RTCRtpScriptTransform-sender-worker-single-frame.https.html

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webrtc-encoded-transform/RTCRtpScriptTransform-sender-worker-single-frame.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<title>RTCRtpScriptTransform Insertable Streams - Worker</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>

</head>

<body>

<script>

function areArrayBuffersEqual(buffer1, buffer2)

  if (buffer1.byteLength !== buffer2.byteLength) {

    return false;

  let array1 = new Int8Array(buffer1);

  var array2 = new Int8Array(buffer2);

  for (let i = 0 ; i < buffer1.byteLength ; ++i) {

    if (array1[i] !== array2[i]) {

      return false;

  return true;

promise_test(async t => {

  const caller = new RTCPeerConnection();

  t.add_cleanup(() => caller.close());

  const callee = new RTCPeerConnection();

  t.add_cleanup(() => callee.close());

  // Video is used in a later test, so we ask for both permissions

  await setMediaPermission();

  const stream = await navigator.mediaDevices.getUserMedia({audio:true});

  const track = stream.getTracks()[0];

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

  const audioSender = caller.addTrack(track);

  const senderWorker = new Worker('RTCRtpScriptTransform-sender-worker-single-frame.js');

  audioSender.transform = new RTCRtpScriptTransform(senderWorker);

  t.add_cleanup(() => senderWorker.terminate());

  let expectedFrameInfo = null;

  let numVerifiedFrames = 0;

  const onmessagePromise = new Promise(resolve => {

    senderWorker.onmessage = t.step_func(message => {

      if (!(message.data instanceof RTCEncodedAudioFrame)) {

        // This is the first message sent from the Worker to the test.

        // It contains an object (not an RTCEncodedAudioFrame) with the same

        // fields as the RTCEncodedAudioFrame to be sent in follow-up messages.

        // These serve as expected values to validate that the

        // RTCEncodedAudioFrame is sent correctly back to the test in the next

        // message.

        expectedFrameInfo = message.data;

      } else {

        // This is the frame sent by the Worker after reading it from the

        // readable stream. The Worker sends it twice after sending the

        // verification message.

        const frame = message.data;

        assert_equals(frame.type, expectedFrameInfo.type);

        assert_true(areArrayBuffersEqual(frame.data, expectedFrameInfo.data));

        assert_equals(frame.getMetadata().synchronizationSource, expectedFrameInfo.metadata.synchronizationSource);

        assert_equals(frame.getMetadata().rtpTimestamp, expectedFrameInfo.metadata.rtpTimestamp);

        if (++numVerifiedFrames == 2)

          resolve();

});

});

  exchangeIceCandidates(caller, callee);

  await exchangeOfferAnswer(caller, callee);

  return onmessagePromise;

}, 'RTCRtpSender initializes its transform attribute and the Worker sends an RTCEncodedAudioFrame back');

promise_test(async t => {

  const caller = new RTCPeerConnection();

  t.add_cleanup(() => caller.close());

  const callee = new RTCPeerConnection();

  t.add_cleanup(() => callee.close());

  const stream = await navigator.mediaDevices.getUserMedia({video:true});

  const videoTrack = stream.getVideoTracks()[0];

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

  const videoSender = caller.addTrack(videoTrack)

  const senderWorker = new Worker('RTCRtpScriptTransform-sender-worker-single-frame.js');

  videoSender.transform = new RTCRtpScriptTransform(senderWorker);

  t.add_cleanup(() => senderWorker.terminate());

  let expectedFrameInfo = null;

  let numVerifiedFrames = 0;

  const onmessagePromise = new Promise(resolve => {

    senderWorker.onmessage = t.step_func(message => {

      if (!(message.data instanceof RTCEncodedVideoFrame)) {

        // This is the first message sent from the Worker to the test.

        // It contains an object (not an RTCEncodedVideoFrame) with the same

        // fields as the RTCEncodedVideoFrame to be sent in follow-up messages.

        // These serve as expected values to validate that the

        // RTCEncodedVideoFrame is sent correctly back to the test in the next

        // message.

        expectedFrameInfo = message.data;

      } else {

        // This is the frame sent by the Worker after reading it from the

        // readable stream. The Worker sends it twice after sending the

        // verification message.

        const frame = message.data;

        assert_equals(frame.type, expectedFrameInfo.type);

        assert_true(areArrayBuffersEqual(frame.data, expectedFrameInfo.data));

        assert_equals(frame.getMetadata().synchronizationSource, expectedFrameInfo.metadata.synchronizationSource);

        assert_equals(frame.getMetadata().rtpTimestamp, expectedFrameInfo.metadata.rtpTimestamp);

        if (++numVerifiedFrames == 2)

          resolve();

});

});

  exchangeIceCandidates(caller, callee);

  await exchangeOfferAnswer(caller, callee);

  return onmessagePromise;

}, 'RTCRtpSender initializes its transform attribute and the Worker sends an RTCEncodedVideoFrame back');

</script>

</body>

</html>