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53 lines
2.1 KiB
HTML
53 lines
2.1 KiB
HTML
<!doctype html>
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<html>
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<head>
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<title>A disabled video track is rendered as blackness</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#introduction">
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<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#mediastreams-as-media-elements">
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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 a disabled video track in a
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MediaStream is rendered as blackness.</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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var vid = document.getElementById("vid");
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var cv = document.createElement("canvas");
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var t = async_test("Tests that a disabled video track in a MediaStream is rendered as blackness", {timeout: 10000});
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t.step(function() {
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navigator.mediaDevices.getUserMedia({video: true})
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.then(t.step_func(function (stream) {
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if (stream.getVideoTracks()[0].enabled) {
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stream.getVideoTracks()[0].enabled = false;
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}
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var testOnceLoadeddata = t.step_func(function() {
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vid.removeEventListener("loadeddata", testOnceLoadeddata, false);
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cv.width = vid.offsetWidth;
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cv.height = vid.offsetHeight;
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var ctx = cv.getContext("2d");
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ctx.drawImage(vid,0,0);
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var imageData = ctx.getImageData(0, 0, cv.width, cv.height);
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for (var i = 0; i < imageData.data.length; i+=4) {
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assert_equals(imageData.data[i], 0, "No red component in pixel #" + i);
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assert_equals(imageData.data[i + 1], 0, "No green component in pixel #" + i);
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assert_equals(imageData.data[i + 2], 0, "No blue component in pixel #" + i);
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assert_equals(imageData.data[i + 3], 255, "No transparency in pixel #" + i);
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}
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t.done();
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});
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vid.srcObject = stream;
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vid.play();
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vid.addEventListener("loadeddata", testOnceLoadeddata, false);
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}));
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});
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</script>
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</body>
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</html>
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