Quelle test_bug1512958.html

Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/media/test/test_bug1512958.html

<!DOCTYPE HTML>
<html>
<head>
  <title>Test that pausing and resuming a captured media element with audio doesn't stall</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>
<audio id="a"></audio>
<pre id="test">
<script class="testbody" type="text/javascript">
function dumpEvent({target, type}) {
  info(`${target.name} GOT EVENT ${type} currentTime=${target.currentTime} ` +
       `paused=${target.paused} ended=${target.ended} ` +
       `readyState=${target.readyState}`);
}

function wait(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

const a = document.getElementById('a');

const events = ["timeupdate", "seeking", "seeked", "ended", "playing", "pause"];
for (let ev of events) {
  a.addEventListener(ev, dumpEvent);
}

(async () => {
  try {
    SimpleTest.waitForExplicitFinish();
    SimpleTest.requestFlakyTimeout("Timeouts for shortcutting test-timeout");

    const test = getPlayableAudio(gTrackTests.filter(t => t.duration > 2));
    if (!test) {
      todo(false, "No playable audio");
      return;
    }

    // Start playing and capture
    a.src = test.name;
    a.name = test.name;
    const ac = new AudioContext();
    ac.createMediaElementSource(a);
    a.play();
    do {
      await new Promise(r => a.ontimeupdate = r);
    } while(a.currentTime == 0)

    // Pause to trigger recreating tracks in DecodedStream
    a.pause();
    await new Promise(r => a.onpause = r);

    // Resuming should now work. Bug 1512958 would cause a stall because the
    // original track wasn't ended and we'd block on it.
    // See https://bugzilla.mozilla.org/show_bug.cgi?id=1512958#c5
    a.play();
    await new Promise(r => a.onplaying = r);
    a.currentTime = test.duration - 1;
    await Promise.race([
      new Promise(res => a.onended = res),
      wait(30000).then(() => Promise.reject(new Error("Timeout"))),
    ]);
  } catch(e) {
    ok(false, e);
  } finally {
    SimpleTest.finish();
  }
})();
</script>
</pre>
</body>
</html>

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