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Test Info:
<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="pc.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
createHTML({
bug: "1363667",
title: "Test audio receiver getSynchronizationSources"
});
var waitForSyncSources = async (test) => {
let receivers = [...test.pcRemote.getReceivers(),
...test.pcLocal.getReceivers()];
is(receivers.length, 2, "Expected number of receivers");
// Wait for sync sources
while (true) {
if (receivers[0].getSynchronizationSources().length &&
receivers[1].getSynchronizationSources().length) {
break;
}
await wait(250);
}
};
var testGetSynchronizationSources = async (test) => {
await waitForSyncSources(test);
let receivers = [...test.pcRemote.getReceivers(),
...test.pcLocal.getReceivers()];
is(receivers.length, 2,
`Expected number of receivers is 2. (${receivers.length})`);
for (let recv of receivers) {
let syncSources = recv.getSynchronizationSources();
ok(syncSources,
"Receiver has Synchronization sources " + JSON.stringify(syncSources));
is(syncSources.length, 1, "Each receiver has only a single sync source");
let source = recv.getSynchronizationSources()[0];
ok(source.audioLevel !== null,
`Synchronization source has audio level. (${source.audioLevel})`);
ok(source.audioLevel >= 0.0,
`Synchronization source audio level >= 0.0 (${source.audioLevel})`);
ok(source.audioLevel <= 1.0,
`Synchronization source audio level <= 1.0 (${source.audioLevel})`);
ok(source.timestamp,
`Synchronization source has timestamp (${source.timestamp})`);
const ageSeconds =
(window.performance.now() + window.performance.timeOrigin -
source.timestamp) / 1000;
ok(ageSeconds >= 0,
`Synchronization source timestamp is in the past`);
ok(ageSeconds < 2.5,
`Synchronization source timestamp is close to now`);
is(source.voiceActivityFlag, undefined,
"Synchronization source unsupported voiceActivity is undefined");
}
};
var testSynchronizationSourceCached = async (test) => {
await waitForSyncSources(test);
let receivers = [...test.pcRemote.getReceivers(),
...test.pcLocal.getReceivers()];
is(receivers.length, 2,
`Expected number of receivers is 2. (${receivers.length})`);
let sourceSets = [[],[]];
for (let sourceSet of sourceSets) {
for (let recv of receivers) {
let sources = recv.getSynchronizationSources();
is(sources.length, 1,
`Expected number of sources is 1. (${sources.length})`);
sourceSet.push(sources);
}
// Busy wait 1s before trying again
let endTime = performance.now() + 1000;
while (performance.now() < endTime) {};
}
is(JSON.stringify(sourceSets[0]), JSON.stringify(sourceSets[1]),
"Subsequent getSynchronizationSources calls are cached.");
};
var test;
runNetworkTest(function(options) {
test = new PeerConnectionTest(options);
test.chain.insertAfter("PC_REMOTE_WAIT_FOR_MEDIA_FLOW",
[testGetSynchronizationSources,
testSynchronizationSourceCached]);
test.setMediaConstraints([{audio: true}], [{audio: true}]);
test.pcLocal.audioElementsOnly = true;
return test.run();
});
</script>
</pre>
</body>
</html>