test_PlayEventsAutoPlaying2.html

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<!DOCTYPE HTML>

<html>

<head>

  <title>MSE: basic functionality</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script type="text/javascript" src="mediasource.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<body>

<pre id="test">

<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

// This test checks that readyState is properly set and the appropriate events are being fired accordingly:

// 1. Ensure that play/playing aren't fired before any media data been added.

// 2. Load more than 10s of data and ensure that canplay, play and playing events are fired.

runWithMSE(async (ms, el) => {

  el.controls = true;

  el.autoplay = true;

  const eventCounts = { play: 0, playing: 0 };

  await once(ms, "sourceopen");

  logEvents(el);

  ok(true, "Receive a sourceopen event");

  const forbiddenEvents = e => {

    ok(el.readyState >= el.HAVE_FUTURE_DATA, "Must not have received event too early");

    is(eventCounts[e.type], 0, "event should have only be fired once");

    eventCounts[e.type]++;

};

  el.addEventListener("play", forbiddenEvents);

  el.addEventListener("playing", forbiddenEvents);

  const videosb = ms.addSourceBuffer("video/mp4");

  el.addEventListener("error", e => {

    ok(false, `should not fire ${e.type} event`);

    SimpleTest.finish();

});

  is(el.readyState, el.HAVE_NOTHING, "readyState is HAVE_NOTHING");

  let p = once(el, "loadedmetadata");

  await fetchAndLoad(videosb, "bipbop/bipbop_video", ["init"], ".mp4");

  await p;

  ok(true, "got loadedmetadata event");

  // We shift the timestamps slightly to create a small gaps at the start.

  // one that should normally be ignored.

  videosb.timestampOffset = 0.1;

  p = Promise.all(["loadeddata", "canplay", "play", "playing"].map(e => once(el, e)));

  await fetchAndLoad(videosb, "bipbop/bipbop_video", range(1, 14), ".m4s");

  await p;

  ok(true, "got all required event");

  SimpleTest.finish();

});

</script>

</pre>

</body>

</html>