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57 lines
1.9 KiB
HTML
57 lines
1.9 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>
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audioparam-setValueAtTime.html
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</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/webaudio/resources/audit-util.js"></script>
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<script src="/webaudio/resources/audit.js"></script>
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<script src="/webaudio/resources/audioparam-testing.js"></script>
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</head>
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<body>
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<script id="layout-test-code">
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let audit = Audit.createTaskRunner();
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// Play a long DC signal out through an AudioGainNode, and call
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// setValueAtTime() at regular intervals to set the value for the duration
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// of the interval. Each time interval has different value so that there
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// is a discontinuity at each time interval boundary. The discontinuity
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// is for testing timing.
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// Number of tests to run.
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let numberOfTests = 100;
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// Max allowed difference between the rendered data and the expected
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// result.
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let maxAllowedError = 6e-8;
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// Set the gain node value to the specified value at the specified time.
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function setValue(value, time) {
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gainNode.gain.setValueAtTime(value, time);
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}
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// For testing setValueAtTime(), we don't need to do anything for
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// automation. because the value at the beginning of the interval is set
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// by setValue and it remains constant for the duration, which is what we
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// want.
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function automation(value, startTime, endTime) {
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// Do nothing.
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}
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audit.define(
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{
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label: 'test',
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description: 'AudioParam setValueAtTime() functionality.'
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},
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function(task, should) {
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createAudioGraphAndTest(
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task, should, numberOfTests, 1, setValue, automation,
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'setValueAtTime()', maxAllowedError, createConstantArray);
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});
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audit.run();
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</script>
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</body>
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</html>
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