66 lines
2.5 KiB
HTML
66 lines
2.5 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<meta name="timeout" content="long">
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<title></title>
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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 src="RTCPeerConnection-helper.js"></script>
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<script>
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'use strict';
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// A generous testing duration that will not time out on bots.
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const kEncodeDurationMs = 10000;
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// The crash this test aims to repro was easy to reproduce using a normal
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// getUserMedia() track when running the browser normally, e.g. by navigating
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// to https://jsfiddle.net/henbos/fc7gk3ve/11/. But for some reason, the fake
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// tracks returned by getUserMedia() when inside this testing environment had
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// a much harder time with reproducibility.
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//
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// By creating a high FPS canvas capture track we are able to repro reliably
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// in this WPT environment as well.
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function whiteNoise(width, height) {
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const canvas =
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Object.assign(document.createElement('canvas'), {width, height});
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const ctx = canvas.getContext('2d');
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ctx.fillRect(0, 0, width, height);
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const p = ctx.getImageData(0, 0, width, height);
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requestAnimationFrame(function draw () {
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for (let i = 0; i < p.data.length; i++) {
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const color = Math.random() * 255;
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p.data[i++] = color;
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p.data[i++] = color;
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p.data[i++] = color;
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}
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ctx.putImageData(p, 0, 0);
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requestAnimationFrame(draw);
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});
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return canvas.captureStream();
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}
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promise_test(async t => {
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const pc1 = new RTCPeerConnection();
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t.add_cleanup(() => pc1.close());
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const pc2 = new RTCPeerConnection();
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t.add_cleanup(() => pc2.close());
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const stream = whiteNoise(640, 480);
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const [track] = stream.getTracks();
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const t1 = pc1.addTransceiver("video", {direction:"sendonly"});
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const t2 = pc1.addTransceiver("video", {direction:"sendonly"});
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await t1.sender.replaceTrack(track);
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await t2.sender.replaceTrack(track);
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exchangeIceCandidates(pc1, pc2);
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await pc1.setLocalDescription();
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await pc2.setRemoteDescription(pc1.localDescription);
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await pc2.setLocalDescription();
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await pc1.setRemoteDescription(pc2.localDescription);
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// In Chromium, each sender instantiates a VideoStreamEncoder during
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// negotiation. This test reproduces https://crbug.com/webrtc/11485 where a
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// race causes a crash when multiple VideoStreamEncoders are encoding the
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// same MediaStreamTrack.
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await new Promise(resolve => t.step_timeout(resolve, kEncodeDurationMs));
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}, "Two RTCRtpSenders encoding the same track");
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</script>
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