RTCPeerConnection-insertable-streams-video-frames.https.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webrtc-encoded-transform/tentative/RTCPeerConnection-insertable-streams-video-frames.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<title>RTCPeerConnection Insertable Streams - Video Frames</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="./RTCPeerConnection-insertable-streams.js"></script>

</head>

<body>

<script>

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 track = stream.getTracks()[0];

  t.add_cleanup(() => track.stop());

  const sender = caller.addTrack(track)

  const senderStreams = sender.createEncodedStreams();

  const senderReader = senderStreams.readable.getReader();

  const senderWriter = senderStreams.writable.getWriter();

  const numFramesToSend = 20;

  const ontrackPromise = new Promise((resolve, reject) => {

    callee.ontrack = async e => {

      const receiverStreams = e.receiver.createEncodedStreams();

      const receiverReader = receiverStreams.readable.getReader();

      let numReceivedKeyFrames = 0;

      let numReceivedDeltaFrames = 0;

      for (let i = 0; i < numFramesToSend; i++) {

        const result = await receiverReader.read();

        if (result.value.type == 'key')

          numReceivedKeyFrames++;

        else if (result.value.type == 'delta')

          numReceivedDeltaFrames++;

        if (numReceivedKeyFrames > 0 && numReceivedDeltaFrames > 0)

          resolve();

        else if (numReceivedKeyFrames + numReceivedDeltaFrames >= numFramesToSend)

          reject();

});

  exchangeIceCandidates(caller, callee);

  await exchangeOfferAnswer(caller, callee);

  let numSentKeyFrames = 0;

  let numSentDeltaFrames = 0;

  // Pass frames as they come from the encoder.

  for (let i = 0; i < numFramesToSend; i++) {

    const result = await senderReader.read();

    verifyNonstandardAdditionalDataIfPresent(result.value);

    if (result.value.type == 'key') {

      numSentKeyFrames++;

    } else {

      numSentDeltaFrames++;

    senderWriter.write(result.value);

  assert_greater_than(numSentKeyFrames, 0);

  assert_greater_than(numSentDeltaFrames, 0);

  return ontrackPromise;

}, 'Key and Delta frames are sent and received');

</script>

</body>

</html>