зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
3.0 KiB
HTML
93 строки
3.0 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<script type="application/javascript" src="pc.js"></script>
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</head>
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<body>
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<pre id="test">
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<script type="application/javascript">
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createHTML({
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bug: "1244913",
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title: "Scale resolution down on a PeerConnection",
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visible: true
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});
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var mustRejectWith = (msg, reason, f) =>
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f().then(() => ok(false, msg),
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e => is(e.name, reason, msg));
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async function testScale(codec) {
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var pc1 = new RTCPeerConnection();
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var pc2 = new RTCPeerConnection();
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var add = (pc, can, failed) => can && pc.addIceCandidate(can).catch(failed);
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pc1.onicecandidate = e => add(pc2, e.candidate, generateErrorCallback());
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pc2.onicecandidate = e => add(pc1, e.candidate, generateErrorCallback());
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info("testing scaling with " + codec);
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let stream = await navigator.mediaDevices.getUserMedia({ video: true });
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var v1 = createMediaElement('video', 'v1');
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var v2 = createMediaElement('video', 'v2');
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var ontrackfired = new Promise(resolve => pc2.ontrack = e => resolve(e));
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var v2loadedmetadata = new Promise(resolve => v2.onloadedmetadata = resolve);
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is(v2.currentTime, 0, "v2.currentTime is zero at outset");
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v1.srcObject = stream;
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var sender = pc1.addTrack(stream.getVideoTracks()[0], stream);
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await mustRejectWith(
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"Invalid scaleResolutionDownBy must reject", "RangeError",
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() => sender.setParameters(
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{ encodings:[{ scaleResolutionDownBy: 0.5 } ] })
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);
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await sender.setParameters({ encodings: [{ maxBitrate: 60000,
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scaleResolutionDownBy: 2 }] });
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let offer = await pc1.createOffer();
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if (codec == "VP8") {
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offer.sdp = sdputils.removeAllButPayloadType(offer.sdp, 126);
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}
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await pc1.setLocalDescription(offer);
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await pc2.setRemoteDescription(pc1.localDescription);
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let answer = await pc2.createAnswer();
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await pc2.setLocalDescription(answer);
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await pc1.setRemoteDescription(pc2.localDescription);
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let trackevent = await ontrackfired;
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v2.srcObject = trackevent.streams[0];
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await v2loadedmetadata;
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await waitUntil(() => v2.currentTime > 0);
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ok(v2.currentTime > 0, "v2.currentTime is moving (" + v2.currentTime + ")");
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ok(v1.videoWidth > 0, "source width is positive");
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ok(v1.videoHeight > 0, "source height is positive");
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is(v2.videoWidth, v1.videoWidth / 2, "sink is half the width of source");
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is(v2.videoHeight, v1.videoHeight / 2, "sink is half the height of source");
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stream.getTracks().forEach(track => track.stop());
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v1.srcObject = v2.srcObject = null;
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pc1.close()
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pc2.close()
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}
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runNetworkTest(async () => {
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await pushPrefs(['media.peerconnection.video.lock_scaling', true]);
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await testScale("VP8");
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if (!navigator.appVersion.includes("Android")) {
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// No support for H.264 on Android in automation, see Bug 1355786
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await testScale("H264");
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}
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networkTestFinished();
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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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