forked from mirrors/gecko-dev
887634a649
Backed out changeset 296d5facd7bd (bug 1665713) Backed out changeset 770d63754715 (bug 1665713) Backed out changeset 433d8f92b482 (bug 1665713)
91 lines
3 KiB
HTML
91 lines
3 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<script type="application/javascript" src="/tests/dom/canvas/test/captureStream_common.js"></script>
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<script type="application/javascript" src="mediaStreamPlayback.js"></script>
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</head>
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<body>
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<pre id="test">
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<script>
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createHTML({
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bug: "1259788",
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title: "Test CaptureStream video content on HTMLMediaElement playing a gUM MediaStream",
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visible: true
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});
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var gUMVideoElement;
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var captureStreamElement;
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const pausedTimeout = 1000;
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let h;
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runTest(async () => {
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try {
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await pushPrefs(
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// This test expects fake video devices, as it expects captured frames to
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// shift over time, which is not currently provided by loopback devices
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['media.video_loopback_dev', ''],
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['media.navigator.streams.fake', true]);
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let stream = await getUserMedia({video: true});
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h = new VideoStreamHelper();
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gUMVideoElement =
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createMediaElement("video", "gUMVideo");
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gUMVideoElement.srcObject = stream;
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gUMVideoElement.play();
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info("Capturing");
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captureStreamElement =
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createMediaElement("video", "captureStream");
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captureStreamElement.srcObject = gUMVideoElement.mozCaptureStream();
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captureStreamElement.play();
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await h.checkVideoPlaying(captureStreamElement);
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// Adding a dummy audio track to the stream will keep a consuming media
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// element from ending.
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// We could also solve it by repeatedly play()ing or autoplay, but then we
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// wouldn't be sure the media element stopped rendering video because it
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// went to the ended state or because there were no frames for the track.
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let osc = createOscillatorStream(new AudioContext(), 1000);
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captureStreamElement.srcObject.addTrack(osc.getTracks()[0]);
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info("Video flowing. Pausing.");
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gUMVideoElement.pause();
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await h.checkVideoPaused(captureStreamElement, { time: pausedTimeout });
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info("Video stopped flowing. Playing.");
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gUMVideoElement.play();
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await h.checkVideoPlaying(captureStreamElement);
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info("Video flowing. Removing source.");
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stream = gUMVideoElement.srcObject;
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gUMVideoElement.srcObject = null;
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await h.checkVideoPaused(captureStreamElement, { time: pausedTimeout });
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info("Video stopped flowing. Setting source.");
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gUMVideoElement.srcObject = stream;
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await h.checkVideoPlaying(captureStreamElement);
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info("Video flowing. Changing source by track manipulation. Remove first.");
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let track = gUMVideoElement.srcObject.getTracks()[0];
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gUMVideoElement.srcObject.removeTrack(track);
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await h.checkVideoPaused(captureStreamElement, { time: pausedTimeout });
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info("Video paused. Changing source by track manipulation. Add first.");
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gUMVideoElement.srcObject.addTrack(track);
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gUMVideoElement.play();
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await h.checkVideoPlaying(captureStreamElement);
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gUMVideoElement.srcObject.getTracks().forEach(t => t.stop());
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ok(true, "Test passed.");
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} catch (e) {
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ok(false, "Test failed: " + e + (e.stack ? "\n" + e.stack : ""));
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}
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});
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</script>
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</pre>
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</body>
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</html>
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