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<!DOCTYPE HTML>
<html>
<head>
<title>Test video hardware decoding</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript">

/**
 * This test is used to check hardware video decoding on different platforms.
 */
const PLATFORMS = {
  // TODO : add Linux and Android, media-gpu doesn't run on them yet
  WINNT: {
    process: "GPU",
    tests: [
      {
        file: "gizmo.mp4",
        decoder: "wmf H264 codec hardware video decoder",
      },
      // TODO : enable VP9 for Windows. The current machine on CI doesn't
      // support VP9 HW. See bug 1861755.
      // {
      //   file: "gizmo.webm",
      //   decoder: "wmf VP9 codec hardware video decoder",
      // },
      // TODO : add AV1, see bug 1861501.
    ],
  },
  Darwin: {
    process: "RDD",
    tests: [
      {
        file: "gizmo.mp4",
        decoder: "apple hardware VT decoder",
      },
      // TODO : enable VP9 for MacOS. The current machine on CI doesn't support
      // VP9 HW. See bug 1861741.
      // {
      //   file: "gizmo.webm",
      //   decoder: "apple hardware VT decoder",
      // },
    ],
  },
};

add_task(async function testHardwareVideoDecoding() {
  const platformName = SpecialPowers.Services.appinfo.OS;
  const platformTest = PLATFORMS[platformName];
  for (const test of platformTest.tests) {
    info(
      `Testing ${test.file} on ${platformName} : expect ${test.decoder} in ${platformTest.process}`
    );
    await createAndPlayVideo(test.file);
    await assertRunningProcessAndDecoderName({
      expectedProcess: platformTest.process,
      expectedDecoder: test.decoder,
    });
    await waitVideoPlayToEnd();
  }
});

// Following are helper functions
async function createAndPlayVideo(fileUrl) {
  const video = document.createElement("video");
  document.body.appendChild(video);
  video.src = fileUrl;
  ok(
    await video.play().then(
      () => true,
      () => false
    ),
    "video started playing"
  );
  // Waiting for timeupdate to ensure the video decoder has been created
  // correctly.
  await new Promise(r => (video.ontimeupdate = r));
}

async function assertRunningProcessAndDecoderName(
  { expectedProcess, expectedDecoder } = {}
) {
  const video = document.querySelector("video");
  ok(!video.paused, "checking a playing video that should be hw decoding");

  const debugInfo = await SpecialPowers.wrap(video).mozRequestDebugInfo();
  const videoDecoderName = debugInfo.decoder.reader.videoDecoderName;

  const isExpectedDecoder =
    videoDecoderName.indexOf(`${expectedDecoder}`) == 0;
  ok(
    isExpectedDecoder,
    `Playback running by decoder '${videoDecoderName}', expected '${expectedDecoder}'`
  );

  const isExpectedProcess =
    videoDecoderName.indexOf(`(${expectedProcess} remote)`) > 0;
  ok(
    isExpectedProcess,
    `Playback running in process '${videoDecoderName}', expected '${expectedProcess}'`
  );
}

async function waitVideoPlayToEnd() {
  const video = document.querySelector("video");
  if (video.ended) {
    ok(true, "video reached to end!");
  } else {
    await new Promise(r => (video.onended = r));
  }
  // Remove current video so that we can check next video later.
  document.body.removeChild(video);
}

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