80 lines
2.8 KiB
HTML
80 lines
2.8 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<script type="application/javascript" src="mediaStreamPlayback.js"></script>
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</head>
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<body>
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<pre id="test">
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<script type="application/javascript">
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"use strict";
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createHTML({
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title: "Test that the audio constraints that observe at the audio constraints we expect.",
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bug: "1509842"
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});
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runTest(async () => {
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// We need a real device to get a MediaEngine supporting constraints
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let audioDevice = SpecialPowers.getCharPref("media.audio_loopback_dev", "");
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if (!audioDevice) {
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todo(false, "No device set by framework. Try --use-test-media-devices");
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return;
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}
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// Get a gUM track with the default settings, check that they are what we
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// expect.
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let stream = await navigator.mediaDevices.getUserMedia({ audio: true });
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let track = stream.getAudioTracks()[0];
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let defaultSettings = track.getSettings();
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is(defaultSettings.echoCancellation, true,
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"Echo cancellation should be ON by default.");
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is(defaultSettings.noiseSuppression, true,
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"Noise suppression should be ON by default.");
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is(defaultSettings.autoGainControl, true,
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"Automatic gain control should be ON by default.");
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track.stop();
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// This is UA-dependant, and belongs in a Mochitest, not in a WPT.
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// When a gUM track has been requested with `echoCancellation` OFF, check that
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// `noiseSuppression` and `autoGainControl` are off as well.
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stream =
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await navigator.mediaDevices.getUserMedia({audio:{echoCancellation: false}});
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track = stream.getAudioTracks()[0];
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defaultSettings = track.getSettings();
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is(defaultSettings.echoCancellation, false,
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"Echo cancellation should be OFF when requested.");
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is(defaultSettings.noiseSuppression, false,
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`Noise suppression should be OFF when echoCancellation is the only
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constraint and is OFF.`);
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is(defaultSettings.autoGainControl, false,
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`Automatic gain control should be OFF when echoCancellation is the only
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constraint and is OFF.`);
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track.stop();
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// When a gUM track has been requested with `echoCancellation` OFF, check that
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// `noiseSuppression` and `autoGainControl` are not OFF as well if another
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// constraint has been specified.
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stream =
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await navigator.mediaDevices.getUserMedia({audio:{echoCancellation: false,
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autoGainControl: true}});
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track = stream.getAudioTracks()[0];
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defaultSettings = track.getSettings();
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is(defaultSettings.echoCancellation, false,
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"Echo cancellation should be OFF when requested.");
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is(defaultSettings.noiseSuppression, false,
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`Noise suppression should be OFF when echoCancellation is OFF and another
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constraint has been specified.`);
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is(defaultSettings.autoGainControl, true,
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"Auto gain control should be ON when requested.");
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track.stop();
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});
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</script>
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</pre>
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</body>
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</html>
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