We get one 'encrypted' event for every run of contiguous PSSH boxes
        // in each stream. Note that some of the PSSH boxes contained in the
        // "bear" streams aren't in the Common Open PSSH box format, so our
        // ClearKey CDM will reject those license requests. Some of the init
        // data is also repeated.
        encryptedEventCount++;

        let hexStr = StringToHex(new TextDecoder().decode(event.initData));
        if (initDatas.has(hexStr)) {
          // Already have a session for this.
          return;
        }

        let initData = new Uint8Array(event.initData);
        is(event.initDataType, "cenc", "'encrypted' event should have 'cenc' " +
           "initDataType");
        Log(token, "encrypted event => len=" + initData.length + " " + hexStr);
        let session = event.target.mediaKeys.createSession();
        initDatas.set(hexStr, session);
        session.addEventListener("message", e => {
          e.target.update(
            GenerateClearKeyLicense(e.message, test.keys));
        });

        session.generateRequest(event.initDataType, event.initData);
      }

      video.addEventListener("encrypted", handleEncrypted);

      video.addEventListener("ended", () => {
        let expectedEncryptedEvents =
          test.tracks.reduce((sum, track) => sum += track.initDatas, 0);
        is(encryptedEventCount, expectedEncryptedEvents,
           "Should get one 'encrypted' event per run of contiguous PSSH " +
           "boxes in media.");
        manager.finished(token);
      });

      video.autoplay = true;

      createAndSetMediaKeys(video, test, token)
        .then(() => LoadTest(test, video, token))
    }

    manager.runTests(psshTests, startTest);

    </script>
  </body>
</html>

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