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<!DOCTYPE html>
<meta charset="utf-8">
<title>RTCEncodedVideoFrame can be cloned and distributed</title>
<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>
<script src="../webrtc/RTCPeerConnection-helper.js"></script>
<script src="../service-workers/service-worker/resources/test-helpers.sub.js"></script>
<script>
"use strict";
promise_test(async t => {
const caller = new RTCPeerConnection({encodedInsertableStreams:true});
t.add_cleanup(() => caller.close());
const callee = new RTCPeerConnection({encodedInsertableStreams:true});
t.add_cleanup(() => callee.close());
await setMediaPermission("granted", ["camera"]);
const stream = await navigator.mediaDevices.getUserMedia({video:true});
const videoTrack = stream.getVideoTracks()[0];
t.add_cleanup(() => videoTrack.stop());
const videoSender = caller.addTrack(videoTrack)
const senderStreams = videoSender.createEncodedStreams();
const senderReader = senderStreams.readable.getReader();
const senderWriter = senderStreams.writable.getWriter();
exchangeIceCandidates(caller, callee);
// Send 10 frames and stop
const numFramesToSend = 10;
const framesReceivedCorrectly = new Promise((resolve, reject) => {
callee.ontrack = async e => {
const receiverStreams = e.receiver.createEncodedStreams();
const receiverReader = receiverStreams.readable.getReader();
const receiverWriter = receiverStreams.writable.getWriter();
// This should all be able to happen in 5 seconds.
// For fast failures, uncomment this line.
// t.step_timeout(reject, 5000);
for (let i = 0; i < numFramesToSend; i++) {
const result = await receiverReader.read();
// Write upstream, purely to avoid "no frame received" error messages
receiverWriter.write(result.value);
}
resolve();
}
});
await exchangeOfferAnswer(caller, callee);
for (let i = 0; i < numFramesToSend; i++) {
const result = await senderReader.read();
senderWriter.write(result.value.clone());
}
return framesReceivedCorrectly;
}, "Cloning before sending works");
</script>
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