request-video-frame-callback-during-xr-session.https.html

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /video-rvfc/request-video-frame-callback-during-xr-session.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<title>Test that video.rVFC callbacks started during an XRSession work.</title>

<body>

    <canvas></canvas>

</body>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/common/media.js"></script>

<script src="../webxr/resources/webxr_util.js"></script>

<script src="../webxr/resources/webxr_test_constants.js"></script>

<script>

let testFunction = async function(session, fakeDeviceController, t) {

    let watcherDone = new Event("watcherdone");

    let eventWatcher = new EventWatcher(t, session, ["end", "watcherdone"]);

    let eventPromise = eventWatcher.wait_for(["end", "watcherdone"]);

    // Start the video.rVFC callbacks while we are in the the XR Session.

    let video = document.createElement('video');

    video.muted = true;

    video.src = getVideoURI('/media/movie_5');

    var numberVFCs = 0;

    let videoCallback = () => {

        numberVFCs++;

        video.requestVideoFrameCallback(videoCallback);

    video.requestVideoFrameCallback(videoCallback);

    video.play();

    function onXRFrame(time, frame) {

        if(numberVFCs >= 2) {

            // Make sure video.rVFCs are coming through before ending the

            // session.

            session.end();

        session.requestAnimationFrame(onXRFrame);

    function onSessionEnd(event) {

        // Make sure we are still getting rVFC callbacks after the session end.

        numberVFCs = 0;

        t.step_wait_func(() => numberVFCs >= 2,

                         () => session.dispatchEvent(watcherDone),

                         "Time out waiting for VFC callbacks");

    session.addEventListener("end", onSessionEnd, false);

    session.requestAnimationFrame(onXRFrame);

    return eventPromise;

xr_session_promise_test('Make sure video.rVFC callbacks started during an immersive session continue after it ends',

    testFunction, TRACKED_IMMERSIVE_DEVICE, 'immersive-vr');

</script>

</html>