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// This function takes a sample-rate, and tests that audio flows correctly when
// the sampling-rate at which the MTG runs is not one of the sampling-rates that
// the MediaPipeline can work with.
// It is in a separate file because we have an MTG per document, and we want to
// test multiple sample-rates, so we include it in multiple HTML mochitest
// files.
async function test_peerconnection_audio_forced_sample_rate(forcedSampleRate) {
await scriptsReady;
await pushPrefs(["media.cubeb.force_sample_rate", forcedSampleRate]);
await runNetworkTest(function (options) {
const test = new PeerConnectionTest(options);
const ac = new AudioContext();
test.setMediaConstraints([{ audio: true }], []);
test.chain.replace("PC_LOCAL_GUM", [
function PC_LOCAL_WEBAUDIO_SOURCE(test) {
const oscillator = ac.createOscillator();
oscillator.type = "sine";
oscillator.frequency.value = 700;
oscillator.start();
const dest = ac.createMediaStreamDestination();
oscillator.connect(dest);
test.pcLocal.attachLocalStream(dest.stream);
},
]);
test.chain.append([
function CHECK_REMOTE_AUDIO_FLOW(test) {
return test.pcRemote.checkReceivingToneFrom(ac, test.pcLocal);
},
]);
return test.run();
});
}