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  <meta http-equiv="content-type" content="text/html; charset=windows-1252">
  <title>MSE: Append buffer with multiple init segments</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" />
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<pre id="test">
<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

runWithMSE(async (ms, v) => {
  await once(ms, "sourceopen");
  const sb = ms.addSourceBuffer("video/webm");
  const seek_lowres = await fetchWithXHR("seek_lowres.webm");
  const seek = await fetchWithXHR("seek.webm");
  const data = [
    [seek_lowres, 0, 438],     // lowres init segment
    [seek_lowres, 438, 25950], // lowres media segment 0-1
    [seek, 0, 318],            // init segment
    [seek, 46712, 67833],       // media segment 0.8-1.201
  ];
  const length = data.map(d => d[2] - d[1]).reduce((a, b) => a + b, 0);
  const arrayBuffer = new Uint8Array(length);
  let pos = 0;
  for (const d of data) {
    const buffer = new Uint8Array(d[0], d[1], d[2] - d[1]);
    arrayBuffer.set(buffer, pos);
    pos += buffer.byteLength;
  }
  await loadSegment(sb, arrayBuffer);
  // Since we are passing multiple segments in one buffer,
  // the first durationchange event from parsing the init
  // segment will be fired before updateend.
  const p = once(v, "durationchange");
  ms.endOfStream();
  await p;
  ok(v.duration, 1.201);
  SimpleTest.finish();
});

</script>
</pre>
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