RTCEncodedVideoFrameMetadata-timestamp.html

<!DOCTYPE html>
<title>Test RTCEncodedVideoFrameMetadata.timestamp matches a unencoded frame timestamp</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="resources/RTCPeerConnection-helper.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());
exchangeIceCandidates(caller, callee);

const stream = await navigator.mediaDevices.getUserMedia({ video: true });
const videoTrack = stream.getVideoTracks()[0];
t.add_cleanup(() => videoTrack.stop());

const trackProcessor = new MediaStreamTrackProcessor({ track: videoTrack });
const trackGenerator = new MediaStreamTrackGenerator({ kind: 'video' });
t.add_cleanup(() => trackGenerator.stop());

const senderTransceiver = caller.addTransceiver(trackGenerator);
const senderStreams = senderTransceiver.sender.createEncodedStreams();
const senderReader = senderStreams.readable.getReader();

await exchangeOfferAnswer(caller, callee);

let originalTimestamp;
const transformer = new TransformStream({
    async transform(videoFrame, controller) {
        originalTimestamp = videoFrame.timestamp;
        controller.enqueue(videoFrame);
    },
});

trackProcessor.readable.pipeThrough(transformer).pipeTo(trackGenerator.writable);
const metadata = (await senderReader.read()).value.getMetadata();
assert_equals(originalTimestamp, metadata.timestamp);
}, "timestamp identifier is propagated from VideoFrame to RTCEncodedVideoFrame");

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());
exchangeIceCandidates(caller, callee);

const stream = await navigator.mediaDevices.getUserMedia({ video: true });
const videoTrack = stream.getVideoTracks()[0];
t.add_cleanup(() => videoTrack.stop());

const trackProcessor = new MediaStreamTrackProcessor({ track: videoTrack });
const trackGenerator = new MediaStreamTrackGenerator({ kind: 'video' });
t.add_cleanup(() => trackGenerator.stop());

const senderTransceiver = caller.addTransceiver(trackGenerator);
const senderStreams = senderTransceiver.sender.createEncodedStreams();
const senderReader = senderStreams.readable.getReader();

await exchangeOfferAnswer(caller, callee);

let originalTimestamp;
const transformer = new TransformStream({
    async transform(videoFrame, controller) {
        originalTimestamp = videoFrame.timestamp;
        let newVideoFrame = new VideoFrame(videoFrame, {timestamp: originalTimestamp})
        videoFrame.close();
        controller.enqueue(newVideoFrame);
    },
});

trackProcessor.readable.pipeThrough(transformer).pipeTo(trackGenerator.writable);
const metadata = (await senderReader.read()).value.getMetadata();
assert_equals(originalTimestamp, metadata.timestamp);
}, "timestamp identifier is propagated from newly created VideoFrame to RTCEncodedVideoFrame");
</script>
chromium/third_party/blink/web_tests/fast/peerconnection/RTCEncodedVideoFrameMetadata-timestamp.html
