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73 lines
3.6 KiB
HTML
73 lines
3.6 KiB
HTML
<!doctype html>
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<html>
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<head>
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<title>Assigning mediastream to a video element</title>
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<link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/>
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<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#navigatorusermedia">
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</head>
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<body>
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<p class="instructions">When prompted, accept to share your video stream.</p>
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<h1 class="instructions">Description</h1>
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<p class="instructions">This test checks that the MediaStream object returned by
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the success callback in getUserMedia can be properly assigned to a video element
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via the <code>srcObject</code> attribute.</p>
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<video id="vid"></video>
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<div id='log'></div>
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<script src=/resources/testharness.js></script>
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<script src=/resources/testharnessreport.js></script>
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<script>
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'use strict';
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const vid = document.getElementById("vid");
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promise_test(async t => {
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const wait = ms => new Promise(r => t.step_timeout(r, ms));
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const timeout = (promise, time, msg) =>
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Promise.race([promise, wait(time).then(() => Promise.reject(new Error(msg)))]);
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const stream = await timeout(navigator.mediaDevices.getUserMedia({video: true}), 10000, "getUserMedia timeout");
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t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
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vid.defaultPlaybackRate = 0.4;
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vid.playbackRate = 0.4;
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vid.preload = "metadata";
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vid.srcObject = stream;
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vid.onratechange = t.unreached_func('ratechange event must not be fired');
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vid.play();
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assert_true(!vid.seeking, "A MediaStream is not seekable");
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assert_equals(vid.seekable.length, 0, "A MediaStream is not seekable");
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assert_equals(vid.defaultPlaybackRate, 1, "playback rate is always 1");
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vid.defaultPlaybackRate = 0.5;
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assert_equals(vid.defaultPlaybackRate, 1, "Setting defaultPlaybackRate must be ignored");
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assert_equals(vid.playbackRate, 1, "playback rate is always 1");
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vid.playbackRate = 0.5;
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assert_equals(vid.playbackRate, 1, "Setting playbackRate must be ignored");
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assert_equals(vid.buffered.length, 0, "A MediaStream cannot be preloaded. Therefore, there is no buffered timeranges");
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assert_equals(vid.readyState, vid.HAVE_NOTHING, "readyState is HAVE_NOTHING initially");
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assert_equals(vid.duration, NaN, "A MediaStream does not have any duration initially.");
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assert_equals(vid.preload, "none", "preload must always be none");
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vid.preload = "metadata";
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assert_equals(vid.preload, "none", "Setting preload must be ignored");
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const haveLoadedData = new Promise(r => vid.addEventListener("loadeddata", r, {once: true}));
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await new Promise(r => vid.addEventListener("timeupdate", r, {once: true}));
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assert_equals(vid.played.length, 1, "A MediaStream's timeline always consists of a single range");
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assert_equals(vid.played.start(0), 0, "A MediaStream's timeline always starts at zero");
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assert_equals(vid.played.end(0), vid.currentTime, "A MediaStream's end MUST return the last known currentTime, says mediacapture-main");
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assert_equals(vid.duration, Infinity, "A MediaStream does not have a pre-defined duration. ");
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const time = vid.currentTime;
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vid.currentTime = 0;
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assert_equals(vid.currentTime, time, "The UA MUST ignore attempts to set the currentTime attribute");
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await haveLoadedData;
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assert_equals(vid.readyState, vid.HAVE_ENOUGH_DATA, "Upon having loaded a media stream, the UA sets readyState to HAVE_ENOUGH_DATA");
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assert_equals(vid.duration, Infinity, "A MediaStream does not have a pre-defined duration.");
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// TODO add test that duration must be set to currentTime
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// when mediastream is destroyed
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}, "Tests that a MediaStream can be assigned to a video element with srcObject");
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</script>
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</body>
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</html>
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