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Test Info: Warnings
- This test has a WPT meta file that disables it given conditions:
- This WPT test may be referenced by the following Test IDs:
- /webrtc-encoded-transform/script-late-transform.https.html - WPT Dashboard Interop Dashboard
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-vendor.js></script>
<script src='../mediacapture-streams/permission-helper.js'></script>
</head>
<body>
<video controls id="video" autoplay></video>
<canvas id="canvas" width="640" height="480"></canvas>
<script src ="routines.js"></script>
<script>
function grabFrameData(x, y, w, h)
{
canvas.width = video.videoWidth;
canvas.height = video.videoHeight;
canvas.getContext('2d').drawImage(video, x, y, w, h, x, y, w, h);
return canvas.getContext('2d').getImageData(x, y, w, h).data;
}
function getCircleImageData()
{
return grabFrameData(450, 100, 150, 100);
}
async function checkVideoIsUpdated(test, shouldBeUpdated, count, referenceData)
{
if (count === undefined)
count = 0;
else if (count >= 20)
return Promise.reject("checkVideoIsUpdated timed out :" + shouldBeUpdated + " " + count);
if (referenceData === undefined)
referenceData = getCircleImageData();
await waitFor(test, 200);
const newData = getCircleImageData();
if (shouldBeUpdated === (JSON.stringify(referenceData) !== JSON.stringify(newData)))
return;
await checkVideoIsUpdated(test, shouldBeUpdated, ++count, newData);
}
promise_test(async (test) => {
await setMediaPermission("granted", ["camera"]);
const localStream = await navigator.mediaDevices.getUserMedia({video: true});
const senderTransform = new SFrameTransform({ compatibilityMode: "H264" });
const receiverTransform = new SFrameTransform({ compatibilityMode: "H264" });
await crypto.subtle.importKey("raw", new Uint8Array([143, 77, 43, 10, 72, 19, 37, 67, 236, 219, 24, 93, 26, 165, 91, 178]), "HKDF", false, ["deriveBits", "deriveKey"]).then(key => {
senderTransform.setEncryptionKey(key);
receiverTransform.setEncryptionKey(key);
});
let sender, receiver;
const stream = await new Promise((resolve, reject) => {
createConnections(test, (firstConnection) => {
pc1 = firstConnection;
sender = firstConnection.addTrack(localStream.getVideoTracks()[0], localStream);
sender.transform = senderTransform;
}, (secondConnection) => {
pc2 = secondConnection;
secondConnection.ontrack = (trackEvent) => {
receiver = trackEvent.receiver;
// we do not set the receiver transform here;
resolve(trackEvent.streams[0]);
};
}, {
observeOffer : (offer) => {
const lines = offer.sdp.split('\r\n');
const h264Lines = lines.filter(line => line.indexOf("a=fmtp") === 0 && line.indexOf("42e01f") !== -1);
const baselineNumber = h264Lines[0].substring(6).split(' ')[0];
offer.sdp = lines.filter(line => {
return (line.indexOf('a=fmtp') === -1 && line.indexOf('a=rtcp-fb') === -1 && line.indexOf('a=rtpmap') === -1) || line.indexOf(baselineNumber) !== -1;
}).join('\r\n');
}
});
test.step_timeout(() => reject("Test timed out"), 5000);
});
video.srcObject = stream;
video.play();
// We set the receiver transform here so that the decoder probably tried to decode sframe content.
test.step_timeout(() => receiver.transform = receiverTransform, 50);
await checkVideoIsUpdated(test, true);
}, "video exchange with late receiver transform");
</script>
</body>
</html>