test_peerConnection_twoAudioVideoStreamsCombined.html

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<head>

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

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

</head>

<body>

<pre id="test">

<script type="application/javascript">

  createHTML({

    bug: "1091242",

    title: "Multistream: Two audio/video streams"

});

  runNetworkTest(async (options) => {

    // Disable platform encodre for SW MFT encoder causes some stats

    // exceeding the test thresholds.

    // E.g. inbound-rtp.packetsDiscarded value=118 >= 100.

    await matchPlatformH264CodecPrefs();

    const test = new PeerConnectionTest(options);

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

                                {audio: true, video: true}],

                             [{audio: true, video: true},

                                {audio: true, video: true}]);

    // Test stats, including coalescing of codec stats.

    test.chain.insertAfter("PC_LOCAL_WAIT_FOR_MEDIA_FLOW",

      [PC_LOCAL_TEST_LOCAL_STATS]);

    test.chain.insertAfter("PC_REMOTE_WAIT_FOR_MEDIA_FLOW",

      [PC_REMOTE_TEST_REMOTE_STATS]);

    const testCoalescedCodecStats = stats => {

      is([...stats.values()].filter(({type}) => type.endsWith("rtp")).length,

16,

        "Expected: 4 outbound, 4 remote-inbound, 4 inbound, 4 remote-inbound");

      const codecs = [...stats.values()]

          .filter(({type}) => type == "codec")

          .sort((a, b) => a.mimeType > b.mimeType);

      is(codecs.length, 2, "Should have registered two codecs (coalesced)");

      is(new Set(codecs.map(({transportId}) => transportId)).size, 1,

        "Should have registered only one transport with BUNDLE");

      const codecTypes = new Set(codecs.map(({codecType}) => codecType));

      is(codecTypes.size, 1,

        "Should have identical encode and decode configurations (and stats)");

      is(codecTypes[0], undefined,

        "Should have identical encode and decode configurations (and stats)");

      is(codecs[0].mimeType.slice(0, 5), "audio",

        "Should have registered an audio codec");

      is(codecs[1].mimeType.slice(0, 5), "video",

        "Should have registered a video codec");

};

    test.chain.append([

      async function PC_LOCAL_TEST_COALESCED_CODEC_STATS() {

        testCoalescedCodecStats(await test.pcLocal._pc.getStats());

},

      async function PC_REMOTE_TEST_COALESCED_CODEC_STATS() {

        testCoalescedCodecStats(await test.pcRemote._pc.getStats());

},

]);

    return test.run();

});

</script>

</pre>

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