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<!DOCTYPE html>
<meta charset="utf-8">
<title>RTCEncodedAudioFrame 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 caller1 = new RTCPeerConnection();
t.add_cleanup(() => caller1.close());
const callee1 = new RTCPeerConnection({encodedInsertableStreams:true});
t.add_cleanup(() => callee1.close());
await setMediaPermission("granted", ["microphone"]);
const inputStream = await navigator.mediaDevices.getUserMedia({audio:true});
const inputTrack = inputStream.getAudioTracks()[0];
t.add_cleanup(() => inputTrack.stop());
caller1.addTrack(inputTrack)
exchangeIceCandidates(caller1, callee1);
const caller2 = new RTCPeerConnection({encodedInsertableStreams:true});
t.add_cleanup(() => caller2.close());
const sender2 = caller2.addTransceiver("audio").sender;
const writer2 = sender2.createEncodedStreams().writable.getWriter();
sender2.replaceTrack(new MediaStreamTrackGenerator({ kind: 'audio' }));
const framesReceivedCorrectly = new Promise((resolve, reject) => {
callee1.ontrack = async e => {
const receiverStreams = e.receiver.createEncodedStreams();
const receiverReader = receiverStreams.readable.getReader();
const result = await receiverReader.read();
const original = result.value;
let clone = original.clone();
assert_equals(original.timestamp, clone.timestamp);
assert_array_equals(Array.from(original.data), Array.from(clone.data));
await writer2.write(clone);
resolve();
}
});
await exchangeOfferAnswer(caller1, callee1);
return framesReceivedCorrectly;
}, "Cloning before sending works");
</script>
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