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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /dom/media/webaudio/test/test_audioContextParams_sampleRate.html | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/test/test_audioContextParams_sampleRate.html')
| -rw-r--r-- | dom/media/webaudio/test/test_audioContextParams_sampleRate.html | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_audioContextParams_sampleRate.html b/dom/media/webaudio/test/test_audioContextParams_sampleRate.html new file mode 100644 index 0000000000..65cee61243 --- /dev/null +++ b/dom/media/webaudio/test/test_audioContextParams_sampleRate.html @@ -0,0 +1,82 @@ +<!DOCTYPE HTML> +<html> +<head> + <script type="application/javascript" src="mediaStreamPlayback.js"></script> +</head> +<body> +<pre id="test"> + +<script> +/* import-globals-from ../../webrtc/tests/mochitests/mediaStreamPlayback.js */ +createHTML({ + title: "Parallel MTG by setting AudioContextParam sample rate", + bug: "1387454", + visible: true +}); + +runTest(async () => { + // Test an AudioContext of specific sample rate. + // Verify that the oscillator produces a tone. + const rate1 = 500; + const ac1 = new AudioContext({sampleRate: 44100}); + const dest_ac1 = ac1.createMediaStreamDestination(); + const osc_ac1 = ac1.createOscillator(); + osc_ac1.frequency.value = rate1; + osc_ac1.connect(dest_ac1); + osc_ac1.start(0); + + const analyser = new AudioStreamAnalyser(ac1, dest_ac1.stream); + analyser.enableDebugCanvas(); + await analyser.waitForAnalysisSuccess( array => { + const freg_50Hz = array[analyser.binIndexForFrequency(50)]; + const freq_rate1 = array[analyser.binIndexForFrequency(rate1)]; + const freq_4000Hz = array[analyser.binIndexForFrequency(4000)]; + + info("Analysing audio frequency - low:target1:high = " + + freg_50Hz + ':' + freq_rate1 + ':' + freq_4000Hz); + return freg_50Hz < 50 && freq_rate1 > 200 && freq_4000Hz < 50; + }) + osc_ac1.stop(); + + // Same test using a new AudioContext of different sample rate. + const rate2 = 1500; + const ac2 = new AudioContext({sampleRate: 48000}); + const dest_ac2 = ac2.createMediaStreamDestination(); + const osc_ac2 = ac2.createOscillator(); + osc_ac2.frequency.value = rate2; + osc_ac2.connect(dest_ac2); + osc_ac2.start(0); + + const analyser2 = new AudioStreamAnalyser(ac2, dest_ac2.stream); + analyser2.enableDebugCanvas(); + await analyser2.waitForAnalysisSuccess( array => { + const freg_50Hz = array[analyser2.binIndexForFrequency(50)]; + const freq_rate2 = array[analyser2.binIndexForFrequency(rate2)]; + const freq_4000Hz = array[analyser2.binIndexForFrequency(4000)]; + + info("Analysing audio frequency - low:target2:high = " + + freg_50Hz + ':' + freq_rate2 + ':' + freq_4000Hz); + return freg_50Hz < 50 && freq_rate2 > 200 && freq_4000Hz < 50; + }) + osc_ac2.stop(); + + // Two AudioContexts with different sample rate cannot communicate. + mustThrowWith("Connect nodes with different sample rate", "NotSupportedError", + () => ac2.createMediaStreamSource(dest_ac1.stream)); + + // Two AudioContext with the same sample rate can communicate. + const ac3 = new AudioContext({sampleRate: 48000}); + const dest_ac3 = ac3.createMediaStreamDestination(); + ac2.createMediaStreamSource(dest_ac3.stream); + ok(true, "Connect nodes with the same sample rate is ok"); + + mustThrowWith("Invalid zero samplerate", "NotSupportedError", + () => new AudioContext({sampleRate: 0})); + + mustThrowWith("Invalid negative samplerate", "NotSupportedError", + () => new AudioContext({sampleRate: -1})); +}); +</script> +</pre> +</body> +</html> |