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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 3 kB

Quelle test_cueless_webm_seek-2.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/media/test/test_cueless_webm_seek-2.html

<!DOCTYPE HTML>
<html>

<head>
  <title>Test for Bug 657791</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>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=657791">Mozilla Bug 657791</a>

<p id="display"></p>
<div id="content" style="display: none">

</div>
<pre id="test">
<script type="application/javascript">

// Subset of seek tests for cueless WebMs. When random seeking (rather than just
// in buffered ranges) is implemented for WebM, these tests can be removed and
// the cueless WebM(s) references can be moved to the general test_seek test
// array.
// Test array is defined in manifest.js

var manager = new MediaTestManager;

// Exercise functionality as in test_seek-2
function testWebM2(e) {
  var v = e.target;
  v.removeEventListener('loadeddata', testWebM2);

  var startPassed = false;
  var endPassed = false;
  var completed = false;

  ok(v.buffered.length >= 1, "Should have a buffered range");
  var halfBuffered = v.buffered.end(0) / 2;

  function start() {
    if (completed)
      return;

    is(v.seekable.start(0), v.buffered.start(0), "Seekable start should be buffered start");
    is(v.seekable.end(0), v.buffered.end(0), "Seekable end should be buffered end");
    v.currentTime=halfBuffered;
    v.play();
  }

  function seekStarted() {
    if (completed)
      return;

    startPassed = true;
  }

  function seekEnded() {
    if (completed)
      return;

    endPassed = true;
  }

  function playbackEnded() {
    if (completed)
      return;

    completed = true;
    ok(startPassed, "send seeking event");
    ok(endPassed, "send seeked event");
    ok(v.ended, "Checking playback has ended");
    ok(Math.abs(v.currentTime - v.duration) <= 0.1, "Checking currentTime at end: " + v.currentTime);
    removeNodeAndSource(v);
    manager.finished(v._token);
  }

  v.addEventListener("ended", playbackEnded);
  v.addEventListener("seeking", seekStarted);
  v.addEventListener("seeked", seekEnded);

  start();
}

// Fetch the media resource using XHR so we can be sure the entire
// resource is loaded before we test buffered ranges. This ensures
// we have deterministic behaviour.
function fetch(url, fetched_callback) {
  var xhr = new XMLHttpRequest();
  xhr.open("GET", url, true);
  xhr.responseType = "blob";

  var loaded = function () {
    if (xhr.status == 200 || xhr.status == 206) {
      // Request fulfilled. Note sometimes we get 206... Presumably because either
      // httpd.js or Necko cached the result.
      fetched_callback(window.URL.createObjectURL(xhr.response));
    } else {
      ok(false, "Fetch failed headers=" + xhr.getAllResponseHeaders());
    }
  };

  xhr.addEventListener("load", loaded);
  xhr.send();
}

function startTest(test, token) {
  var onfetched = function(uri) {
    var v = document.createElement('video');
    v._token = token;
    v.src = uri;
    v.addEventListener("loadeddata", testWebM2);
    document.body.appendChild(v);
  }
  manager.started(token);
  fetch(test.name, onfetched);
}

SimpleTest.waitForExplicitFinish();
manager.runTests(gCuelessWebMTests, startTest);

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

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