test_peerConnection_setParameters_maxFramerate.html

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<!DOCTYPE HTML>

<html>

<head>

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

</head>

<body>

<pre id="test">

<script type="application/javascript">

createHTML({

  bug: "1611957",

  title: "Live-updating maxFramerate"

});

let sender, receiver;

async function checkMaxFrameRate(rate) {

  const parameters = sender.getParameters();

  parameters.encodings[0].maxFramerate = rate;

  await sender.setParameters(parameters);

  await wait(2000);

  const stats = Array.from((await receiver.getStats()).values());

  const inboundRtp = stats.find(stat => stat.type == "inbound-rtp");

  info(`inbound-rtp stats: ${JSON.stringify(inboundRtp)}`);

  const fps = inboundRtp.framesPerSecond;

  ok(fps <= (rate * 1.1) + 1,

    `fps is an appropriate value (${fps}) for rate (${rate})`);

runNetworkTest(async function (options) {

  let test = new PeerConnectionTest(options);

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

  test.chain.append([

    function CHECK_PRECONDITIONS() {

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

        "Should have 1 local sender");

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

        "Should have 1 remote receiver");

      sender = test.pcLocal._pc.getSenders()[0];

      receiver = test.pcRemote._pc.getReceivers()[0];

},

    function PC_LOCAL_SET_MAX_FRAMERATE_2() {

      return checkMaxFrameRate(2);

},

    function PC_LOCAL_SET_MAX_FRAMERATE_4() {

      return checkMaxFrameRate(4);

},

    function PC_LOCAL_SET_MAX_FRAMERATE_15() {

      return checkMaxFrameRate(15);

},

    function PC_LOCAL_SET_MAX_FRAMERATE_8() {

      return checkMaxFrameRate(8);

},

    function PC_LOCAL_SET_MAX_FRAMERATE_1() {

      return checkMaxFrameRate(1);

},

]);

  await test.run();

});

</script>

</pre>

</body>

</html>