test_peerConnection_trackDisabling.html

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<!DOCTYPE HTML>

<html>

<head>

  <script type="application/javascript" src="pc.js"></script>

  <script type="application/javascript" src="/tests/dom/canvas/test/captureStream_common.js"></script>

</head>

<body>

<pre id="test">

<script type="application/javascript">

createHTML({

  bug: "1219711",

  title: "Disabling locally should be reflected remotely"

});

runNetworkTest(async () => {

  const test = new PeerConnectionTest();

  await pushPrefs(

    ["media.getusermedia.camera.stop_on_disable.enabled", true],

    ["media.getusermedia.camera.stop_on_disable.delay_ms", 0],

    ["media.getusermedia.microphone.stop_on_disable.enabled", true],

    ["media.getusermedia.microphone.stop_on_disable.delay_ms", 0],

    // Always use fake tracks since we depend on video to be somewhat green and

    // audio to have a large 1000Hz component.

    ['media.audio_loopback_dev', ''],

    ['media.video_loopback_dev', ''],

    ['media.navigator.streams.fake', true]);

  test.setMediaConstraints([{audio: true, video: true}], []);

  test.chain.append([

    function CHECK_ASSUMPTIONS() {

      is(test.pcLocal.localMediaElements.length, 2,

         "pcLocal should have one media element");

      is(test.pcRemote.remoteMediaElements.length, 2,

         "pcRemote should have one media element");

      is(test.pcLocal._pc.getLocalStreams().length, 1,

         "pcLocal should have one stream");

      is(test.pcRemote._pc.getRemoteStreams().length, 1,

         "pcRemote should have one stream");

},

    async function CHECK_VIDEO() {

      const h = new CaptureStreamTestHelper2D();

      const localVideo = test.pcLocal.localMediaElements

        .find(e => e instanceof HTMLVideoElement);

      const remoteVideo = test.pcRemote.remoteMediaElements

        .find(e => e instanceof HTMLVideoElement);

      // We check a pixel somewhere away from the top left corner since

      // MediaEngineFake puts semi-transparent time indicators there.

      const offsetX = 50;

      const offsetY = 50;

      const threshold = 128;

      // We're regarding black as disabled here, and we're setting the alpha

      // channel of the pixel to 255 to disregard alpha when testing.

      const checkVideoEnabled = video => h.waitForPixel(video,

        px => {

          px[3] = 255;

          return h.isPixelNot(px, h.black, threshold);

},

        { offsetX, offsetY }

);

      const checkVideoDisabled = video => h.waitForPixel(video,

        px => {

          px[3] = 255;

          return h.isPixel(px, h.black, threshold);

},

        { offsetX, offsetY }

);

      info("Checking local video enabled");

      await checkVideoEnabled(localVideo);

      info("Checking remote video enabled");

      await checkVideoEnabled(remoteVideo);

      info("Disabling original");

      test.pcLocal._pc.getLocalStreams()[0].getVideoTracks()[0].enabled = false;

      info("Checking local video disabled");

      await checkVideoDisabled(localVideo);

      info("Checking remote video disabled");

      await checkVideoDisabled(remoteVideo);

},

    async function CHECK_AUDIO() {

      const ac = new AudioContext();

      const localAnalyser = new AudioStreamAnalyser(ac, test.pcLocal._pc.getLocalStreams()[0]);

      const remoteAnalyser = new AudioStreamAnalyser(ac, test.pcRemote._pc.getRemoteStreams()[0]);

      const checkAudio = (analyser, fun) => analyser.waitForAnalysisSuccess(fun);

      const freq = localAnalyser.binIndexForFrequency(TEST_AUDIO_FREQ);

      const checkAudioEnabled = analyser =>

        checkAudio(analyser, array => array[freq] > 200);

      const checkAudioDisabled = analyser =>

        checkAudio(analyser, array => array[freq] < 50);

      info("Checking local audio enabled");

      await checkAudioEnabled(localAnalyser);

      info("Checking remote audio enabled");

      await checkAudioEnabled(remoteAnalyser);

      test.pcLocal._pc.getLocalStreams()[0].getAudioTracks()[0].enabled = false;

      info("Checking local audio disabled");

      await checkAudioDisabled(localAnalyser);

      info("Checking remote audio disabled");

      await checkAudioDisabled(remoteAnalyser);

},

]);

  await test.run();

});

</script>

</pre>

</body>

</html>