diff options
| 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 /testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface | |
| 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 'testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface')
48 files changed, 7530 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/adding-events.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/adding-events.html new file mode 100644 index 0000000000..ab527b6695 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/adding-events.html @@ -0,0 +1,144 @@ +<!doctype html> +<html> + <head> + <title>Adding Events</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audio-param.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // Arbitrary power of two to eliminate round-off in computing time from + // frame. + const sampleRate = 8192; + + audit.define( + { + label: 'linearRamp', + description: 'Insert linearRamp after running for some time' + }, + (task, should) => { + testInsertion(should, { + method: 'linearRampToValueAtTime', + prefix: 'linearRamp' + }).then(() => task.done()); + }); + + audit.define( + { + label: 'expoRamp', + description: 'Insert expoRamp after running for some time' + }, + (task, should) => { + testInsertion(should, { + method: 'exponentialRampToValueAtTime', + prefix: 'expoRamp' + }).then(() => task.done()); + }); + + // Test insertion of an event in the middle of rendering. + // + // options dictionary: + // method - automation method to test + // prefix - string to use for prefixing messages + function testInsertion(should, options) { + let {method, prefix} = options; + + // Channel 0 is the output for the test, and channel 1 is the + // reference output. + let context = new OfflineAudioContext( + {numberOfChannels: 2, length: sampleRate, sampleRate: sampleRate}); + let merger = new ChannelMergerNode( + context, {numberOfChannels: context.destination.channelCount}); + + merger.connect(context.destination); + + // Initial value and final values of the source node + let initialValue = 1; + let finalValue = 2; + + // Set up the node for the automations under test + let src = new ConstantSourceNode(context, {offset: initialValue}); + src.connect(merger, 0, 0); + + // Set initial event to occur at this time. Keep it in the first + // render quantum. + const initialEventTime = 64 / context.sampleRate; + should( + () => src.offset.setValueAtTime(initialValue, initialEventTime), + `${prefix}: setValueAtTime(${initialValue}, ${initialEventTime})`) + .notThrow(); + + // Let time pass and then add a new event with time in the future. + let insertAtFrame = 512; + let insertTime = insertAtFrame / context.sampleRate; + let automationEndFrame = 1024 + 64; + let automationEndTime = automationEndFrame / context.sampleRate; + context.suspend(insertTime) + .then(() => { + should( + () => src.offset[method](finalValue, automationEndTime), + `${prefix}: At time ${insertTime} scheduling ${method}(${ + finalValue}, ${automationEndTime})`) + .notThrow(); + }) + .then(() => context.resume()); + + // Set up graph for the reference result. Automate the source with + // the events scheduled from the beginning. Let the gain node + // simulate the insertion of the event above. This is done by + // setting the gain to 1 at the insertion time. + let srcRef = new ConstantSourceNode(context, {offset: 1}); + let g = new GainNode(context, {gain: 0}); + srcRef.connect(g).connect(merger, 0, 1); + srcRef.offset.setValueAtTime(initialValue, initialEventTime); + srcRef.offset[method](finalValue, automationEndTime); + + // Allow everything through after |insertFrame| frames. + g.gain.setValueAtTime(1, insertTime); + + // Go! + src.start(); + srcRef.start(); + + return context.startRendering().then(audioBuffer => { + let actual = audioBuffer.getChannelData(0); + let expected = audioBuffer.getChannelData(1); + + // Verify that the output is 1 until we reach + // insertAtFrame. Ignore the expected data because that always + // produces 1. + should( + actual.slice(0, insertAtFrame), + `${prefix}: output[0:${insertAtFrame - 1}]`) + .beConstantValueOf(initialValue); + + // Verify ramp is correct by comparing it to the expected + // data. + should( + actual.slice( + insertAtFrame, automationEndFrame - insertAtFrame + 1), + `${prefix}: output[${insertAtFrame}:${ + automationEndFrame - insertAtFrame}]`) + .beCloseToArray( + expected.slice( + insertAtFrame, automationEndFrame - insertAtFrame + 1), + {absoluteThreshold: 0, numberOfArrayElements: 0}); + + // Verify final output has the expected value + should( + actual.slice(automationEndFrame), + `${prefix}: output[${automationEndFrame}:]`) + .beConstantValueOf(finalValue); + }) + } + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-cancel-and-hold.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-cancel-and-hold.html new file mode 100644 index 0000000000..0a8e7a7f2f --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-cancel-and-hold.html @@ -0,0 +1,855 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test CancelValuesAndHoldAtTime + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audio-param.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + <body> + <script id="layout-test-code"> + let sampleRate = 48000; + let renderDuration = 0.5; + + let audit = Audit.createTaskRunner(); + + audit.define( + {label: 'cancelTime', description: 'Test Invalid Values'}, + (task, should) => { + let context = new OfflineAudioContext({ + numberOfChannels: 1, + length: 1, + sampleRate: 8000 + }); + + let src = new ConstantSourceNode(context); + src.connect(context.destination); + + should( + () => src.offset.cancelAndHoldAtTime(-1), + 'cancelAndHoldAtTime(-1)') + .throw(RangeError); + + // These are TypeErrors because |cancelTime| is a + // double, not unrestricted double. + should( + () => src.offset.cancelAndHoldAtTime(NaN), + 'cancelAndHoldAtTime(NaN)') + .throw(TypeError); + + should( + () => src.offset.cancelAndHoldAtTime(Infinity), + 'cancelAndHoldAtTime(Infinity)') + .throw(TypeError); + + task.done(); + }); + + // The first few tasks test the cancellation of each relevant automation + // function. For the test, a simple linear ramp from 0 to 1 is used to + // start things off. Then the automation to be tested is scheduled and + // cancelled. + + audit.define( + {label: 'linear', description: 'Cancel linearRampToValueAtTime'}, + function(task, should) { + cancelTest(should, linearRampTest('linearRampToValueAtTime'), { + valueThreshold: 8.3998e-5, + curveThreshold: 5.9605e-5 + }).then(task.done.bind(task)); + }); + + audit.define( + {label: 'exponential', description: 'Cancel exponentialRampAtTime'}, + function(task, should) { + // Cancel an exponential ramp. The thresholds are experimentally + // determined. + cancelTest(should, function(g, v0, t0, cancelTime) { + // Initialize values to 0. + g[0].gain.setValueAtTime(0, 0); + g[1].gain.setValueAtTime(0, 0); + // Schedule a short linear ramp to start things off. + g[0].gain.linearRampToValueAtTime(v0, t0); + g[1].gain.linearRampToValueAtTime(v0, t0); + + // After the linear ramp, schedule an exponential ramp to the end. + // (This is the event that will be be cancelled.) + let v1 = 0.001; + let t1 = renderDuration; + + g[0].gain.exponentialRampToValueAtTime(v1, t1); + g[1].gain.exponentialRampToValueAtTime(v1, t1); + + expectedConstant = Math.fround( + v0 * Math.pow(v1 / v0, (cancelTime - t0) / (t1 - t0))); + return { + expectedConstant: expectedConstant, + autoMessage: 'exponentialRampToValue(' + v1 + ', ' + t1 + ')', + summary: 'exponentialRampToValueAtTime', + }; + }, { + valueThreshold: 1.8664e-6, + curveThreshold: 5.9605e-8 + }).then(task.done.bind(task)); + }); + + audit.define( + {label: 'setTarget', description: 'Cancel setTargetAtTime'}, + function(task, should) { + // Cancel a setTarget event. + cancelTest(should, function(g, v0, t0, cancelTime) { + // Initialize values to 0. + g[0].gain.setValueAtTime(0, 0); + g[1].gain.setValueAtTime(0, 0); + // Schedule a short linear ramp to start things off. + g[0].gain.linearRampToValueAtTime(v0, t0); + g[1].gain.linearRampToValueAtTime(v0, t0); + + // At the end of the linear ramp, schedule a setTarget. (This is + // the event that will be cancelled.) + let v1 = 0; + let t1 = t0; + let timeConstant = 0.05; + + g[0].gain.setTargetAtTime(v1, t1, timeConstant); + g[1].gain.setTargetAtTime(v1, t1, timeConstant); + + expectedConstant = Math.fround( + v1 + (v0 - v1) * Math.exp(-(cancelTime - t0) / timeConstant)); + return { + expectedConstant: expectedConstant, + autoMessage: 'setTargetAtTime(' + v1 + ', ' + t1 + ', ' + + timeConstant + ')', + summary: 'setTargetAtTime', + }; + }, { + valueThreshold: 4.5267e-7, // 1.1317e-7, + curveThreshold: 0 + }).then(task.done.bind(task)); + }); + + audit.define( + {label: 'setValueCurve', description: 'Cancel setValueCurveAtTime'}, + function(task, should) { + // Cancel a setValueCurve event. + cancelTest(should, function(g, v0, t0, cancelTime) { + // Initialize values to 0. + g[0].gain.setValueAtTime(0, 0); + g[1].gain.setValueAtTime(0, 0); + // Schedule a short linear ramp to start things off. + g[0].gain.linearRampToValueAtTime(v0, t0); + g[1].gain.linearRampToValueAtTime(v0, t0); + + // After the linear ramp, schedule a setValuesCurve. (This is the + // event that will be cancelled.) + let v1 = 0; + let duration = renderDuration - t0; + + // For simplicity, a 2-point curve so we get a linear interpolated + // result. + let curve = Float32Array.from([v0, 0]); + + g[0].gain.setValueCurveAtTime(curve, t0, duration); + g[1].gain.setValueCurveAtTime(curve, t0, duration); + + let index = + Math.floor((curve.length - 1) / duration * (cancelTime - t0)); + + let curvePointsPerFrame = + (curve.length - 1) / duration / sampleRate; + let virtualIndex = + (cancelTime - t0) * sampleRate * curvePointsPerFrame; + + let delta = virtualIndex - index; + expectedConstant = curve[0] + (curve[1] - curve[0]) * delta; + return { + expectedConstant: expectedConstant, + autoMessage: 'setValueCurveAtTime([' + curve + '], ' + t0 + + ', ' + duration + ')', + summary: 'setValueCurveAtTime', + }; + }, { + valueThreshold: 9.5368e-9, + curveThreshold: 0 + }).then(task.done.bind(task)); + }); + + audit.define( + { + label: 'setValueCurve after end', + description: 'Cancel setValueCurveAtTime after the end' + }, + function(task, should) { + cancelTest(should, function(g, v0, t0, cancelTime) { + // Initialize values to 0. + g[0].gain.setValueAtTime(0, 0); + g[1].gain.setValueAtTime(0, 0); + // Schedule a short linear ramp to start things off. + g[0].gain.linearRampToValueAtTime(v0, t0); + g[1].gain.linearRampToValueAtTime(v0, t0); + + // After the linear ramp, schedule a setValuesCurve. (This is the + // event that will be cancelled.) Make sure the curve ends before + // the cancellation time. + let v1 = 0; + let duration = cancelTime - t0 - 0.125; + + // For simplicity, a 2-point curve so we get a linear interpolated + // result. + let curve = Float32Array.from([v0, 0]); + + g[0].gain.setValueCurveAtTime(curve, t0, duration); + g[1].gain.setValueCurveAtTime(curve, t0, duration); + + expectedConstant = curve[1]; + return { + expectedConstant: expectedConstant, + autoMessage: 'setValueCurveAtTime([' + curve + '], ' + t0 + + ', ' + duration + ')', + summary: 'setValueCurveAtTime', + }; + }, { + valueThreshold: 0, + curveThreshold: 0 + }).then(task.done.bind(task)); + }); + + // Special case where we schedule a setTarget and there is no earlier + // automation event. This tests that we pick up the starting point + // correctly from the last setting of the AudioParam value attribute. + + + audit.define( + { + label: 'initial setTarget', + description: 'Cancel with initial setTargetAtTime' + }, + function(task, should) { + cancelTest(should, function(g, v0, t0, cancelTime) { + let v1 = 0; + let timeConstant = 0.1; + g[0].gain.value = 1; + g[0].gain.setTargetAtTime(v1, t0, timeConstant); + g[1].gain.value = 1; + g[1].gain.setTargetAtTime(v1, t0, timeConstant); + + let expectedConstant = Math.fround( + v1 + (v0 - v1) * Math.exp(-(cancelTime - t0) / timeConstant)); + + return { + expectedConstant: expectedConstant, + autoMessage: 'setTargetAtTime(' + v1 + ', ' + t0 + ', ' + + timeConstant + ')', + summary: 'Initial setTargetAtTime', + }; + }, { + valueThreshold: 3.1210e-6, + curveThreshold: 0 + }).then(task.done.bind(task)); + }); + + // Test automations scheduled after the call to cancelAndHoldAtTime. + // Very similar to the above tests, but we also schedule an event after + // cancelAndHoldAtTime and verify that curve after cancellation has + // the correct values. + + audit.define( + { + label: 'post cancel: Linear', + description: 'LinearRamp after cancelling' + }, + function(task, should) { + // Run the cancel test using a linearRamp as the event to be + // cancelled. Then schedule another linear ramp after the + // cancellation. + cancelTest( + should, + linearRampTest('Post cancellation linearRampToValueAtTime'), + {valueThreshold: 8.3998e-5, curveThreshold: 5.9605e-8}, + function(g, cancelTime, expectedConstant) { + // Schedule the linear ramp on g[0], and do the same for g[2], + // using the starting point given by expectedConstant. + let v2 = 2; + let t2 = cancelTime + 0.125; + g[0].gain.linearRampToValueAtTime(v2, t2); + g[2].gain.setValueAtTime(expectedConstant, cancelTime); + g[2].gain.linearRampToValueAtTime(v2, t2); + return { + constantEndTime: cancelTime, + message: 'Post linearRamp(' + v2 + ', ' + t2 + ')' + }; + }) + .then(task.done.bind(task)); + }); + + audit.define( + { + label: 'post cancel: Exponential', + description: 'ExponentialRamp after cancelling' + }, + function(task, should) { + // Run the cancel test using a linearRamp as the event to be + // cancelled. Then schedule an exponential ramp after the + // cancellation. + cancelTest( + should, + linearRampTest('Post cancel exponentialRampToValueAtTime'), + {valueThreshold: 8.3998e-5, curveThreshold: 5.9605e-8}, + function(g, cancelTime, expectedConstant) { + // Schedule the exponential ramp on g[0], and do the same for + // g[2], using the starting point given by expectedConstant. + let v2 = 2; + let t2 = cancelTime + 0.125; + g[0].gain.exponentialRampToValueAtTime(v2, t2); + g[2].gain.setValueAtTime(expectedConstant, cancelTime); + g[2].gain.exponentialRampToValueAtTime(v2, t2); + return { + constantEndTime: cancelTime, + message: 'Post exponentialRamp(' + v2 + ', ' + t2 + ')' + }; + }) + .then(task.done.bind(task)); + }); + + audit.define('post cancel: ValueCurve', function(task, should) { + // Run the cancel test using a linearRamp as the event to be cancelled. + // Then schedule a setValueCurve after the cancellation. + cancelTest( + should, linearRampTest('Post cancel setValueCurveAtTime'), + {valueThreshold: 8.3998e-5, curveThreshold: 5.9605e-8}, + function(g, cancelTime, expectedConstant) { + // Schedule the exponential ramp on g[0], and do the same for + // g[2], using the starting point given by expectedConstant. + let t2 = cancelTime + 0.125; + let duration = 0.125; + let curve = Float32Array.from([.125, 2]); + g[0].gain.setValueCurveAtTime(curve, t2, duration); + g[2].gain.setValueAtTime(expectedConstant, cancelTime); + g[2].gain.setValueCurveAtTime(curve, t2, duration); + return { + constantEndTime: cancelTime, + message: 'Post setValueCurve([' + curve + '], ' + t2 + ', ' + + duration + ')', + errorThreshold: 8.3998e-5 + }; + }) + .then(task.done.bind(task)); + }); + + audit.define('post cancel: setTarget', function(task, should) { + // Run the cancel test using a linearRamp as the event to be cancelled. + // Then schedule a setTarget after the cancellation. + cancelTest( + should, linearRampTest('Post cancel setTargetAtTime'), + {valueThreshold: 8.3998e-5, curveThreshold: 5.9605e-8}, + function(g, cancelTime, expectedConstant) { + // Schedule the exponential ramp on g[0], and do the same for + // g[2], using the starting point given by expectedConstant. + let v2 = 0.125; + let t2 = cancelTime + 0.125; + let timeConstant = 0.1; + g[0].gain.setTargetAtTime(v2, t2, timeConstant); + g[2].gain.setValueAtTime(expectedConstant, cancelTime); + g[2].gain.setTargetAtTime(v2, t2, timeConstant); + return { + constantEndTime: cancelTime + 0.125, + message: 'Post setTargetAtTime(' + v2 + ', ' + t2 + ', ' + + timeConstant + ')', + errorThreshold: 8.4037e-5 + }; + }) + .then(task.done.bind(task)); + }); + + audit.define('post cancel: setValue', function(task, should) { + // Run the cancel test using a linearRamp as the event to be cancelled. + // Then schedule a setTarget after the cancellation. + cancelTest( + should, linearRampTest('Post cancel setValueAtTime'), + {valueThreshold: 8.3998e-5, curveThreshold: 5.9605e-8}, + function(g, cancelTime, expectedConstant) { + // Schedule the exponential ramp on g[0], and do the same for + // g[2], using the starting point given by expectedConstant. + let v2 = 0.125; + let t2 = cancelTime + 0.125; + g[0].gain.setValueAtTime(v2, t2); + g[2].gain.setValueAtTime(expectedConstant, cancelTime); + g[2].gain.setValueAtTime(v2, t2); + return { + constantEndTime: cancelTime + 0.125, + message: 'Post setValueAtTime(' + v2 + ', ' + t2 + ')' + }; + }) + .then(task.done.bind(task)); + }); + + audit.define('cancel future setTarget', (task, should) => { + const context = + new OfflineAudioContext(1, renderDuration * sampleRate, sampleRate); + const src = new ConstantSourceNode(context); + src.connect(context.destination); + + src.offset.setValueAtTime(0.5, 0); + src.offset.setTargetAtTime(0, 0.75 * renderDuration, 0.1); + // Now cancel the effect of the setTarget. + src.offset.cancelAndHoldAtTime(0.5 * renderDuration); + + src.start(); + context.startRendering() + .then(buffer => { + let actual = buffer.getChannelData(0); + // Because the setTarget was cancelled, the output should be a + // constant. + should(actual, 'After cancelling future setTarget event, output') + .beConstantValueOf(0.5); + }) + .then(task.done.bind(task)); + }); + + audit.define('cancel setTarget now', (task, should) => { + const context = + new OfflineAudioContext(1, renderDuration * sampleRate, sampleRate); + const src = new ConstantSourceNode(context); + src.connect(context.destination); + + src.offset.setValueAtTime(0.5, 0); + src.offset.setTargetAtTime(0, 0.5 * renderDuration, 0.1); + // Now cancel the effect of the setTarget. + src.offset.cancelAndHoldAtTime(0.5 * renderDuration); + + src.start(); + context.startRendering() + .then(buffer => { + let actual = buffer.getChannelData(0); + // Because the setTarget was cancelled, the output should be a + // constant. + should( + actual, + 'After cancelling setTarget event starting now, output') + .beConstantValueOf(0.5); + }) + .then(task.done.bind(task)); + }); + + audit.define('cancel future setValueCurve', (task, should) => { + const context = + new OfflineAudioContext(1, renderDuration * sampleRate, sampleRate); + const src = new ConstantSourceNode(context); + src.connect(context.destination); + + src.offset.setValueAtTime(0.5, 0); + src.offset.setValueCurveAtTime([-1, 1], 0.75 * renderDuration, 0.1); + // Now cancel the effect of the setTarget. + src.offset.cancelAndHoldAtTime(0.5 * renderDuration); + + src.start(); + context.startRendering() + .then(buffer => { + let actual = buffer.getChannelData(0); + // Because the setTarget was cancelled, the output should be a + // constant. + should( + actual, 'After cancelling future setValueCurve event, output') + .beConstantValueOf(0.5); + }) + .then(task.done.bind(task)); + }); + + audit.define('cancel setValueCurve now', (task, should) => { + const context = + new OfflineAudioContext(1, renderDuration * sampleRate, sampleRate); + const src = new ConstantSourceNode(context); + src.connect(context.destination); + + src.offset.setValueAtTime(0.5, 0); + src.offset.setValueCurveAtTime([-1, 1], 0.5 * renderDuration, 0.1); + // Now cancel the effect of the setTarget. + src.offset.cancelAndHoldAtTime(0.5 * renderDuration); + + src.start(); + context.startRendering() + .then(buffer => { + let actual = buffer.getChannelData(0); + // Because the setTarget was cancelled, the output should be a + // constant. + should( + actual, + 'After cancelling current setValueCurve event starting now, output') + .beConstantValueOf(0.5); + }) + .then(task.done.bind(task)); + }); + + audit.define( + { + label: 'linear, cancel, linear, cancel, linear', + description: 'Schedules 3 linear ramps, cancelling 2 of them, ' + + 'so that we end up with 2 cancel events next to each other' + }, + (task, should) => { + cancelTest2( + should, + linearRampTest('1st linearRamp'), + {valueThreshold: 0, curveThreshold: 5.9605e-8}, + (g, cancelTime, expectedConstant, cancelTime2) => { + // Ramp from first cancel time to the end will be cancelled at + // second cancel time. + const v1 = expectedConstant; + const t1 = cancelTime; + const v2 = 2; + const t2 = renderDuration; + g[0].gain.linearRampToValueAtTime(v2, t2); + g[2].gain.setValueAtTime(v1, t1); + g[2].gain.linearRampToValueAtTime(v2, t2); + + const expectedConstant2 = + audioParamLinearRamp(cancelTime2, v1, t1, v2, t2); + + return { + constantEndTime: cancelTime, + message: `2nd linearRamp(${v2}, ${t2})`, + expectedConstant2 + }; + }, + (g, cancelTime2, expectedConstant2) => { + // Ramp from second cancel time to the end. + const v3 = 0; + const t3 = renderDuration; + g[0].gain.linearRampToValueAtTime(v3, t3); + g[3].gain.setValueAtTime(expectedConstant2, cancelTime2); + g[3].gain.linearRampToValueAtTime(v3, t3); + return { + constantEndTime2: cancelTime2, + message2: `3rd linearRamp(${v3}, ${t3})`, + }; + }) + .then(() => task.done()); + }); + + audit.run(); + + // Common function for doing a linearRamp test. This just does a linear + // ramp from 0 to v0 at from time 0 to t0. Then another linear ramp is + // scheduled from v0 to 0 from time t0 to t1. This is the ramp that is to + // be cancelled. + function linearRampTest(message) { + return function(g, v0, t0, cancelTime) { + g[0].gain.setValueAtTime(0, 0); + g[1].gain.setValueAtTime(0, 0); + g[0].gain.linearRampToValueAtTime(v0, t0); + g[1].gain.linearRampToValueAtTime(v0, t0); + + let v1 = 0; + let t1 = renderDuration; + g[0].gain.linearRampToValueAtTime(v1, t1); + g[1].gain.linearRampToValueAtTime(v1, t1); + + expectedConstant = + Math.fround(v0 + (v1 - v0) * (cancelTime - t0) / (t1 - t0)); + + return { + expectedConstant: expectedConstant, + autoMessage: + message + ': linearRampToValue(' + v1 + ', ' + t1 + ')', + summary: message, + }; + } + } + + // Run the cancellation test. A set of automations is created and + // canceled. + // + // |testerFunction| is a function that generates the automation to be + // tested. It is given an array of 3 gain nodes, the value and time of an + // initial linear ramp, and the time where the cancellation should occur. + // The function must do the automations for the first two gain nodes. It + // must return a dictionary with |expectedConstant| being the value at the + // cancellation time, |autoMessage| for message to describe the test, and + // |summary| for general summary message to be printed at the end of the + // test. + // + // |thresholdOptions| is a property bag that specifies the error threshold + // to use. |thresholdOptions.valueThreshold| is the error threshold for + // comparing the actual constant output after cancelling to the expected + // value. |thresholdOptions.curveThreshold| is the error threshold for + // comparing the actual and expected automation curves before the + // cancelation point. + // + // For cancellation tests, |postCancelTest| is a function that schedules + // some automation after the cancellation. It takes 3 arguments: an array + // of the gain nodes, the cancellation time, and the expected value at the + // cancellation time. This function must return a dictionary consisting + // of |constantEndtime| indicating when the held constant from + // cancellation stops being constant, |message| giving a summary of what + // automation is being used, and |errorThreshold| that is the error + // threshold between the expected curve and the actual curve. + // + function cancelTest( + should, testerFunction, thresholdOptions, postCancelTest) { + // Create a context with three channels. Channel 0 is the test channel + // containing the actual output that includes the cancellation of + // events. Channel 1 is the expected data upto the cancellation so we + // can verify the cancellation produced the correct result. Channel 2 + // is for verifying events inserted after the cancellation so we can + // verify that automations are correctly generated after the + // cancellation point. + let context = + new OfflineAudioContext(3, renderDuration * sampleRate, sampleRate); + + // Test source is a constant signal + let src = context.createBufferSource(); + src.buffer = createConstantBuffer(context, 1, 1); + src.loop = true; + + // We'll do the automation tests with three gain nodes. One (g0) will + // have cancelAndHoldAtTime and the other (g1) will not. g1 is + // used as the expected result for that automation up to the + // cancellation point. They should be the same. The third node (g2) is + // used for testing automations inserted after the cancellation point, + // if any. g2 is the expected result from the cancellation point to the + // end of the test. + + let g0 = context.createGain(); + let g1 = context.createGain(); + let g2 = context.createGain(); + let v0 = 1; + let t0 = 0.01; + + let cancelTime = renderDuration / 2; + + // Test automation here. The tester function is responsible for setting + // up the gain nodes with the desired automation for testing. + autoResult = testerFunction([g0, g1, g2], v0, t0, cancelTime); + let expectedConstant = autoResult.expectedConstant; + let autoMessage = autoResult.autoMessage; + let summaryMessage = autoResult.summary; + + // Cancel scheduled events somewhere in the middle of the test + // automation. + g0.gain.cancelAndHoldAtTime(cancelTime); + + let constantEndTime; + if (postCancelTest) { + postResult = + postCancelTest([g0, g1, g2], cancelTime, expectedConstant); + constantEndTime = postResult.constantEndTime; + } + + // Connect everything together (with a merger to make a two-channel + // result). Channel 0 is the test (with cancelAndHoldAtTime) and + // channel 1 is the reference (without cancelAndHoldAtTime). + // Channel 1 is used to verify that everything up to the cancellation + // has the correct values. + src.connect(g0); + src.connect(g1); + src.connect(g2); + let merger = context.createChannelMerger(3); + g0.connect(merger, 0, 0); + g1.connect(merger, 0, 1); + g2.connect(merger, 0, 2); + merger.connect(context.destination); + + // Go! + src.start(); + + return context.startRendering().then(function(buffer) { + let actual = buffer.getChannelData(0); + let expected = buffer.getChannelData(1); + + // The actual output should be a constant from the cancel time to the + // end. We use the last value of the actual output as the constant, + // but we also want to compare that with what we thought it should + // really be. + + let cancelFrame = Math.ceil(cancelTime * sampleRate); + + // Verify that the curves up to the cancel time are "identical". The + // should be but round-off may make them differ slightly due to the + // way cancelling is done. + let endFrame = Math.floor(cancelTime * sampleRate); + should( + actual.slice(0, endFrame), + autoMessage + ' up to time ' + cancelTime) + .beCloseToArray( + expected.slice(0, endFrame), + {absoluteThreshold: thresholdOptions.curveThreshold}); + + // Verify the output after the cancellation is a constant. + let actualTail; + let constantEndFrame; + + if (postCancelTest) { + constantEndFrame = Math.ceil(constantEndTime * sampleRate); + actualTail = actual.slice(cancelFrame, constantEndFrame); + } else { + actualTail = actual.slice(cancelFrame); + } + + let actualConstant = actual[cancelFrame]; + + should( + actualTail, + 'Cancelling ' + autoMessage + ' at time ' + cancelTime) + .beConstantValueOf(actualConstant); + + // Verify that the constant is the value we expect. + should( + actualConstant, + 'Expected value for cancelling ' + autoMessage + ' at time ' + + cancelTime) + .beCloseTo( + expectedConstant, + {threshold: thresholdOptions.valueThreshold}); + + // Verify the curve after the constantEndTime matches our + // expectations. + if (postCancelTest) { + let c2 = buffer.getChannelData(2); + should(actual.slice(constantEndFrame), postResult.message) + .beCloseToArray( + c2.slice(constantEndFrame), + {absoluteThreshold: postResult.errorThreshold || 0}); + } + }); + } + + // Similar to cancelTest, but does 2 cancels. + function cancelTest2( + should, testerFunction, thresholdOptions, + postCancelTest, postCancelTest2) { + // Channel 0: Actual output that includes the cancellation of events. + // Channel 1: Expected data up to the first cancellation. + // Channel 2: Expected data from 1st cancellation to 2nd cancellation. + // Channel 3: Expected data from 2nd cancellation to the end. + const context = + new OfflineAudioContext(4, renderDuration * sampleRate, sampleRate); + + const src = context.createConstantSource(); + + // g0: Actual gain which will have cancelAndHoldAtTime called on it + // twice. + // g1: Expected gain from start to the 1st cancel. + // g2: Expected gain from 1st cancel to the 2nd cancel. + // g3: Expected gain from the 2nd cancel to the end. + const g0 = context.createGain(); + const g1 = context.createGain(); + const g2 = context.createGain(); + const g3 = context.createGain(); + const v0 = 1; + const t0 = 0.01; + + const cancelTime1 = renderDuration * 0.5; + const cancelTime2 = renderDuration * 0.75; + + // Run testerFunction to generate the 1st ramp. + const { + expectedConstant, autoMessage, summaryMessage} = + testerFunction([g0, g1, g2], v0, t0, cancelTime1); + + // 1st cancel, cancelling the 1st ramp. + g0.gain.cancelAndHoldAtTime(cancelTime1); + + // Run postCancelTest to generate the 2nd ramp. + const { + constantEndTime, message, errorThreshold = 0, expectedConstant2} = + postCancelTest( + [g0, g1, g2], cancelTime1, expectedConstant, cancelTime2); + + // 2nd cancel, cancelling the 2nd ramp. + g0.gain.cancelAndHoldAtTime(cancelTime2); + + // Run postCancelTest2 to generate the 3rd ramp. + const {constantEndTime2, message2} = + postCancelTest2([g0, g1, g2, g3], cancelTime2, expectedConstant2); + + // Connect everything together + src.connect(g0); + src.connect(g1); + src.connect(g2); + src.connect(g3); + const merger = context.createChannelMerger(4); + g0.connect(merger, 0, 0); + g1.connect(merger, 0, 1); + g2.connect(merger, 0, 2); + g3.connect(merger, 0, 3); + merger.connect(context.destination); + + // Go! + src.start(); + + return context.startRendering().then(function (buffer) { + const actual = buffer.getChannelData(0); + const expected1 = buffer.getChannelData(1); + const expected2 = buffer.getChannelData(2); + const expected3 = buffer.getChannelData(3); + + const cancelFrame1 = Math.ceil(cancelTime1 * sampleRate); + const cancelFrame2 = Math.ceil(cancelTime2 * sampleRate); + + const constantEndFrame1 = Math.ceil(constantEndTime * sampleRate); + const constantEndFrame2 = Math.ceil(constantEndTime2 * sampleRate); + + const actualTail1 = actual.slice(cancelFrame1, constantEndFrame1); + const actualTail2 = actual.slice(cancelFrame2, constantEndFrame2); + + const actualConstant1 = actual[cancelFrame1]; + const actualConstant2 = actual[cancelFrame2]; + + // Verify first section curve + should( + actual.slice(0, cancelFrame1), + autoMessage + ' up to time ' + cancelTime1) + .beCloseToArray( + expected1.slice(0, cancelFrame1), + {absoluteThreshold: thresholdOptions.curveThreshold}); + + // Verify that a value was held after 1st cancel + should( + actualTail1, + 'Cancelling ' + autoMessage + ' at time ' + cancelTime1) + .beConstantValueOf(actualConstant1); + + // Verify that held value after 1st cancel was correct + should( + actualConstant1, + 'Expected value for cancelling ' + autoMessage + ' at time ' + + cancelTime1) + .beCloseTo( + expectedConstant, + {threshold: thresholdOptions.valueThreshold}); + + // Verify middle section curve + should(actual.slice(constantEndFrame1, cancelFrame2), message) + .beCloseToArray( + expected2.slice(constantEndFrame1, cancelFrame2), + {absoluteThreshold: errorThreshold}); + + // Verify that a value was held after 2nd cancel + should( + actualTail2, + 'Cancelling ' + message + ' at time ' + cancelTime2) + .beConstantValueOf(actualConstant2); + + // Verify that held value after 2nd cancel was correct + should( + actualConstant2, + 'Expected value for cancelling ' + message + ' at time ' + + cancelTime2) + .beCloseTo( + expectedConstant2, + {threshold: thresholdOptions.valueThreshold}); + + // Verify end section curve + should(actual.slice(constantEndFrame2), message2) + .beCloseToArray( + expected3.slice(constantEndFrame2), + {absoluteThreshold: errorThreshold || 0}); + }); + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-close.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-close.html new file mode 100644 index 0000000000..b5555b0137 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-close.html @@ -0,0 +1,161 @@ +<!doctype html> +<html> + <head> + <title>Test AudioParam events very close in time</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + + <body> + <script> + const audit = Audit.createTaskRunner(); + + // Largest sample rate that is required to be supported and is a power of + // two, to eliminate round-off as much as possible. + const sampleRate = 65536; + + // Only need one render quantum for testing. + const testFrames = 128; + + // Largest representable single-float number + const floatMax = Math.fround(3.4028234663852886e38); + + // epspos is the smallest x such that 1 + x != 1 + const epspos = 1.1102230246251568e-16; + // epsneg is the smallest x such that 1 - x != 1 + const epsneg = 5.551115123125784e-17; + + audit.define( + {label: 'no-nan', description: 'NaN does not occur'}, + (task, should) => { + const context = new OfflineAudioContext({ + numberOfChannels: 1, + sampleRate: sampleRate, + length: testFrames + }); + + const src0 = new ConstantSourceNode(context, {offset: 0}); + + // This should always succeed. We just want to print out a message + // that |src0| is a constant source node for the following + // processing. + should(src0, 'src0 = new ConstantSourceNode(context, {offset: 0})') + .beEqualTo(src0); + + src0.connect(context.destination); + + // Values for the first event (setValue). |time1| MUST be 0. + const time1 = 0; + const value1 = 10; + + // Values for the second event (linearRamp). |value2| must be huge, + // and |time2| must be small enough that 1/|time2| overflows a + // single float. This value is the least positive single float. + const value2 = floatMax; + const time2 = 1.401298464324817e-45; + + // These should always succeed; the messages are just informational + // to show the events that we scheduled. + should( + src0.offset.setValueAtTime(value1, time1), + `src0.offset.setValueAtTime(${value1}, ${time1})`) + .beEqualTo(src0.offset); + should( + src0.offset.linearRampToValueAtTime(value2, time2), + `src0.offset.linearRampToValueAtTime(${value2}, ${time2})`) + .beEqualTo(src0.offset); + + src0.start(); + + context.startRendering() + .then(buffer => { + const output = buffer.getChannelData(0); + + // Since time1 = 0, the output at frame 0 MUST be value1. + should(output[0], 'output[0]').beEqualTo(value1); + + // Since time2 < 1, output from frame 1 and later must be a + // constant. + should(output.slice(1), 'output[1]') + .beConstantValueOf(value2); + }) + .then(() => task.done()); + }); + + audit.define( + {label: 'interpolation', description: 'Interpolation of linear ramp'}, + (task, should) => { + const context = new OfflineAudioContext({ + numberOfChannels: 1, + sampleRate: sampleRate, + length: testFrames + }); + + const src1 = new ConstantSourceNode(context, {offset: 0}); + + // This should always succeed. We just want to print out a message + // that |src1| is a constant source node for the following + // processing. + should(src1, 'src1 = new ConstantSourceNode(context, {offset: 0})') + .beEqualTo(src1); + + src1.connect(context.destination); + + const frame = 1; + + // These time values are arranged so that time1 < frame/sampleRate < + // time2. This means we need to interpolate to get a value at given + // frame. + // + // The values are not so important, but |value2| should be huge. + const time1 = frame * (1 - epsneg) / context.sampleRate; + const value1 = 1e15; + + const time2 = frame * (1 + epspos) / context.sampleRate; + const value2 = floatMax; + + should( + src1.offset.setValueAtTime(value1, time1), + `src1.offset.setValueAtTime(${value1}, ${time1})`) + .beEqualTo(src1.offset); + should( + src1.offset.linearRampToValueAtTime(value2, time2), + `src1.offset.linearRampToValueAtTime(${value2}, ${time2})`) + .beEqualTo(src1.offset); + + src1.start(); + + context.startRendering() + .then(buffer => { + const output = buffer.getChannelData(0); + + // Sanity check + should(time2 - time1, 'Event time difference') + .notBeEqualTo(0); + + // Because 0 < time1 < 1, output must be 0 at time 0. + should(output[0], 'output[0]').beEqualTo(0); + + // Because time1 < 1/sampleRate < time2, we need to + // interpolate the value between these times to determine the + // output at frame 1. + const t = frame / context.sampleRate; + const v = value1 + + (value2 - value1) * (t - time1) / (time2 - time1); + + should(output[1], 'output[1]').beCloseTo(v, {threshold: 0}); + + // Because 1 < time2 < 2, the output at frame 2 and higher is + // constant. + should(output.slice(2), 'output[2:]') + .beConstantValueOf(value2); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-connect-audioratesignal.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-connect-audioratesignal.html new file mode 100644 index 0000000000..b0455f86bc --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-connect-audioratesignal.html @@ -0,0 +1,103 @@ +<!DOCTYPE html> +<!-- +Tests that an audio-rate signal (AudioNode output) can be connected to an +AudioParam. Specifically, this tests that an audio-rate signal coming from an +AudioBufferSourceNode playing an AudioBuffer containing a specific curve can be +connected to an AudioGainNode's .gain attribute (an AudioParam). Another +AudioBufferSourceNode will be the audio source having its gain changed. We load +this one with an AudioBuffer containing a constant value of 1. Thus it's easy +to check that the resultant signal should be equal to the gain-scaling curve. +--> +<html> + <head> + <title> + audioparam-connect-audioratesignal.html + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + let sampleRate = 44100.0; + let lengthInSeconds = 1; + + let context = 0; + let constantOneBuffer = 0; + let linearRampBuffer = 0; + + function checkResult(renderedBuffer, should) { + let renderedData = renderedBuffer.getChannelData(0); + let expectedData = linearRampBuffer.getChannelData(0); + let n = renderedBuffer.length; + + should(n, 'Rendered signal length').beEqualTo(linearRampBuffer.length); + + // Check that the rendered result exactly matches the buffer used to + // control gain. This is because we're changing the gain of a signal + // having constant value 1. + let success = true; + for (let i = 0; i < n; ++i) { + if (renderedData[i] != expectedData[i]) { + success = false; + break; + } + } + + should( + success, + 'Rendered signal exactly matches the audio-rate gain changing signal') + .beTrue(); + } + + audit.define('test', function(task, should) { + let sampleFrameLength = sampleRate * lengthInSeconds; + + // Create offline audio context. + context = new OfflineAudioContext(1, sampleFrameLength, sampleRate); + + // Create buffer used by the source which will have its gain controlled. + constantOneBuffer = createConstantBuffer(context, sampleFrameLength, 1); + + // Create buffer used to control gain. + linearRampBuffer = createLinearRampBuffer(context, sampleFrameLength); + + // Create the two sources. + + let constantSource = context.createBufferSource(); + constantSource.buffer = constantOneBuffer; + + let gainChangingSource = context.createBufferSource(); + gainChangingSource.buffer = linearRampBuffer; + + // Create a gain node controlling the gain of constantSource and make + // the connections. + let gainNode = context.createGain(); + + // Intrinsic baseline gain of zero. + gainNode.gain.value = 0; + + constantSource.connect(gainNode); + gainNode.connect(context.destination); + + // Connect an audio-rate signal to control the .gain AudioParam. + // This is the heart of what is being tested. + gainChangingSource.connect(gainNode.gain); + + // Start both sources at time 0. + constantSource.start(0); + gainChangingSource.start(0); + + context.startRendering().then(buffer => { + checkResult(buffer, should); + task.done(); + }); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-default-value.window.js b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-default-value.window.js new file mode 100644 index 0000000000..ae55f217f4 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-default-value.window.js @@ -0,0 +1,9 @@ +'use strict'; + +test(() => { + const context = new OfflineAudioContext(1, 1, 44100); + const defaultValue = -1; + const gainNode = new GainNode(context, { gain: defaultValue }); + + assert_equals(gainNode.gain.defaultValue, defaultValue, "AudioParam's defaultValue is not correct."); +}, "AudioParam's defaultValue"); diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-exceptional-values.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-exceptional-values.html new file mode 100644 index 0000000000..982731d338 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-exceptional-values.html @@ -0,0 +1,240 @@ +<!DOCTYPE html> +<html> + <head> + <title> + audioparam-exceptional-values.html + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + // Context to use for all of the tests. The context isn't used for any + // processing; just need one for creating a gain node, which is used for + // all the tests. + let context; + + // For these values, AudioParam methods should throw a Typeerror because + // they are not finite values. + let nonFiniteValues = [Infinity, -Infinity, NaN]; + + audit.define('initialize', (task, should) => { + should(() => { + // Context for testing. Rendering isn't done, so any valid values can + // be used here so might as well make them small. + context = new OfflineAudioContext(1, 1, 8000); + }, 'Creating context for testing').notThrow(); + + task.done(); + }); + + audit.define( + { + label: 'test value', + description: 'Test non-finite arguments for AudioParam value' + }, + (task, should) => { + let gain = context.createGain(); + + // Default method for generating the arguments for an automation + // method for testing the value of the automation. + let defaultFuncArg = (value) => [value, 1]; + + // Test the value parameter + doTests(should, gain, TypeError, nonFiniteValues, [ + {automationName: 'setValueAtTime', funcArg: defaultFuncArg}, { + automationName: 'linearRampToValueAtTime', + funcArg: defaultFuncArg + }, + { + automationName: 'exponentialRampToValueAtTime', + funcArg: defaultFuncArg + }, + { + automationName: 'setTargetAtTime', + funcArg: (value) => [value, 1, 1] + } + ]); + task.done(); + }); + + audit.define( + { + label: 'test time', + description: 'Test non-finite arguments for AudioParam time' + }, + (task, should) => { + let gain = context.createGain(); + + // Default method for generating the arguments for an automation + // method for testing the time parameter of the automation. + let defaultFuncArg = (startTime) => [1, startTime]; + + // Test the time parameter + doTests(should, gain, TypeError, nonFiniteValues, [ + {automationName: 'setValueAtTime', funcArg: defaultFuncArg}, + { + automationName: 'linearRampToValueAtTime', + funcArg: defaultFuncArg + }, + { + automationName: 'exponentialRampToValueAtTime', + funcArg: defaultFuncArg + }, + // Test start time for setTarget + { + automationName: 'setTargetAtTime', + funcArg: (startTime) => [1, startTime, 1] + }, + // Test time constant for setTarget + { + automationName: 'setTargetAtTime', + funcArg: (timeConstant) => [1, 1, timeConstant] + }, + ]); + + task.done(); + }); + + audit.define( + { + label: 'test setValueCurve', + description: 'Test non-finite arguments for setValueCurveAtTime' + }, + (task, should) => { + let gain = context.createGain(); + + // Just an array for use by setValueCurveAtTime. The length and + // contents of the array are not important. + let curve = new Float32Array(3); + + doTests(should, gain, TypeError, nonFiniteValues, [ + { + automationName: 'setValueCurveAtTime', + funcArg: (startTime) => [curve, startTime, 1] + }, + ]); + + // Non-finite values for the curve should signal an error + doTests( + should, gain, TypeError, + [[1, 2, Infinity, 3], [1, NaN, 2, 3]], [{ + automationName: 'setValueCurveAtTime', + funcArg: (c) => [c, 1, 1] + }]); + + task.done(); + }); + + audit.define( + { + label: 'special cases 1', + description: 'Test exceptions for finite values' + }, + (task, should) => { + let gain = context.createGain(); + + // Default method for generating the arguments for an automation + // method for testing the time parameter of the automation. + let defaultFuncArg = (startTime) => [1, startTime]; + + // Test the time parameter + let curve = new Float32Array(3); + doTests(should, gain, RangeError, [-1], [ + {automationName: 'setValueAtTime', funcArg: defaultFuncArg}, + { + automationName: 'linearRampToValueAtTime', + funcArg: defaultFuncArg + }, + { + automationName: 'exponentialRampToValueAtTime', + funcArg: defaultFuncArg + }, + { + automationName: 'setTargetAtTime', + funcArg: (startTime) => [1, startTime, 1] + }, + // Test time constant + { + automationName: 'setTargetAtTime', + funcArg: (timeConstant) => [1, 1, timeConstant] + }, + // startTime and duration for setValueCurve + { + automationName: 'setValueCurveAtTime', + funcArg: (startTime) => [curve, startTime, 1] + }, + { + automationName: 'setValueCurveAtTime', + funcArg: (duration) => [curve, 1, duration] + }, + ]); + + // Two final tests for setValueCurve: duration must be strictly + // positive. + should( + () => gain.gain.setValueCurveAtTime(curve, 1, 0), + 'gain.gain.setValueCurveAtTime(curve, 1, 0)') + .throw(RangeError); + should( + () => gain.gain.setValueCurveAtTime(curve, 1, -1), + 'gain.gain.setValueCurveAtTime(curve, 1, -1)') + .throw(RangeError); + + task.done(); + }); + + audit.define( + { + label: 'special cases 2', + description: 'Test special cases for expeonentialRamp' + }, + (task, should) => { + let gain = context.createGain(); + + doTests(should, gain, RangeError, [0, -1e-100, 1e-100], [{ + automationName: 'exponentialRampToValueAtTime', + funcArg: (value) => [value, 1] + }]); + + task.done(); + }); + + audit.run(); + + // Run test over the set of values in |testValues| for all of the + // automation methods in |testMethods|. The expected error type is + // |errorName|. |testMethods| is an array of dictionaries with attributes + // |automationName| giving the name of the automation method to be tested + // and |funcArg| being a function of one parameter that produces an array + // that will be used as the argument to the automation method. + function doTests(should, node, errorName, testValues, testMethods) { + testValues.forEach(value => { + testMethods.forEach(method => { + let args = method.funcArg(value); + let message = 'gain.gain.' + method.automationName + '(' + + argString(args) + ')'; + should(() => node.gain[method.automationName](...args), message) + .throw(errorName); + }); + }); + } + + // Specialized printer for automation arguments so that messages make + // sense. We assume the first element is either a number or an array. If + // it's an array, there are always three elements, and we want to print + // out the brackets for the array argument. + function argString(arg) { + if (typeof(arg[0]) === 'number') { + return arg.toString(); + } + + return '[' + arg[0] + '],' + arg[1] + ',' + arg[2]; + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-exponentialRampToValueAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-exponentialRampToValueAtTime.html new file mode 100644 index 0000000000..bec4c1286b --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-exponentialRampToValueAtTime.html @@ -0,0 +1,63 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test AudioParam.exponentialRampToValueAtTime + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audioparam-testing.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + // Play a long DC signal out through an AudioGainNode, and call + // setValueAtTime() and exponentialRampToValueAtTime() at regular + // intervals to set the starting and ending values for an exponential + // ramp. Each time interval has a ramp with a different starting and + // ending value so that there is a discontinuity at each time interval + // boundary. The discontinuity is for testing timing. Also, we alternate + // between an increasing and decreasing ramp for each interval. + + // Number of tests to run. + let numberOfTests = 100; + + // Max allowed difference between the rendered data and the expected + // result. + let maxAllowedError = 1.222e-5; + + // The AudioGainNode starts with this value instead of the default value. + let initialValue = 100; + + // Set the gain node value to the specified value at the specified time. + function setValue(value, time) { + gainNode.gain.setValueAtTime(value, time); + } + + // Generate an exponential ramp ending at time |endTime| with an ending + // value of |value|. + function generateRamp(value, startTime, endTime){ + // |startTime| is ignored because the exponential ramp + // uses the value from the setValueAtTime() call above. + gainNode.gain.exponentialRampToValueAtTime(value, endTime)} + + audit.define( + { + label: 'test', + description: + 'AudioParam exponentialRampToValueAtTime() functionality' + }, + function(task, should) { + createAudioGraphAndTest( + task, should, numberOfTests, initialValue, setValue, + generateRamp, 'exponentialRampToValueAtTime()', maxAllowedError, + createExponentialRampArray); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-large-endtime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-large-endtime.html new file mode 100644 index 0000000000..d8f38eeba0 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-large-endtime.html @@ -0,0 +1,73 @@ +<!DOCTYPE html> +<html> + <head> + <title> + AudioParam with Huge End Time + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + <body> + <script id="layout-test-code"> + let sampleRate = 48000; + // Render for some small (but fairly arbitrary) time. + let renderDuration = 0.125; + // Any huge time value that won't fit in a size_t (2^64 on a 64-bit + // machine). + let largeTime = 1e300; + + let audit = Audit.createTaskRunner(); + + // See crbug.com/582701. Create an audioparam with a huge end time and + // verify that to automation is run. We don't care about the actual + // results, just that it runs. + + // Test linear ramp with huge end time + audit.define('linearRamp', (task, should) => { + let graph = createGraph(); + graph.gain.gain.linearRampToValueAtTime(0.1, largeTime); + + graph.source.start(); + graph.context.startRendering() + .then(function(buffer) { + should(true, 'linearRampToValue(0.1, ' + largeTime + ')') + .message('successfully rendered', 'unsuccessfully rendered'); + }) + .then(() => task.done()); + }); + + // Test exponential ramp with huge end time + audit.define('exponentialRamp', (task, should) => { + let graph = createGraph(); + graph.gain.gain.exponentialRampToValueAtTime(.1, largeTime); + + graph.source.start(); + graph.context.startRendering() + .then(function(buffer) { + should(true, 'exponentialRampToValue(0.1, ' + largeTime + ')') + .message('successfully rendered', 'unsuccessfully rendered'); + }) + .then(() => task.done()); + }); + + audit.run(); + + // Create the graph and return the context, the source, and the gain node. + function createGraph() { + let context = + new OfflineAudioContext(1, renderDuration * sampleRate, sampleRate); + let src = context.createBufferSource(); + src.buffer = createConstantBuffer(context, 1, 1); + src.loop = true; + let gain = context.createGain(); + src.connect(gain); + gain.connect(context.destination); + gain.gain.setValueAtTime(1, 0.1 / sampleRate); + + return {context: context, gain: gain, source: src}; + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-linearRampToValueAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-linearRampToValueAtTime.html new file mode 100644 index 0000000000..509c254d92 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-linearRampToValueAtTime.html @@ -0,0 +1,60 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test AudioParam.linearRampToValueAtTime + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audioparam-testing.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + // Play a long DC signal out through an AudioGainNode, and call + // setValueAtTime() and linearRampToValueAtTime() at regular intervals to + // set the starting and ending values for a linear ramp. Each time + // interval has a ramp with a different starting and ending value so that + // there is a discontinuity at each time interval boundary. The + // discontinuity is for testing timing. Also, we alternate between an + // increasing and decreasing ramp for each interval. + + // Number of tests to run. + let numberOfTests = 100; + + // Max allowed difference between the rendered data and the expected + // result. + let maxAllowedError = 1.865e-6; + + // Set the gain node value to the specified value at the specified time. + function setValue(value, time) { + gainNode.gain.setValueAtTime(value, time); + } + + // Generate a linear ramp ending at time |endTime| with an ending value of + // |value|. + function generateRamp(value, startTime, endTime){ + // |startTime| is ignored because the linear ramp uses the value from + // the + // setValueAtTime() call above. + gainNode.gain.linearRampToValueAtTime(value, endTime)} + + audit.define( + { + label: 'test', + description: 'AudioParam linearRampToValueAtTime() functionality' + }, + function(task, should) { + createAudioGraphAndTest( + task, should, numberOfTests, 1, setValue, generateRamp, + 'linearRampToValueAtTime()', maxAllowedError, + createLinearRampArray); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-method-chaining.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-method-chaining.html new file mode 100644 index 0000000000..ffe46035fd --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-method-chaining.html @@ -0,0 +1,143 @@ +<!DOCTYPE html> +<html> + <head> + <title> + audioparam-method-chaining.html + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audioparam-testing.js"></script> + </head> + <body> + <script id="layout-test-code"> + let sampleRate = 8000; + + // Create a dummy array for setValueCurveAtTime method. + let curveArray = new Float32Array([5.0, 6.0]); + + // AudioNode dictionary with associated dummy arguments. + let methodDictionary = [ + {name: 'setValueAtTime', args: [1.0, 0.0]}, + {name: 'linearRampToValueAtTime', args: [2.0, 1.0]}, + {name: 'exponentialRampToValueAtTime', args: [3.0, 2.0]}, + {name: 'setTargetAtTime', args: [4.0, 2.0, 0.5]}, + {name: 'setValueCurveAtTime', args: [curveArray, 5.0, 1.0]}, + {name: 'cancelScheduledValues', args: [6.0]} + ]; + + let audit = Audit.createTaskRunner(); + + // Task: testing entries from the dictionary. + audit.define('from-dictionary', (task, should) => { + let context = new AudioContext(); + + methodDictionary.forEach(function(method) { + let sourceParam = context.createGain().gain; + should( + sourceParam === sourceParam[method.name](...method.args), + 'The return value of ' + sourceParam.constructor.name + '.' + + method.name + '()' + + ' matches the source AudioParam') + .beEqualTo(true); + + }); + + task.done(); + }); + + // Task: test method chaining with invalid operation. + audit.define('invalid-operation', (task, should) => { + let context = new OfflineAudioContext(1, sampleRate, sampleRate); + let osc = context.createOscillator(); + let amp1 = context.createGain(); + let amp2 = context.createGain(); + + osc.connect(amp1); + osc.connect(amp2); + amp1.connect(context.destination); + amp2.connect(context.destination); + + // The first operation fails with an exception, thus the second one + // should not have effect on the parameter value. Instead, it should + // maintain the default value of 1.0. + should( + function() { + amp1.gain.setValueAtTime(0.25, -1.0) + .linearRampToValueAtTime(2.0, 1.0); + }, + 'Calling setValueAtTime() with a negative end time') + .throw(RangeError); + + // The first operation succeeds but the second fails due to zero target + // value for the exponential ramp. Thus only the first should have + // effect on the parameter value, setting the value to 0.5. + should( + function() { + amp2.gain.setValueAtTime(0.5, 0.0).exponentialRampToValueAtTime( + 0.0, 1.0); + }, + 'Calling exponentialRampToValueAtTime() with a zero target value') + .throw(RangeError); + + osc.start(); + osc.stop(1.0); + + context.startRendering() + .then(function(buffer) { + should(amp1.gain.value, 'The gain value of the first gain node') + .beEqualTo(1.0); + should(amp2.gain.value, 'The gain value of the second gain node') + .beEqualTo(0.5); + }) + .then(() => task.done()); + }); + + // Task: verify if the method chaining actually works. Create an arbitrary + // envelope and compare the result with the expected one created by JS + // code. + audit.define('verification', (task, should) => { + let context = new OfflineAudioContext(1, sampleRate * 4, sampleRate); + let constantBuffer = createConstantBuffer(context, 1, 1.0); + + let source = context.createBufferSource(); + source.buffer = constantBuffer; + source.loop = true; + + let envelope = context.createGain(); + + source.connect(envelope); + envelope.connect(context.destination); + + envelope.gain.setValueAtTime(0.0, 0.0) + .linearRampToValueAtTime(1.0, 1.0) + .exponentialRampToValueAtTime(0.5, 2.0) + .setTargetAtTime(0.001, 2.0, 0.5); + + source.start(); + + context.startRendering() + .then(function(buffer) { + let expectedEnvelope = + createLinearRampArray(0.0, 1.0, 0.0, 1.0, sampleRate); + expectedEnvelope.push(...createExponentialRampArray( + 1.0, 2.0, 1.0, 0.5, sampleRate)); + expectedEnvelope.push(...createExponentialApproachArray( + 2.0, 4.0, 0.5, 0.001, sampleRate, 0.5)); + + // There are slight differences between JS implementation of + // AudioParam envelope and the internal implementation. (i.e. + // double/float and rounding up) The error threshold is adjusted + // empirically through the local testing. + should(buffer.getChannelData(0), 'The rendered envelope') + .beCloseToArray( + expectedEnvelope, {absoluteThreshold: 4.0532e-6}); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-nominal-range.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-nominal-range.html new file mode 100644 index 0000000000..517fc6e956 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-nominal-range.html @@ -0,0 +1,497 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test AudioParam Nominal Range Values + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + <body> + <script id="layout-test-code"> + // Some arbitrary sample rate for the offline context. + let sampleRate = 48000; + + // The actual contexts to use. Generally use the offline context for + // testing except for the media nodes which require an AudioContext. + let offlineContext; + let audioContext; + + // The set of all methods that we've tested for verifying that we tested + // all of the necessary objects. + let testedMethods = new Set(); + + // The most positive single float value (the value just before infinity). + // Be careful when changing this value! Javascript only uses double + // floats, so the value here should be the max single-float value, + // converted directly to a double-float value. This also depends on + // Javascript reading this value and producing the desired double-float + // value correctly. + let mostPositiveFloat = 3.4028234663852886e38; + + let audit = Audit.createTaskRunner(); + + // Array describing the tests that should be run. |testOfflineConfigs| is + // for tests that can use an offline context. |testOnlineConfigs| is for + // tests that need to use an online context. Offline contexts are + // preferred when possible. + let testOfflineConfigs = [ + { + // The name of the method to create the particular node to be tested. + creator: 'createGain', + + // Any args to pass to the creator function. + args: [], + + // The min/max limits for each AudioParam of the node. This is a + // dictionary whose keys are + // the names of each AudioParam in the node. Don't define this if the + // node doesn't have any + // AudioParam attributes. + limits: { + gain: { + // The expected min and max values for this AudioParam. + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat + } + } + }, + { + creator: 'createDelay', + // Just specify a non-default value for the maximum delay so we can + // make sure the limits are + // set correctly. + args: [1.5], + limits: {delayTime: {minValue: 0, maxValue: 1.5}} + }, + { + creator: 'createBufferSource', + args: [], + limits: { + playbackRate: + {minValue: -mostPositiveFloat, maxValue: mostPositiveFloat}, + detune: {minValue: -mostPositiveFloat, maxValue: mostPositiveFloat} + } + }, + { + creator: 'createStereoPanner', + args: [], + limits: {pan: {minValue: -1, maxValue: 1}} + }, + { + creator: 'createDynamicsCompressor', + args: [], + // Do not set limits for reduction; it's currently an AudioParam but + // should be a float. + // So let the test fail for reduction. When reduction is changed, + // this test will then + // correctly pass. + limits: { + threshold: {minValue: -100, maxValue: 0}, + knee: {minValue: 0, maxValue: 40}, + ratio: {minValue: 1, maxValue: 20}, + attack: {minValue: 0, maxValue: 1}, + release: {minValue: 0, maxValue: 1} + } + }, + { + creator: 'createBiquadFilter', + args: [], + limits: { + gain: { + minValue: -mostPositiveFloat, + // This complicated expression is used to get all the arithmetic + // to round to the correct single-precision float value for the + // desired max. This also assumes that the implication computes + // the limit as 40 * log10f(std::numeric_limits<float>::max()). + maxValue: + Math.fround(40 * Math.fround(Math.log10(mostPositiveFloat))) + }, + Q: {minValue: -mostPositiveFloat, maxValue: mostPositiveFloat}, + frequency: {minValue: 0, maxValue: sampleRate / 2}, + detune: { + minValue: -Math.fround(1200 * Math.log2(mostPositiveFloat)), + maxValue: Math.fround(1200 * Math.log2(mostPositiveFloat)) + } + } + }, + { + creator: 'createOscillator', + args: [], + limits: { + frequency: {minValue: -sampleRate / 2, maxValue: sampleRate / 2}, + detune: { + minValue: -Math.fround(1200 * Math.log2(mostPositiveFloat)), + maxValue: Math.fround(1200 * Math.log2(mostPositiveFloat)) + } + } + }, + { + creator: 'createPanner', + args: [], + limits: { + positionX: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + positionY: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + positionZ: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + orientationX: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + orientationY: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + orientationZ: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + } + }, + }, + { + creator: 'createConstantSource', + args: [], + limits: { + offset: {minValue: -mostPositiveFloat, maxValue: mostPositiveFloat} + } + }, + // These nodes don't have AudioParams, but we want to test them anyway. + // Any arguments for the + // constructor are pretty much arbitrary; they just need to be valid. + { + creator: 'createBuffer', + args: [1, 1, sampleRate], + }, + {creator: 'createIIRFilter', args: [[1, 2], [1, .9]]}, + { + creator: 'createWaveShaper', + args: [], + }, + { + creator: 'createConvolver', + args: [], + }, + { + creator: 'createAnalyser', + args: [], + }, + { + creator: 'createScriptProcessor', + args: [0], + }, + { + creator: 'createPeriodicWave', + args: [Float32Array.from([0, 0]), Float32Array.from([1, 0])], + }, + { + creator: 'createChannelSplitter', + args: [], + }, + { + creator: 'createChannelMerger', + args: [], + }, + ]; + + let testOnlineConfigs = [ + {creator: 'createMediaElementSource', args: [new Audio()]}, + {creator: 'createMediaStreamDestination', args: []} + // Can't currently test MediaStreamSource because we're using an offline + // context. + ]; + + // Create the contexts so we can use it in the following test. + audit.define('initialize', (task, should) => { + // Just any context so that we can create the nodes. + should(() => { + offlineContext = new OfflineAudioContext(1, 1, sampleRate); + }, 'Create offline context for tests').notThrow(); + should(() => { + onlineContext = new AudioContext(); + }, 'Create online context for tests').notThrow(); + task.done(); + }); + + // Create a task for each entry in testOfflineConfigs + for (let test in testOfflineConfigs) { + let config = testOfflineConfigs[test] + audit.define('Offline ' + config.creator, (function(c) { + return (task, should) => { + let node = offlineContext[c.creator](...c.args); + testLimits(should, c.creator, node, c.limits); + task.done(); + }; + })(config)); + } + + for (let test in testOnlineConfigs) { + let config = testOnlineConfigs[test] + audit.define('Online ' + config.creator, (function(c) { + return (task, should) => { + let node = onlineContext[c.creator](...c.args); + testLimits(should, c.creator, node, c.limits); + task.done(); + }; + })(config)); + } + + // Test the AudioListener params that were added for the automated Panner + audit.define('AudioListener', (task, should) => { + testLimits(should, '', offlineContext.listener, { + positionX: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + positionY: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + positionZ: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + forwardX: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + forwardY: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + forwardZ: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + upX: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + upY: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + }, + upZ: { + minValue: -mostPositiveFloat, + maxValue: mostPositiveFloat, + } + }); + task.done(); + }); + + // Verify that we have tested all the create methods available on the + // context. + audit.define('verifyTests', (task, should) => { + let allNodes = new Set(); + // Create the set of all "create" methods from the context. + for (let method in offlineContext) { + if (typeof offlineContext[method] === 'function' && + method.substring(0, 6) === 'create') { + allNodes.add(method); + } + } + + // Compute the difference between the set of all create methods on the + // context and the set of tests that we've run. + let diff = new Set([...allNodes].filter(x => !testedMethods.has(x))); + + // Can't currently test a MediaStreamSourceNode, so remove it from the + // diff set. + diff.delete('createMediaStreamSource'); + + // It's a test failure if we didn't test all of the create methods in + // the context (except createMediaStreamSource, of course). + let output = []; + if (diff.size) { + for (let item of diff) + output.push(' ' + item.substring(6)); + } + + should(output.length === 0, 'Number of nodes not tested') + .message(': 0', ': ' + output); + + task.done(); + }); + + // Simple test of a few automation methods to verify we get warnings. + audit.define('automation', (task, should) => { + // Just use a DelayNode for testing because the audio param has finite + // limits. + should(() => { + let d = offlineContext.createDelay(); + + // The console output should have the warnings that we're interested + // in. + d.delayTime.setValueAtTime(-1, 0); + d.delayTime.linearRampToValueAtTime(2, 1); + d.delayTime.exponentialRampToValueAtTime(3, 2); + d.delayTime.setTargetAtTime(-1, 3, .1); + d.delayTime.setValueCurveAtTime( + Float32Array.from([.1, .2, 1.5, -1]), 4, .1); + }, 'Test automations (check console logs)').notThrow(); + task.done(); + }); + + audit.run(); + + // Is |object| an AudioParam? We determine this by checking the + // constructor name. + function isAudioParam(object) { + return object && object.constructor.name === 'AudioParam'; + } + + // Does |limitOptions| exist and does it have valid values for the + // expected min and max values? + function hasValidLimits(limitOptions) { + return limitOptions && (typeof limitOptions.minValue === 'number') && + (typeof limitOptions.maxValue === 'number'); + } + + // Check the min and max values for the AudioParam attribute named + // |paramName| for the |node|. The expected limits is given by the + // dictionary |limits|. If some test fails, add the name of the failed + function validateAudioParamLimits(should, node, paramName, limits) { + let nodeName = node.constructor.name; + let parameter = node[paramName]; + let prefix = nodeName + '.' + paramName; + + let success = true; + if (hasValidLimits(limits[paramName])) { + // Verify that the min and max values for the parameter are correct. + let isCorrect = should(parameter.minValue, prefix + '.minValue') + .beEqualTo(limits[paramName].minValue); + isCorrect = should(parameter.maxValue, prefix + '.maxValue') + .beEqualTo(limits[paramName].maxValue) && + isCorrect; + + // Verify that the min and max attributes are read-only. |testValue| + // MUST be a number that can be represented exactly the same way as + // both a double and single float. A small integer works nicely. + const testValue = 42; + parameter.minValue = testValue; + let isReadOnly; + isReadOnly = + should(parameter.minValue, `${prefix}.minValue = ${testValue}`) + .notBeEqualTo(testValue); + + should(isReadOnly, prefix + '.minValue is read-only').beEqualTo(true); + + isCorrect = isReadOnly && isCorrect; + + parameter.maxValue = testValue; + isReadOnly = + should(parameter.maxValue, `${prefix}.maxValue = ${testValue}`) + .notBeEqualTo(testValue); + should(isReadOnly, prefix + '.maxValue is read-only').beEqualTo(true); + + isCorrect = isReadOnly && isCorrect; + + // Now try to set the parameter outside the nominal range. + let newValue = 2 * limits[paramName].minValue - 1; + + let isClipped = true; + let clippingTested = false; + // If the new value is beyond float the largest single-precision + // float, skip the test because Chrome throws an error. + if (newValue >= -mostPositiveFloat) { + parameter.value = newValue; + clippingTested = true; + isClipped = + should( + parameter.value, 'Set ' + prefix + '.value = ' + newValue) + .beEqualTo(parameter.minValue) && + isClipped; + } + + newValue = 2 * limits[paramName].maxValue + 1; + + if (newValue <= mostPositiveFloat) { + parameter.value = newValue; + clippingTested = true; + isClipped = + should( + parameter.value, 'Set ' + prefix + '.value = ' + newValue) + .beEqualTo(parameter.maxValue) && + isClipped; + } + + if (clippingTested) { + should( + isClipped, + prefix + ' was clipped to lie within the nominal range') + .beEqualTo(true); + } + + isCorrect = isCorrect && isClipped; + + success = isCorrect && success; + } else { + // Test config didn't specify valid limits. Fail this test! + should( + clippingTested, + 'Limits for ' + nodeName + '.' + paramName + + ' were correctly defined') + .beEqualTo(false); + + success = false; + } + + return success; + } + + // Test all of the AudioParams for |node| using the expected values in + // |limits|. |creatorName| is the name of the method to create the node, + // and is used to keep trakc of which tests we've run. + function testLimits(should, creatorName, node, limits) { + let nodeName = node.constructor.name; + testedMethods.add(creatorName); + + let success = true; + + // List of all of the AudioParams that were tested. + let audioParams = []; + + // List of AudioParams that failed the test. + let incorrectParams = []; + + // Look through all of the keys for the node and extract just the + // AudioParams + Object.keys(node.__proto__).forEach(function(paramName) { + if (isAudioParam(node[paramName])) { + audioParams.push(paramName); + let isValid = validateAudioParamLimits( + should, node, paramName, limits, incorrectParams); + if (!isValid) + incorrectParams.push(paramName); + + success = isValid && success; + } + }); + + // Print an appropriate message depending on whether there were + // AudioParams defined or not. + if (audioParams.length) { + let message = + 'Nominal ranges for AudioParam(s) of ' + node.constructor.name; + should(success, message) + .message('are correct', 'are incorrect for: ' + +incorrectParams); + return success; + } else { + should(!limits, nodeName) + .message( + 'has no AudioParams as expected', + 'has no AudioParams but test expected ' + limits); + } + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setTargetAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setTargetAtTime.html new file mode 100644 index 0000000000..faf00c007b --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setTargetAtTime.html @@ -0,0 +1,61 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test AudioParam.setTargetAtTime + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audioparam-testing.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + // Play a long DC signal out through an AudioGainNode, and call + // setValueAtTime() and setTargetAtTime at regular intervals to set the + // starting value and the target value. Each time interval has a ramp with + // a different starting and target value so that there is a discontinuity + // at each time interval boundary. The discontinuity is for testing + // timing. Also, we alternate between an increasing and decreasing ramp + // for each interval. + + // Number of tests to run. + let numberOfTests = 100; + + // Max allowed difference between the rendered data and the expected + // result. + let maxAllowedError = 6.5683e-4 + + // The AudioGainNode starts with this value instead of the default value. + let initialValue = 100; + + // Set the gain node value to the specified value at the specified time. + function setValue(value, time) { + gainNode.gain.setValueAtTime(value, time); + } + + // Generate an exponential approach starting at |startTime| with a target + // value of |value|. + function automation(value, startTime, endTime){ + // endTime is not used for setTargetAtTime. + gainNode.gain.setTargetAtTime(value, startTime, timeConstant)} + + audit.define( + { + label: 'test', + description: 'AudioParam setTargetAtTime() functionality.' + }, + function(task, should) { + createAudioGraphAndTest( + task, should, numberOfTests, initialValue, setValue, automation, + 'setTargetAtTime()', maxAllowedError, + createExponentialApproachArray); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueAtTime.html new file mode 100644 index 0000000000..ab2edfd009 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueAtTime.html @@ -0,0 +1,57 @@ +<!DOCTYPE html> +<html> + <head> + <title> + audioparam-setValueAtTime.html + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audioparam-testing.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + // Play a long DC signal out through an AudioGainNode, and call + // setValueAtTime() at regular intervals to set the value for the duration + // of the interval. Each time interval has different value so that there + // is a discontinuity at each time interval boundary. The discontinuity + // is for testing timing. + + // Number of tests to run. + let numberOfTests = 100; + + // Max allowed difference between the rendered data and the expected + // result. + let maxAllowedError = 6e-8; + + // Set the gain node value to the specified value at the specified time. + function setValue(value, time) { + gainNode.gain.setValueAtTime(value, time); + } + + // For testing setValueAtTime(), we don't need to do anything for + // automation. because the value at the beginning of the interval is set + // by setValue and it remains constant for the duration, which is what we + // want. + function automation(value, startTime, endTime) { + // Do nothing. + } + + audit.define( + { + label: 'test', + description: 'AudioParam setValueAtTime() functionality.' + }, + function(task, should) { + createAudioGraphAndTest( + task, should, numberOfTests, 1, setValue, automation, + 'setValueAtTime()', maxAllowedError, createConstantArray); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueCurve-exceptions.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueCurve-exceptions.html new file mode 100644 index 0000000000..ed0c15fb9b --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueCurve-exceptions.html @@ -0,0 +1,426 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test Exceptions from setValueCurveAtTime + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + <body> + <script id="layout-test-code"> + let sampleRate = 48000; + // Some short duration because we don't need to run the test for very + // long. + let testDurationSec = 0.125; + let testDurationFrames = testDurationSec * sampleRate; + + let audit = Audit.createTaskRunner(); + + audit.define('setValueCurve', (task, should) => { + let context = + new OfflineAudioContext(1, testDurationFrames, sampleRate); + let g = context.createGain(); + let curve = new Float32Array(2); + + // Start time and duration for setValueCurveAtTime + let curveStartTime = 0.1 * testDurationSec; + let duration = 0.1 * testDurationSec; + + // Some time that is known to be during the setValueCurveTime interval. + let automationTime = curveStartTime + duration / 2; + + should( + () => { + g.gain.setValueCurveAtTime(curve, curveStartTime, duration); + }, + 'setValueCurveAtTime(curve, ' + curveStartTime + ', ' + duration + + ')') + .notThrow(); + + should( + function() { + g.gain.setValueAtTime(1, automationTime); + }, + 'setValueAtTime(1, ' + automationTime + ')') + .throw(DOMException, 'NotSupportedError'); + + should( + function() { + g.gain.linearRampToValueAtTime(1, automationTime); + }, + 'linearRampToValueAtTime(1, ' + automationTime + ')') + .throw(DOMException, 'NotSupportedError'); + + should( + function() { + g.gain.exponentialRampToValueAtTime(1, automationTime); + }, + 'exponentialRampToValueAtTime(1, ' + automationTime + ')') + .throw(DOMException, 'NotSupportedError'); + + should( + function() { + g.gain.setTargetAtTime(1, automationTime, 1); + }, + 'setTargetAtTime(1, ' + automationTime + ', 1)') + .throw(DOMException, 'NotSupportedError'); + + should( + function() { + g.gain.setValueAtTime(1, curveStartTime + 1.1 * duration); + }, + 'setValueAtTime(1, ' + (curveStartTime + 1.1 * duration) + ')') + .notThrow(); + + task.done(); + }); + + audit.define('value setter', (task, should) => { + let context = + new OfflineAudioContext(1, testDurationFrames, sampleRate); + let g = context.createGain(); + let curve = new Float32Array(2); + + // Start time and duration for setValueCurveAtTime + let curveStartTime = 0.; + let duration = 0.2 * testDurationSec; + + // Some time that is known to be during the setValueCurveTime interval. + let automationTime = 0.; + + should( + () => { + g.gain.setValueCurveAtTime(curve, curveStartTime, duration); + }, + 'setValueCurveAtTime(curve, ' + curveStartTime + ', ' + duration + + ')') + .notThrow(); + + should( + function() { + g.gain.value = 0.; + }, + 'value setter') + .throw(DOMException, 'NotSupportedError'); + + task.done(); + }); + + audit.define('automations', (task, should) => { + let context = + new OfflineAudioContext(1, testDurationFrames, sampleRate); + let g = context.createGain(); + + let curve = new Float32Array(2); + // Start time and duration for setValueCurveAtTime + let startTime = 0; + let timeInterval = testDurationSec / 10; + let time; + + startTime += timeInterval; + should(() => { + g.gain.linearRampToValueAtTime(1, startTime); + }, 'linearRampToValueAtTime(1, ' + startTime + ')').notThrow(); + + startTime += timeInterval; + should(() => { + g.gain.exponentialRampToValueAtTime(1, startTime); + }, 'exponentialRampToValueAtTime(1, ' + startTime + ')').notThrow(); + + startTime += timeInterval; + should(() => { + g.gain.setTargetAtTime(1, startTime, 0.1); + }, 'setTargetAtTime(1, ' + startTime + ', 0.1)').notThrow(); + + startTime += timeInterval; + should(() => { + g.gain.setValueCurveAtTime(curve, startTime, 0.1); + }, 'setValueCurveAtTime(curve, ' + startTime + ', 0.1)').notThrow(); + + // Now try to setValueCurve that overlaps each of the above automations + startTime = timeInterval / 2; + + for (let k = 0; k < 4; ++k) { + time = startTime + timeInterval * k; + should( + () => { + g.gain.setValueCurveAtTime(curve, time, 0.01); + }, + 'setValueCurveAtTime(curve, ' + time + ', 0.01)') + .throw(DOMException, 'NotSupportedError'); + } + + // Elements of setValueCurve should be finite. + should( + () => { + g.gain.setValueCurveAtTime( + Float32Array.from([NaN, NaN]), time, 0.01); + }, + 'setValueCurveAtTime([NaN, NaN], ' + time + ', 0.01)') + .throw(TypeError); + + should( + () => { + g.gain.setValueCurveAtTime( + Float32Array.from([1, Infinity]), time, 0.01); + }, + 'setValueCurveAtTime([1, Infinity], ' + time + ', 0.01)') + .throw(TypeError); + + let d = context.createDelay(); + // Check that we get warnings for out-of-range values and also throw for + // non-finite values. + should( + () => { + d.delayTime.setValueCurveAtTime( + Float32Array.from([1, 5]), time, 0.01); + }, + 'delayTime.setValueCurveAtTime([1, 5], ' + time + ', 0.01)') + .notThrow(); + + should( + () => { + d.delayTime.setValueCurveAtTime( + Float32Array.from([1, 5, Infinity]), time, 0.01); + }, + 'delayTime.setValueCurveAtTime([1, 5, Infinity], ' + time + + ', 0.01)') + .throw(TypeError); + + // One last test that prints out lots of digits for the time. + time = Math.PI / 100; + should( + () => { + g.gain.setValueCurveAtTime(curve, time, 0.01); + }, + 'setValueCurveAtTime(curve, ' + time + ', 0.01)') + .throw(DOMException, 'NotSupportedError'); + + task.done(); + }); + + audit.define('catch-exception', (task, should) => { + // Verify that the curve isn't inserted into the time line even if we + // catch the exception. + let context = + new OfflineAudioContext(1, testDurationFrames, sampleRate); + let gain = context.createGain(); + let source = context.createBufferSource(); + let buffer = context.createBuffer(1, 1, context.sampleRate); + buffer.getChannelData(0)[0] = 1; + source.buffer = buffer; + source.loop = true; + + source.connect(gain); + gain.connect(context.destination); + + gain.gain.setValueAtTime(1, 0); + try { + // The value curve has an invalid element. This automation shouldn't + // be inserted into the timeline at all. + gain.gain.setValueCurveAtTime( + Float32Array.from([0, NaN]), 128 / context.sampleRate, .5); + } catch (e) { + }; + source.start(); + + context.startRendering() + .then(function(resultBuffer) { + // Since the setValueCurve wasn't inserted, the output should be + // exactly 1 for the entire duration. + should( + resultBuffer.getChannelData(0), + 'Handled setValueCurve exception so output') + .beConstantValueOf(1); + + }) + .then(() => task.done()); + }); + + audit.define('start-end', (task, should) => { + let context = + new OfflineAudioContext(1, testDurationFrames, sampleRate); + let g = context.createGain(); + let curve = new Float32Array(2); + + // Verify that a setValueCurve can start at the end of an automation. + let time = 0; + let timeInterval = testDurationSec / 50; + should(() => { + g.gain.setValueAtTime(1, time); + }, 'setValueAtTime(1, ' + time + ')').notThrow(); + + time += timeInterval; + should(() => { + g.gain.linearRampToValueAtTime(0, time); + }, 'linearRampToValueAtTime(0, ' + time + ')').notThrow(); + + // setValueCurve starts at the end of the linear ramp. This should be + // fine. + should( + () => { + g.gain.setValueCurveAtTime(curve, time, timeInterval); + }, + 'setValueCurveAtTime(..., ' + time + ', ' + timeInterval + ')') + .notThrow(); + + // exponentialRamp ending one interval past the setValueCurve should be + // fine. + time += 2 * timeInterval; + should(() => { + g.gain.exponentialRampToValueAtTime(1, time); + }, 'exponentialRampToValueAtTime(1, ' + time + ')').notThrow(); + + // setValueCurve starts at the end of the exponential ramp. This should + // be fine. + should( + () => { + g.gain.setValueCurveAtTime(curve, time, timeInterval); + }, + 'setValueCurveAtTime(..., ' + time + ', ' + timeInterval + ')') + .notThrow(); + + // setValueCurve at the end of the setValueCurve should be fine. + time += timeInterval; + should( + () => { + g.gain.setValueCurveAtTime(curve, time, timeInterval); + }, + 'setValueCurveAtTime(..., ' + time + ', ' + timeInterval + ')') + .notThrow(); + + // setValueAtTime at the end of setValueCurve should be fine. + time += timeInterval; + should(() => { + g.gain.setValueAtTime(0, time); + }, 'setValueAtTime(0, ' + time + ')').notThrow(); + + // setValueCurve at the end of setValueAtTime should be fine. + should( + () => { + g.gain.setValueCurveAtTime(curve, time, timeInterval); + }, + 'setValueCurveAtTime(..., ' + time + ', ' + timeInterval + ')') + .notThrow(); + + // setTarget starting at the end of setValueCurve should be fine. + time += timeInterval; + should(() => { + g.gain.setTargetAtTime(1, time, 1); + }, 'setTargetAtTime(1, ' + time + ', 1)').notThrow(); + + task.done(); + }); + + audit.define('curve overlap', (task, should) => { + let context = + new OfflineAudioContext(1, testDurationFrames, sampleRate); + let g = context.createGain(); + let startTime = 5; + let startTimeLater = 10; + let startTimeEarlier = 2.5; + let curveDuration = 10; + let curveDurationShorter = 5; + let curve = [1, 2, 3]; + + // An initial curve event + should( + () => { + g.gain.setValueCurveAtTime(curve, startTime, curveDuration); + }, + `g.gain.setValueCurveAtTime([${curve}], ${startTime}, ${curveDuration})`) + .notThrow(); + + // Check that an exception is thrown when trying to overlap two curves, + // in various ways + + // Same start time and end time (curve exactly overlapping) + should( + () => { + g.gain.setValueCurveAtTime(curve, startTime, curveDuration); + }, + `second g.gain.setValueCurveAtTime([${curve}], ${startTime}, ${curveDuration})`) + .throw(DOMException, 'NotSupportedError'); + // Same start time, shorter end time + should( + () => { + g.gain.setValueCurveAtTime(curve, startTime, curveDurationShorter); + }, + `g.gain.setValueCurveAtTime([${curve}], ${startTime}, ${curveDurationShorter})`) + .throw(DOMException, 'NotSupportedError'); + // Earlier start time, end time after the start time an another curve + should( + () => { + g.gain.setValueCurveAtTime(curve, startTimeEarlier, curveDuration); + }, + `g.gain.setValueCurveAtTime([${curve}], ${startTimeEarlier}, ${curveDuration})`) + .throw(DOMException, 'NotSupportedError'); + // Start time after the start time of the other curve, but earlier than + // its end. + should( + () => { + g.gain.setValueCurveAtTime(curve, startTimeLater, curveDuration); + }, + `g.gain.setValueCurveAtTime([${curve}], ${startTimeLater}, ${curveDuration})`) + .throw(DOMException, 'NotSupportedError'); + + // New event wholly contained inside existing event + should( + () => { + g.gain.setValueCurveAtTime(curve, startTime + 1, curveDuration - 1); + }, + `g.gain.setValueCurveAtTime([${curve}], ${startTime+1}, ${curveDuration-1})`) + .throw(DOMException, 'NotSupportedError'); + // Old event completely contained inside new event + should( + () => { + g.gain.setValueCurveAtTime(curve, startTime - 1, curveDuration + 1); + }, + `g.gain.setValueCurveAtTime([${curve}], ${startTime-1}, ${curveDuration+1})`) + .throw(DOMException, 'NotSupportedError'); + // Setting an event exactly at the end of the curve should work. + should( + () => { + g.gain.setValueAtTime(1.0, startTime + curveDuration); + }, + `g.gain.setValueAtTime(1.0, ${startTime + curveDuration})`) + .notThrow(); + + task.done(); + }); + + audit.define('curve lengths', (task, should) => { + let context = + new OfflineAudioContext(1, testDurationFrames, sampleRate); + let g = context.createGain(); + let time = 0; + + // Check for invalid curve lengths + should( + () => { + g.gain.setValueCurveAtTime(Float32Array.from([]), time, 0.01); + }, + 'setValueCurveAtTime([], ' + time + ', 0.01)') + .throw(DOMException, 'InvalidStateError'); + + should( + () => { + g.gain.setValueCurveAtTime(Float32Array.from([1]), time, 0.01); + }, + 'setValueCurveAtTime([1], ' + time + ', 0.01)') + .throw(DOMException, 'InvalidStateError'); + + should(() => { + g.gain.setValueCurveAtTime(Float32Array.from([1, 2]), time, 0.01); + }, 'setValueCurveAtTime([1,2], ' + time + ', 0.01)').notThrow(); + + task.done(); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueCurveAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueCurveAtTime.html new file mode 100644 index 0000000000..de8406244b --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-setValueCurveAtTime.html @@ -0,0 +1,71 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test AudioParam.setValueCurveAtTime + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audioparam-testing.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + // Play a long DC signal out through an AudioGainNode and for each time + // interval call setValueCurveAtTime() to set the values for the duration + // of the interval. Each curve is a sine wave, and we assume that the + // time interval is not an exact multiple of the period. This causes a + // discontinuity between time intervals which is used to test timing. + + // Number of tests to run. + let numberOfTests = 20; + + // Max allowed difference between the rendered data and the expected + // result. Because of the linear interpolation, the rendered curve isn't + // exactly the same as the reference. This value is experimentally + // determined. + let maxAllowedError = 3.7194e-6; + + // The amplitude of the sine wave. + let sineAmplitude = 1; + + // Frequency of the sine wave. + let freqHz = 440; + + // Curve to use for setValueCurveAtTime(). + let curve; + + // Sets the curve data for the entire time interval. + function automation(value, startTime, endTime) { + gainNode.gain.setValueCurveAtTime( + curve, startTime, endTime - startTime); + } + + audit.define( + { + label: 'test', + description: 'AudioParam setValueCurveAtTime() functionality.' + }, + function(task, should) { + // The curve of values to use. + curve = createSineWaveArray( + timeInterval, freqHz, sineAmplitude, sampleRate); + + createAudioGraphAndTest( + task, should, numberOfTests, sineAmplitude, + function(k) { + // Don't need to set the value. + }, + automation, 'setValueCurveAtTime()', maxAllowedError, + createReferenceSineArray, + 2 * Math.PI * sineAmplitude * freqHz / sampleRate, + differenceErrorMetric); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-summingjunction.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-summingjunction.html new file mode 100644 index 0000000000..9084942f70 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/audioparam-summingjunction.html @@ -0,0 +1,120 @@ +<!DOCTYPE html> +<!-- +Tests that multiple audio-rate signals (AudioNode outputs) can be connected to an AudioParam +and that these signals are summed, along with the AudioParams intrinsic value. +--> +<html> + <head> + <title> + audioparam-summingjunction.html + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/mix-testing.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + let sampleRate = 44100.0; + let lengthInSeconds = 1; + + let context = 0; + + // Buffers used by the two gain controlling sources. + let linearRampBuffer; + let toneBuffer; + let toneFrequency = 440; + + // Arbitrary non-zero value. + let baselineGain = 5; + + // Allow for a small round-off error. + let maxAllowedError = 1e-6; + + function checkResult(renderedBuffer, should) { + let renderedData = renderedBuffer.getChannelData(0); + + // Get buffer data from the two sources used to control gain. + let linearRampData = linearRampBuffer.getChannelData(0); + let toneData = toneBuffer.getChannelData(0); + + let n = renderedBuffer.length; + + should(n, 'Rendered signal length').beEqualTo(linearRampBuffer.length); + + // Check that the rendered result exactly matches the sum of the + // intrinsic gain plus the two sources used to control gain. This is + // because we're changing the gain of a signal having constant value 1. + let success = true; + for (let i = 0; i < n; ++i) { + let expectedValue = baselineGain + linearRampData[i] + toneData[i]; + let error = Math.abs(expectedValue - renderedData[i]); + + if (error > maxAllowedError) { + success = false; + break; + } + } + + should( + success, + 'Rendered signal matches sum of two audio-rate gain changing signals plus baseline gain') + .beTrue(); + } + + audit.define('test', function(task, should) { + let sampleFrameLength = sampleRate * lengthInSeconds; + + // Create offline audio context. + context = new OfflineAudioContext(1, sampleFrameLength, sampleRate); + + // Create buffer used by the source which will have its gain controlled. + let constantOneBuffer = + createConstantBuffer(context, sampleFrameLength, 1); + let constantSource = context.createBufferSource(); + constantSource.buffer = constantOneBuffer; + + // Create 1st buffer used to control gain (a linear ramp). + linearRampBuffer = createLinearRampBuffer(context, sampleFrameLength); + let gainSource1 = context.createBufferSource(); + gainSource1.buffer = linearRampBuffer; + + // Create 2st buffer used to control gain (a simple sine wave tone). + toneBuffer = + createToneBuffer(context, toneFrequency, lengthInSeconds, 1); + let gainSource2 = context.createBufferSource(); + gainSource2.buffer = toneBuffer; + + // Create a gain node controlling the gain of constantSource and make + // the connections. + let gainNode = context.createGain(); + + // Intrinsic baseline gain. + // This gain value should be summed with gainSource1 and gainSource2. + gainNode.gain.value = baselineGain; + + constantSource.connect(gainNode); + gainNode.connect(context.destination); + + // Connect two audio-rate signals to control the .gain AudioParam. + gainSource1.connect(gainNode.gain); + gainSource2.connect(gainNode.gain); + + // Start all sources at time 0. + constantSource.start(0); + gainSource1.start(0); + gainSource2.start(0); + + context.startRendering().then(buffer => { + checkResult(buffer, should); + task.done(); + }); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/automation-rate-testing.js b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/automation-rate-testing.js new file mode 100644 index 0000000000..43279f91d6 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/automation-rate-testing.js @@ -0,0 +1,155 @@ +// Test k-rate vs a-rate AudioParams. +// +// |options| describes how the testing of the AudioParam should be done: +// +// sourceNodeName: name of source node to use for testing; defaults to +// 'OscillatorNode'. If set to 'none', then no source node +// is created for testing and it is assumed that the AudioNode +// under test are sources and need to be started. +// verifyPieceWiseConstant: if true, verify that the k-rate output is +// piecewise constant for each render quantum. +// nodeName: name of the AudioNode to be tested +// nodeOptions: options to be used in the AudioNode constructor +// +// prefix: Prefix for all output messages (to make them unique for +// testharness) +// +// rateSettings: A vector of dictionaries specifying how to set the automation +// rate(s): +// name: Name of the AudioParam +// value: The automation rate for the AudioParam given by |name|. +// +// automations: A vector of dictionaries specifying how to automate each +// AudioParam: +// name: Name of the AudioParam +// +// methods: A vector of dictionaries specifying the automation methods to +// be used for testing: +// name: Automation method to call +// options: Arguments for the automation method +// +// Testing is somewhat rudimentary. We create two nodes of the same type. One +// node uses the default automation rates for each AudioParam (expecting them to +// be a-rate). The second node sets the automation rate of AudioParams to +// "k-rate". The set is speciified by |options.rateSettings|. +// +// For both of these nodes, the same set of automation methods (given by +// |options.automations|) is applied. A simple oscillator is connected to each +// node which in turn are connected to different channels of an offline context. +// Channel 0 is the k-rate node output; channel 1, the a-rate output; and +// channel 3, the difference between the outputs. +// +// Success is declared if the difference signal is not exactly zero. This means +// the the automations did different things, as expected. +// +// The promise from |startRendering| is returned. +function doTest(context, should, options) { + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + let src = null; + + // Skip creating a source to drive the graph if |sourceNodeName| is 'none'. + // If |sourceNodeName| is given, use that, else default to OscillatorNode. + if (options.sourceNodeName !== 'none') { + src = new window[options.sourceNodeName || 'OscillatorNode'](context); + } + + let kRateNode = new window[options.nodeName](context, options.nodeOptions); + let aRateNode = new window[options.nodeName](context, options.nodeOptions); + let inverter = new GainNode(context, {gain: -1}); + + // Set kRateNode filter to use k-rate params. + options.rateSettings.forEach(setting => { + kRateNode[setting.name].automationRate = setting.value; + // Mostly for documentation in the output. These should always + // pass. + should( + kRateNode[setting.name].automationRate, + `${options.prefix}: Setting ${ + setting.name + }.automationRate to "${setting.value}"`) + .beEqualTo(setting.value); + }); + + // Run through all automations for each node separately. (Mostly to keep + // output of automations together.) + options.automations.forEach(param => { + param.methods.forEach(method => { + // Most for documentation in the output. These should never throw. + let message = `${param.name}.${method.name}(${method.options})` + should(() => { + kRateNode[param.name][method.name](...method.options); + }, options.prefix + ': k-rate node: ' + message).notThrow(); + }); + }); + options.automations.forEach(param => { + param.methods.forEach(method => { + // Most for documentation in the output. These should never throw. + let message = `${param.name}.${method.name}(${method.options})` + should(() => { + aRateNode[param.name][method.name](...method.options); + }, options.prefix + ': a-rate node:' + message).notThrow(); + }); + }); + + // Connect the source, if specified. + if (src) { + src.connect(kRateNode); + src.connect(aRateNode); + } + + // The k-rate result is channel 0, and the a-rate result is channel 1. + kRateNode.connect(merger, 0, 0); + aRateNode.connect(merger, 0, 1); + + // Compute the difference between the a-rate and k-rate results and send + // that to channel 2. + kRateNode.connect(merger, 0, 2); + aRateNode.connect(inverter).connect(merger, 0, 2); + + if (src) { + src.start(); + } else { + // If there's no source, then assume the test nodes are sources and start + // them. + kRateNode.start(); + aRateNode.start(); + } + + return context.startRendering().then(renderedBuffer => { + let kRateOutput = renderedBuffer.getChannelData(0); + let aRateOutput = renderedBuffer.getChannelData(1); + let diff = renderedBuffer.getChannelData(2); + + // Some informative messages to print out values of the k-rate and + // a-rate outputs. These should always pass. + should( + kRateOutput, `${options.prefix}: Output of k-rate ${options.nodeName}`) + .beEqualToArray(kRateOutput); + should( + aRateOutput, `${options.prefix}: Output of a-rate ${options.nodeName}`) + .beEqualToArray(aRateOutput); + + // The real test. If k-rate AudioParam is working correctly, the + // k-rate result MUST differ from the a-rate result. + should( + diff, + `${ + options.prefix + }: Difference between a-rate and k-rate ${options.nodeName}`) + .notBeConstantValueOf(0); + + if (options.verifyPieceWiseConstant) { + // Verify that the output from the k-rate parameter is step-wise + // constant. + for (let k = 0; k < kRateOutput.length; k += 128) { + should( + kRateOutput.slice(k, k + 128), + `${options.prefix} k-rate output [${k}: ${k + 127}]`) + .beConstantValueOf(kRateOutput[k]); + } + } + }); +} diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/automation-rate.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/automation-rate.html new file mode 100644 index 0000000000..a3c11994bb --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/automation-rate.html @@ -0,0 +1,167 @@ +<!doctype html> +<html> + <head> + <title>AudioParam.automationRate tests</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + + <body> + <script> + // For each node that has an AudioParam, verify that the default + // |automationRate| has the expected value and that we can change it or + // throw an error if it can't be changed. + + // Any valid sample rate is fine; we don't actually render anything in the + // tests. + let sampleRate = 8000; + + let audit = Audit.createTaskRunner(); + + // Array of tests. Each test is a dictonary consisting of the name of the + // node and an array specifying the AudioParam's of the node. This array + // in turn gives the name of the AudioParam, the default value for the + // |automationRate|, and whether it is fixed (isFixed). + const tests = [ + { + nodeName: 'AudioBufferSourceNode', + audioParams: [ + {name: 'detune', defaultRate: 'k-rate', isFixed: true}, + {name: 'playbackRate', defaultRate: 'k-rate', isFixed: true} + ] + }, + { + nodeName: 'BiquadFilterNode', + audioParams: [ + {name: 'frequency', defaultRate: 'a-rate', isFixed: false}, + {name: 'detune', defaultRate: 'a-rate', isFixed: false}, + {name: 'Q', defaultRate: 'a-rate', isFixed: false}, + {name: 'gain', defaultRate: 'a-rate', isFixed: false}, + ] + }, + { + nodeName: 'ConstantSourceNode', + audioParams: [{name: 'offset', defaultRate: 'a-rate', isFixed: false}] + }, + { + nodeName: 'DelayNode', + audioParams: + [{name: 'delayTime', defaultRate: 'a-rate', isFixed: false}] + }, + { + nodeName: 'DynamicsCompressorNode', + audioParams: [ + {name: 'threshold', defaultRate: 'k-rate', isFixed: true}, + {name: 'knee', defaultRate: 'k-rate', isFixed: true}, + {name: 'ratio', defaultRate: 'k-rate', isFixed: true}, + {name: 'attack', defaultRate: 'k-rate', isFixed: true}, + {name: 'release', defaultRate: 'k-rate', isFixed: true} + ] + }, + { + nodeName: 'GainNode', + audioParams: [{name: 'gain', defaultRate: 'a-rate', isFixed: false}] + }, + { + nodeName: 'OscillatorNode', + audioParams: [ + {name: 'frequency', defaultRate: 'a-rate', isFixed: false}, + {name: 'detune', defaultRate: 'a-rate', isFixed: false} + ] + }, + { + nodeName: 'PannerNode', + audioParams: [ + {name: 'positionX', defaultRate: 'a-rate', isFixed: false}, + {name: 'positionY', defaultRate: 'a-rate', isFixed: false}, + {name: 'positionZ', defaultRate: 'a-rate', isFixed: false}, + {name: 'orientationX', defaultRate: 'a-rate', isFixed: false}, + {name: 'orientationY', defaultRate: 'a-rate', isFixed: false}, + {name: 'orientationZ', defaultRate: 'a-rate', isFixed: false}, + ] + }, + { + nodeName: 'StereoPannerNode', + audioParams: [{name: 'pan', defaultRate: 'a-rate', isFixed: false}] + }, + ]; + + tests.forEach(test => { + // Define a separate test for each test entry. + audit.define(test.nodeName, (task, should) => { + let context = new OfflineAudioContext( + {length: sampleRate, sampleRate: sampleRate}); + // Construct the node and test each AudioParam of the node. + let node = new window[test.nodeName](context); + test.audioParams.forEach(param => { + testAudioParam( + should, {nodeName: test.nodeName, node: node, param: param}); + }); + + task.done(); + }); + }); + + // AudioListener needs it's own special test since it's not a node. + audit.define('AudioListener', (task, should) => { + let context = new OfflineAudioContext( + {length: sampleRate, sampleRate: sampleRate}); + + [{name: 'positionX', defaultRate: 'a-rate', isFixed: false}, + {name: 'positionY', defaultRate: 'a-rate', isFixed: false}, + {name: 'positionZ', defaultRate: 'a-rate', isFixed: false}, + {name: 'forwardX', defaultRate: 'a-rate', isFixed: false}, + {name: 'forwardY', defaultRate: 'a-rate', isFixed: false}, + {name: 'forwardZ', defaultRate: 'a-rate', isFixed: false}, + {name: 'upX', defaultRate: 'a-rate', isFixed: false}, + {name: 'upY', defaultRate: 'a-rate', isFixed: false}, + {name: 'upZ', defaultRate: 'a-rate', isFixed: false}, + ].forEach(param => { + testAudioParam(should, { + nodeName: 'AudioListener', + node: context.listener, + param: param + }); + }); + task.done(); + }); + + audit.run(); + + function testAudioParam(should, options) { + let param = options.param; + let audioParam = options.node[param.name]; + let defaultRate = param.defaultRate; + + // Verify that the default value is correct. + should( + audioParam.automationRate, + `Default ${options.nodeName}.${param.name}.automationRate`) + .beEqualTo(defaultRate); + + // Try setting the rate to a different rate. If the |automationRate| + // is fixed, expect an error. Otherwise, expect no error and expect + // the value is changed to the new value. + let newRate = defaultRate === 'a-rate' ? 'k-rate' : 'a-rate'; + let setMessage = `Set ${ + options.nodeName + }.${param.name}.automationRate to "${newRate}"` + + if (param.isFixed) { + should(() => audioParam.automationRate = newRate, setMessage) + .throw(DOMException, 'InvalidStateError'); + } + else { + should(() => audioParam.automationRate = newRate, setMessage) + .notThrow(); + should( + audioParam.automationRate, + `${options.nodeName}.${param.name}.automationRate`) + .beEqualTo(newRate); + } + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/cancel-scheduled-values.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/cancel-scheduled-values.html new file mode 100644 index 0000000000..ac1da8cd51 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/cancel-scheduled-values.html @@ -0,0 +1,155 @@ +<!doctype html> +<html> + <head> + <title> + cancelScheduledValues + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + <body> + <script> + let sampleRate = 8000; + let renderFrames = 8000; + + let audit = Audit.createTaskRunner(); + + audit.define( + {label: 'cancel-time', description: 'handle cancelTime values'}, + (task, should) => { + let context = new OfflineAudioContext({ + numberOfChannels: 1, + length: renderFrames, + sampleRate: sampleRate + }); + + let src = new ConstantSourceNode(context); + src.connect(context.destination); + + should( + () => src.offset.cancelScheduledValues(-1), + 'cancelScheduledValues(-1)') + .throw(RangeError); + + // These are TypeErrors because |cancelTime| is a + // double, not unrestricted double. + should( + () => src.offset.cancelScheduledValues(NaN), + 'cancelScheduledValues(NaN)') + .throw(TypeError); + + should( + () => src.offset.cancelScheduledValues(Infinity), + 'cancelScheduledValues(Infinity)') + .throw(TypeError); + + task.done(); + }); + + audit.define( + {label: 'cancel1', description: 'cancel setValueCurve'}, + (task, should) => { + let context = new OfflineAudioContext({ + numberOfChannels: 1, + length: renderFrames, + sampleRate: sampleRate + }); + + let src = new ConstantSourceNode(context); + let gain = new GainNode(context); + src.connect(gain).connect(context.destination); + + // Initial time and value for first automation (setValue) + let time0 = 0; + let value0 = 0.5; + + // Time and duration of the setValueCurve. We'll also schedule a + // setValue at the same time. + let value1 = 1.5; + let curveStartTime = 0.25; + let curveDuration = 0.25; + + // Time at which to cancel events + let cancelTime = 0.3; + + // Time and value for event added after cancelScheduledValues has + // been called. + let time2 = curveStartTime + curveDuration / 2; + let value2 = 3; + + // Self-consistency checks for the test. + should(cancelTime, 'cancelTime is after curve start') + .beGreaterThan(curveStartTime); + should(cancelTime, 'cancelTime is before curve ends') + .beLessThan(curveStartTime + curveDuration); + + // These assertions are just to show what's happening + should( + () => gain.gain.setValueAtTime(value0, time0), + `gain.gain.setValueAtTime(${value0}, ${time0})`) + .notThrow(); + // setValue at the sime time as the curve, to test that this event + // wasn't rmeoved. + should( + () => gain.gain.setValueAtTime(value1, curveStartTime), + `gain.gain.setValueAtTime(${value1}, ${curveStartTime})`) + .notThrow(); + + should( + () => gain.gain.setValueCurveAtTime( + [1, -1], curveStartTime, curveDuration), + `gain.gain.setValueCurveAtTime(..., ${curveStartTime}, ${ + curveDuration})`) + .notThrow(); + + // An event after the curve to verify this is removed. + should( + () => gain.gain.setValueAtTime( + 99, curveStartTime + curveDuration), + `gain.gain.setValueAtTime(99, ${ + curveStartTime + curveDuration})`) + .notThrow(); + + // Cancel events now. + should( + () => gain.gain.cancelScheduledValues(cancelTime), + `gain.gain.cancelScheduledValues(${cancelTime})`) + .notThrow(); + + // Simple check that the setValueCurve is gone, by scheduling + // something in the middle of the (now deleted) event + should( + () => gain.gain.setValueAtTime(value2, time2), + `gain.gain.setValueAtTime(${value2}, ${time2})`) + .notThrow(); + + src.start(); + context.startRendering() + .then(buffer => { + let audio = buffer.getChannelData(0); + + // After canceling events, verify that the outputs have the + // desired values. + let curveFrame = curveStartTime * context.sampleRate; + should( + audio.slice(0, curveFrame), `output[0:${curveFrame - 1}]`) + .beConstantValueOf(value0); + + let time2Frame = time2 * context.sampleRate; + should( + audio.slice(curveFrame, time2Frame), + `output[${curveFrame}:${time2Frame - 1}]`) + .beConstantValueOf(value1); + + should(audio.slice(time2Frame), `output[${time2Frame}:]`) + .beConstantValueOf(value2); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/event-insertion.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/event-insertion.html new file mode 100644 index 0000000000..b846f982ab --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/event-insertion.html @@ -0,0 +1,411 @@ +<!doctype html> +<html> + <head> + <title> + Test Handling of Event Insertion + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audio-param.js"></script> + </head> + <body> + <script id="layout-test-code"> + let audit = Audit.createTaskRunner(); + + // Use a power of two for the sample rate so there's no round-off in + // computing time from frame. + let sampleRate = 16384; + + audit.define( + {label: 'Insert same event at same time'}, (task, should) => { + // Context for testing. + let context = new OfflineAudioContext( + {length: 16384, sampleRate: sampleRate}); + + // The source node to use. Automations will be scheduled here. + let src = new ConstantSourceNode(context, {offset: 0}); + src.connect(context.destination); + + // An array of tests to be done. Each entry specifies the event + // type and the event time. The events are inserted in the order + // given (in |values|), and the second event should be inserted + // after the first one, as required by the spec. + let testCases = [ + { + event: 'setValueAtTime', + frame: RENDER_QUANTUM_FRAMES, + values: [99, 1], + outputTestFrame: RENDER_QUANTUM_FRAMES, + expectedOutputValue: 1 + }, + { + event: 'linearRampToValueAtTime', + frame: 2 * RENDER_QUANTUM_FRAMES, + values: [99, 2], + outputTestFrame: 2 * RENDER_QUANTUM_FRAMES, + expectedOutputValue: 2 + }, + { + event: 'exponentialRampToValueAtTime', + frame: 3 * RENDER_QUANTUM_FRAMES, + values: [99, 3], + outputTestFrame: 3 * RENDER_QUANTUM_FRAMES, + expectedOutputValue: 3 + }, + { + event: 'setValueCurveAtTime', + frame: 3 * RENDER_QUANTUM_FRAMES, + values: [[3, 4]], + extraArgs: RENDER_QUANTUM_FRAMES / context.sampleRate, + outputTestFrame: 4 * RENDER_QUANTUM_FRAMES, + expectedOutputValue: 4 + }, + { + event: 'setValueAtTime', + frame: 5 * RENDER_QUANTUM_FRAMES - 1, + values: [99, 1, 5], + outputTestFrame: 5 * RENDER_QUANTUM_FRAMES, + expectedOutputValue: 5 + } + ]; + + testCases.forEach(entry => { + entry.values.forEach(value => { + let eventTime = entry.frame / context.sampleRate; + let message = eventToString( + entry.event, value, eventTime, entry.extraArgs); + // This is mostly to print out the event that is getting + // inserted. It should never ever throw. + should(() => { + src.offset[entry.event](value, eventTime, entry.extraArgs); + }, message).notThrow(); + }); + }); + + src.start(); + + context.startRendering() + .then(audioBuffer => { + let audio = audioBuffer.getChannelData(0); + + // Look through the test cases to figure out what the correct + // output values should be. + testCases.forEach(entry => { + let expected = entry.expectedOutputValue; + let frame = entry.outputTestFrame; + let time = frame / context.sampleRate; + should( + audio[frame], `Output at frame ${frame} (time ${time})`) + .beEqualTo(expected); + }); + }) + .then(() => task.done()); + }); + + audit.define( + { + label: 'Linear + Expo', + description: 'Different events at same time' + }, + (task, should) => { + // Should be a linear ramp up to the event time, and after a + // constant value because the exponential ramp has ended. + let testCase = [ + {event: 'linearRampToValueAtTime', value: 2, relError: 0}, + {event: 'setValueAtTime', value: 99}, + {event: 'exponentialRampToValueAtTime', value: 3}, + ]; + let eventFrame = 2 * RENDER_QUANTUM_FRAMES; + let prefix = 'Linear+Expo: '; + + testEventInsertion(prefix, should, eventFrame, testCase) + .then(expectConstant(prefix, should, eventFrame, testCase)) + .then(() => task.done()); + }); + + audit.define( + { + label: 'Expo + Linear', + description: 'Different events at same time', + }, + (task, should) => { + // Should be an exponential ramp up to the event time, and after a + // constant value because the linear ramp has ended. + let testCase = [ + { + event: 'exponentialRampToValueAtTime', + value: 3, + relError: 4.2533e-6 + }, + {event: 'setValueAtTime', value: 99}, + {event: 'linearRampToValueAtTime', value: 2}, + ]; + let eventFrame = 2 * RENDER_QUANTUM_FRAMES; + let prefix = 'Expo+Linear: '; + + testEventInsertion(prefix, should, eventFrame, testCase) + .then(expectConstant(prefix, should, eventFrame, testCase)) + .then(() => task.done()); + }); + + audit.define( + { + label: 'Linear + SetTarget', + description: 'Different events at same time', + }, + (task, should) => { + // Should be a linear ramp up to the event time, and then a + // decaying value. + let testCase = [ + {event: 'linearRampToValueAtTime', value: 3, relError: 0}, + {event: 'setValueAtTime', value: 100}, + {event: 'setTargetAtTime', value: 0, extraArgs: 0.1}, + ]; + let eventFrame = 2 * RENDER_QUANTUM_FRAMES; + let prefix = 'Linear+SetTarget: '; + + testEventInsertion(prefix, should, eventFrame, testCase) + .then(audioBuffer => { + let audio = audioBuffer.getChannelData(0); + let prefix = 'Linear+SetTarget: '; + let eventTime = eventFrame / sampleRate; + let expectedValue = methodMap[testCase[0].event]( + (eventFrame - 1) / sampleRate, 1, 0, testCase[0].value, + eventTime); + should( + audio[eventFrame - 1], + prefix + + `At time ${ + (eventFrame - 1) / sampleRate + } (frame ${eventFrame - 1}) output`) + .beCloseTo( + expectedValue, + {threshold: testCase[0].relError || 0}); + + // The setValue should have taken effect + should( + audio[eventFrame], + prefix + + `At time ${eventTime} (frame ${eventFrame}) output`) + .beEqualTo(testCase[1].value); + + // The final event is setTarget. Compute the expected output. + let actual = audio.slice(eventFrame); + let expected = new Float32Array(actual.length); + for (let k = 0; k < expected.length; ++k) { + let t = (eventFrame + k) / sampleRate; + expected[k] = audioParamSetTarget( + t, testCase[1].value, eventTime, testCase[2].value, + testCase[2].extraArgs); + } + should( + actual, + prefix + + `At time ${eventTime} (frame ${ + eventFrame + }) and later`) + .beCloseToArray(expected, {relativeThreshold: 2.6694e-7}); + }) + .then(() => task.done()); + }); + + audit.define( + { + label: 'Multiple linear ramps at the same time', + description: 'Verify output' + }, + (task, should) => { + testMultipleSameEvents(should, { + method: 'linearRampToValueAtTime', + prefix: 'Multiple linear ramps: ', + threshold: 0 + }).then(() => task.done()); + }); + + audit.define( + { + label: 'Multiple exponential ramps at the same time', + description: 'Verify output' + }, + (task, should) => { + testMultipleSameEvents(should, { + method: 'exponentialRampToValueAtTime', + prefix: 'Multiple exponential ramps: ', + threshold: 5.3924e-7 + }).then(() => task.done()); + }); + + audit.run(); + + // Takes a list of |testCases| consisting of automation methods and + // schedules them to occur at |eventFrame|. |prefix| is a prefix for + // messages produced by |should|. + // + // Each item in |testCases| is a dictionary with members: + // event - the name of automation method to be inserted, + // value - the value for the event, + // extraArgs - extra arguments if the event needs more than the value + // and time (such as setTargetAtTime). + function testEventInsertion(prefix, should, eventFrame, testCases) { + let context = new OfflineAudioContext( + {length: 4 * RENDER_QUANTUM_FRAMES, sampleRate: sampleRate}); + + // The source node to use. Automations will be scheduled here. + let src = new ConstantSourceNode(context, {offset: 0}); + src.connect(context.destination); + + // Initialize value to 1 at the beginning. + src.offset.setValueAtTime(1, 0); + + // Test automations have this event time. + let eventTime = eventFrame / context.sampleRate; + + // Sanity check that context is long enough for the test + should( + eventFrame < context.length, + prefix + 'Context length is long enough for the test') + .beTrue(); + + // Automations to be tested. The first event should be the actual + // output up to the event time. The last event should be the final + // output from the event time and onwards. + testCases.forEach(entry => { + should( + () => { + src.offset[entry.event]( + entry.value, eventTime, entry.extraArgs); + }, + prefix + + eventToString( + entry.event, entry.value, eventTime, entry.extraArgs)) + .notThrow(); + }); + + src.start(); + + return context.startRendering(); + } + + // Verify output of test where the final value of the automation is + // expected to be constant. + function expectConstant(prefix, should, eventFrame, testCases) { + return audioBuffer => { + let audio = audioBuffer.getChannelData(0); + + let eventTime = eventFrame / sampleRate; + + // Compute the expected value of the first automation one frame before + // the event time. This is a quick check that the correct automation + // was done. + let expectedValue = methodMap[testCases[0].event]( + (eventFrame - 1) / sampleRate, 1, 0, testCases[0].value, + eventTime); + should( + audio[eventFrame - 1], + prefix + + `At time ${ + (eventFrame - 1) / sampleRate + } (frame ${eventFrame - 1}) output`) + .beCloseTo(expectedValue, {threshold: testCases[0].relError}); + + // The last event scheduled is expected to set the value for all + // future times. Verify that the output has the expected value. + should( + audio.slice(eventFrame), + prefix + + `At time ${eventTime} (frame ${ + eventFrame + }) and later, output`) + .beConstantValueOf(testCases[testCases.length - 1].value); + }; + } + + // Test output when two events of the same time are scheduled at the same + // time. + function testMultipleSameEvents(should, options) { + let {method, prefix, threshold} = options; + + // Context for testing. + let context = + new OfflineAudioContext({length: 16384, sampleRate: sampleRate}); + + let src = new ConstantSourceNode(context); + src.connect(context.destination); + + let initialValue = 1; + + // Informative print + should(() => { + src.offset.setValueAtTime(initialValue, 0); + }, prefix + `setValueAtTime(${initialValue}, 0)`).notThrow(); + + let frame = 64; + let time = frame / context.sampleRate; + let values = [2, 7, 10]; + + // Schedule two events of the same type at the same time, but with + // different values. + + values.forEach(value => { + // Informative prints to show what we're doing in this test. + should( + () => { + src.offset[method](value, time); + }, + prefix + + eventToString( + method, + value, + time, + )) + .notThrow(); + }) + + src.start(); + + return context.startRendering().then(audioBuffer => { + let actual = audioBuffer.getChannelData(0); + + // The output should be a ramp from time 0 to the event time. But we + // only verify the value just before the event time, which should be + // fairly close to values[0]. (But compute the actual expected value + // to be sure.) + let expected = methodMap[method]( + (frame - 1) / context.sampleRate, initialValue, 0, values[0], + time); + should(actual[frame - 1], prefix + `Output at frame ${frame - 1}`) + .beCloseTo(expected, {threshold: threshold, precision: 3}); + + // Any other values shouldn't show up in the output. Only the value + // from last event should appear. We only check the value at the + // event time. + should( + actual[frame], prefix + `Output at frame ${frame} (${time} sec)`) + .beEqualTo(values[values.length - 1]); + }); + } + + // Convert an automation method to a string for printing. + function eventToString(method, value, time, extras) { + let string = method + '('; + string += (value instanceof Array) ? `[${value}]` : value; + string += ', ' + time; + if (extras) { + string += ', ' + extras; + } + string += ')'; + return string; + } + + // Map between the automation method name and a function that computes the + // output value of the automation method. + const methodMap = { + linearRampToValueAtTime: audioParamLinearRamp, + exponentialRampToValueAtTime: audioParamExponentialRamp, + setValueAtTime: (t, v) => v + }; + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/exponentialRamp-special-cases.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/exponentialRamp-special-cases.html new file mode 100644 index 0000000000..d197809821 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/exponentialRamp-special-cases.html @@ -0,0 +1,58 @@ +<!DOCTYPE html> +<title>Test exponentialRampToValueAtTime() special cases</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> +promise_test(async function() { + const bufferSize = 5; + const sampleRate = 16384; + const startSample = 3; + const offset0 = 2.; + const offset1 = -3.; + const context = new OfflineAudioContext(1, bufferSize, sampleRate); + + const source = new ConstantSourceNode(context); + source.start(); + // Explicit event to work around + // https://bugzilla.mozilla.org/show_bug.cgi?id=1265393 + source.offset.setValueAtTime(offset0, 0.); + source.offset.exponentialRampToValueAtTime(offset1, startSample/sampleRate); + source.connect(context.destination); + + const buffer = await context.startRendering(); + assert_equals(buffer.length, bufferSize, "output buffer length"); + const output = buffer.getChannelData(0); + for (let i = 0; i < startSample; ++i) { + assert_equals(output[i], offset0, "initial offset at sample " + i); + } + for (let i = startSample; i < bufferSize; ++i) { + assert_equals(output[i], offset1, "scheduled value at sample " + i); + } +}, "v0 and v1 have opposite signs"); + +promise_test(async function() { + const bufferSize = 4; + const sampleRate = 16384; + const startSample = 2; + const offset = -2.; + const context = new OfflineAudioContext(1, bufferSize, sampleRate); + + const source = new ConstantSourceNode(context); + source.start(); + // Explicit event to work around + // https://bugzilla.mozilla.org/show_bug.cgi?id=1265393 + source.offset.setValueAtTime(0, 0.); + source.offset.exponentialRampToValueAtTime(offset, startSample/sampleRate); + source.connect(context.destination); + + const buffer = await context.startRendering(); + assert_equals(buffer.length, bufferSize, "output buffer length"); + const output = buffer.getChannelData(0); + for (let i = 0; i < startSample; ++i) { + assert_equals(output[i], 0., "initial offset at sample " + i); + } + for (let i = startSample; i < bufferSize; ++i) { + assert_equals(output[i], offset, "scheduled value at sample " + i); + } +}, "v0 is zero"); +</script> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audiobuffersource-connections.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audiobuffersource-connections.html new file mode 100644 index 0000000000..0b94bd70f9 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audiobuffersource-connections.html @@ -0,0 +1,164 @@ +<!doctype html> +<html> + <head> + <title>k-rate AudioParams with inputs for AudioBufferSourceNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // Fairly abitrary sampleRate and somewhat duration + const sampleRate = 8000; + const testDuration = 0.25; + + [['playbackRate', [1, 0], [2, testDuration]], + ['detune', [-1200, 0], [1200, testDuration]]] + .forEach(param => { + audit.define( + {label: param[0], description: `AudioBufferSource ${param[0]}`}, + async (task, should) => { + await doTest(should, { + prefix: task.label, + paramName: param[0], + startValue: param[1], + endValue: param[2] + }); + task.done(); + }); + }); + + audit.run(); + + async function doTest(should, options) { + // Test k-rate automation of AudioBufferSourceNode with connected + // input. + // + // A reference source node is created with an automation on the + // selected AudioParam. For simplicity, we just use a linear ramp from + // the minValue to the maxValue of the AudioParam. + // + // The test node has an input signal connected to the AudioParam. This + // input signal is created to match the automation on the reference + // node. + // + // Finally, the output from the two nodes must be identical if k-rate + // inputs are working correctly. + // + // Options parameter is a dictionary with the following required + // members: + // prefix - prefix to use for the messages. + // paramName - Name of the AudioParam to be tested + + let {prefix, paramName, startValue, endValue} = options; + + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + // Linear ramp to use for the buffer sources + let ramp = createLinearRampBuffer(context, context.length); + + // Create the reference and test nodes. + let refNode; + let tstNode; + + const nodeOptions = {buffer: ramp}; + + should( + () => refNode = new AudioBufferSourceNode(context, nodeOptions), + `${prefix}: refNode = new AudioBufferSourceNode(context, ${ + JSON.stringify(nodeOptions)})`) + .notThrow(); + + should( + () => tstNode = new AudioBufferSourceNode(context, nodeOptions), + `${prefix}: tstNode = new AudioBufferSourceNode(context, ${ + JSON.stringify(nodeOptions)})`) + .notThrow(); + + + // Automate the AudioParam of the reference node with a linear ramp + should( + () => refNode[paramName].setValueAtTime(...startValue), + `${prefix}: refNode[${paramName}].setValueAtTime(${ + startValue[0]}, ${startValue[1]})`) + .notThrow(); + + should( + () => refNode[paramName].linearRampToValueAtTime(...endValue), + `${prefix}: refNode[${paramName}].linearRampToValueAtTime(${ + endValue[0]}, ${endValue[1]})`) + .notThrow(); + + + // Create the input node and automate it so that it's output when added + // to the intrinsic value of the AudioParam we get the same values as + // the automations on the reference node. + + // Compute the start and end values based on the defaultValue of the + // param and the desired startValue and endValue. The input is added to + // the intrinsic value of the AudioParam, so we need to account for + // that. + + let mod; + should( + () => mod = new ConstantSourceNode(context, {offset: 0}), + `${prefix}: mod = new ConstantSourceNode(context, {offset: 0})`) + .notThrow(); + + let modStart = startValue[0] - refNode[paramName].defaultValue; + let modEnd = endValue[0] - refNode[paramName].defaultValue; + should( + () => mod.offset.setValueAtTime(modStart, startValue[1]), + `${prefix}: mod.offset.setValueAtTime(${modStart}, ${ + startValue[1]})`) + .notThrow(); + should( + () => mod.offset.linearRampToValueAtTime(modEnd, endValue[1]), + `${prefix}: mod.offset.linearRampToValueAtTime(${modEnd}, ${ + endValue[1]})`) + .notThrow(); + + // Connect up everything. + should( + () => mod.connect(tstNode[paramName]), + `${prefix}: mod.connect(tstNode[${paramName}])`) + .notThrow(); + + refNode.connect(merger, 0, 0); + tstNode.connect(merger, 0, 1); + + // Go! + refNode.start(); + tstNode.start(); + mod.start(); + + const buffer = await context.startRendering(); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + + // Quick sanity check that output isn't zero. This means we messed up + // the connections or automations or the buffer source. + should(expected, `Expected k-rate ${paramName} AudioParam with input`) + .notBeConstantValueOf(0); + should(actual, `Actual k-rate ${paramName} AudioParam with input`) + .notBeConstantValueOf(0); + + // The expected and actual results must be EXACTLY the same. + should(actual, `k-rate ${paramName} AudioParam with input`) + .beCloseToArray(expected, {absoluteThreshold: 0}); + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audioworklet-connections.https.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audioworklet-connections.https.html new file mode 100644 index 0000000000..4d2eb40d55 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audioworklet-connections.https.html @@ -0,0 +1,77 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParams with inputs for AudioWorkletNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + + <body> + <script> + const audit = Audit.createTaskRunner(); + + // Use the worklet gain node to test k-rate parameters. + const filePath = + '../the-audioworklet-interface/processors/gain-processor.js'; + + // Context for testing + let context; + + audit.define('Create Test Worklet', (task, should) => { + // Arbitrary sample rate and duration. + const sampleRate = 8000; + + // Only new a few render quanta to verify things are working. + const testDuration = 4 * 128 / sampleRate; + + context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + should( + context.audioWorklet.addModule(filePath), + 'Construction of AudioWorklet') + .beResolved() + .then(() => task.done()); + }); + + audit.define('AudioWorklet k-rate AudioParam', async (task, should) => { + let src = new ConstantSourceNode(context); + let kRateNode = new AudioWorkletNode(context, 'gain'); + src.connect(kRateNode).connect(context.destination); + + let kRateParam = kRateNode.parameters.get('gain'); + kRateParam.automationRate = 'k-rate'; + kRateParam.value = 0; + + let mod = new ConstantSourceNode(context); + mod.offset.setValueAtTime(0, 0); + mod.offset.linearRampToValueAtTime( + 10, context.length / context.sampleRate); + mod.connect(kRateParam); + + mod.start(); + src.start(); + + const audioBuffer = await context.startRendering(); + let output = audioBuffer.getChannelData(0); + + // Verify that the output isn't constantly zero. + should(output, 'output').notBeConstantValueOf(0); + // Verify that the output from the worklet is step-wise + // constant. + for (let k = 0; k < output.length; k += 128) { + should(output.slice(k, k + 128), ` k-rate output [${k}: ${k + 127}]`) + .beConstantValueOf(output[k]); + } + task.done(); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audioworklet.https.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audioworklet.https.html new file mode 100644 index 0000000000..e891da6da2 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-audioworklet.https.html @@ -0,0 +1,79 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParam of AudioWorkletNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + + <body> + <script> + const audit = Audit.createTaskRunner(); + + // Use the worklet gain node to test k-rate parameters. + const filePath = + '../the-audioworklet-interface/processors/gain-processor.js'; + + // Context for testing + let context; + + audit.define('Create Test Worklet', (task, should) => { + + // Arbitrary sample rate and duration. + const sampleRate = 8000; + + // Only new a few render quanta to verify things are working. + const testDuration = 4 * 128 / sampleRate; + + context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + should( + context.audioWorklet.addModule(filePath), + 'Construction of AudioWorklet') + .beResolved() + .then(() => task.done()); + }); + + audit.define('AudioWorklet k-rate AudioParam', (task, should) => { + let src = new ConstantSourceNode(context); + + let kRateNode = new AudioWorkletNode(context, 'gain'); + + src.connect(kRateNode).connect(context.destination); + + let kRateParam = kRateNode.parameters.get('gain'); + kRateParam.automationRate = 'k-rate'; + + // Automate the gain + kRateParam.setValueAtTime(0, 0); + kRateParam.linearRampToValueAtTime( + 10, context.length / context.sampleRate); + + src.start(); + + context.startRendering() + .then(audioBuffer => { + let output = audioBuffer.getChannelData(0); + + // Verify that the output from the worklet is step-wise + // constant. + for (let k = 0; k < output.length; k += 128) { + should( + output.slice(k, k + 128), + ` k-rate output [${k}: ${k + 127}]`) + .beConstantValueOf(output[k]); + } + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-biquad-connection.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-biquad-connection.html new file mode 100644 index 0000000000..ab9df8740f --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-biquad-connection.html @@ -0,0 +1,456 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParam Inputs for BiquadFilterNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + + <body> + <script> + // sampleRate and duration are fairly arbitrary. We use low values to + // limit the complexity of the test. + let sampleRate = 8192; + let testDuration = 0.5; + + let audit = Audit.createTaskRunner(); + + audit.define( + {label: 'Frequency AudioParam', description: 'k-rate input works'}, + async (task, should) => { + // Test frequency AudioParam using a lowpass filter whose bandwidth + // is initially larger than the oscillator frequency. Then automate + // the frequency to 0 so that the output of the filter is 0 (because + // the cutoff is 0). + let oscFrequency = 440; + + let options = { + sampleRate: sampleRate, + paramName: 'frequency', + oscFrequency: oscFrequency, + testDuration: testDuration, + filterOptions: {type: 'lowpass', frequency: 0}, + autoStart: + {method: 'setValueAtTime', args: [2 * oscFrequency, 0]}, + autoEnd: { + method: 'linearRampToValueAtTime', + args: [0, testDuration / 4] + } + }; + + let buffer = await doTest(should, options); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + let halfLength = expected.length / 2; + + // Sanity check. The expected output should not be zero for + // the first half, but should be zero for the second half + // (because the filter bandwidth is exactly 0). + const prefix = 'Expected k-rate frequency with automation'; + + should( + expected.slice(0, halfLength), + `${prefix} output[0:${halfLength - 1}]`) + .notBeConstantValueOf(0); + should( + expected.slice(expected.length), + `${prefix} output[${halfLength}:]`) + .beConstantValueOf(0); + + // Outputs should be the same. Break the message into two + // parts so we can see the expected outputs. + checkForSameOutput(should, options.paramName, actual, expected); + + task.done(); + }); + + audit.define( + {label: 'Q AudioParam', description: 'k-rate input works'}, + async (task, should) => { + // Test Q AudioParam. Use a bandpass filter whose center frequency + // is fairly far from the oscillator frequency. Then start with a Q + // value of 0 (so everything goes through) and then increase Q to + // some large value such that the out-of-band signals are basically + // cutoff. + let frequency = 440; + let oscFrequency = 4 * frequency; + + let options = { + sampleRate: sampleRate, + oscFrequency: oscFrequency, + testDuration: testDuration, + paramName: 'Q', + filterOptions: {type: 'bandpass', frequency: frequency, Q: 0}, + autoStart: {method: 'setValueAtTime', args: [0, 0]}, + autoEnd: { + method: 'linearRampToValueAtTime', + args: [100, testDuration / 4] + } + }; + + const buffer = await doTest(should, options); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + + // Outputs should be the same + checkForSameOutput(should, options.paramName, actual, expected); + + task.done(); + }); + + audit.define( + {label: 'Gain AudioParam', description: 'k-rate input works'}, + async (task, should) => { + // Test gain AudioParam. Use a peaking filter with a large Q so the + // peak is narrow with a center frequency the same as the oscillator + // frequency. Start with a gain of 0 so everything goes through and + // then ramp the gain down to -100 so that the oscillator is + // filtered out. + let oscFrequency = 4 * 440; + + let options = { + sampleRate: sampleRate, + oscFrequency: oscFrequency, + testDuration: testDuration, + paramName: 'gain', + filterOptions: + {type: 'peaking', frequency: oscFrequency, Q: 100, gain: 0}, + autoStart: {method: 'setValueAtTime', args: [0, 0]}, + autoEnd: { + method: 'linearRampToValueAtTime', + args: [-100, testDuration / 4] + } + }; + + const buffer = await doTest(should, options); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + + // Outputs should be the same + checkForSameOutput(should, options.paramName, actual, expected); + + task.done(); + }); + + audit.define( + {label: 'Detune AudioParam', description: 'k-rate input works'}, + async (task, should) => { + // Test detune AudioParam. The basic idea is the same as the + // frequency test above, but insteda of automating the frequency, we + // automate the detune value so that initially the filter cutuff is + // unchanged and then changing the detune until the cutoff goes to 1 + // Hz, which would cause the oscillator to be filtered out. + let oscFrequency = 440; + let filterFrequency = 5 * oscFrequency; + + // For a detune value d, the computed frequency, fc, of the filter + // is fc = f*2^(d/1200), where f is the frequency of the filter. Or + // d = 1200*log2(fc/f). Compute the detune value to produce a final + // cutoff frequency of 1 Hz. + let detuneEnd = 1200 * Math.log2(1 / filterFrequency); + + let options = { + sampleRate: sampleRate, + oscFrequency: oscFrequency, + testDuration: testDuration, + paramName: 'detune', + filterOptions: { + type: 'lowpass', + frequency: filterFrequency, + detune: 0, + gain: 0 + }, + autoStart: {method: 'setValueAtTime', args: [0, 0]}, + autoEnd: { + method: 'linearRampToValueAtTime', + args: [detuneEnd, testDuration / 4] + } + }; + + const buffer = await doTest(should, options); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + + // Outputs should be the same + checkForSameOutput(should, options.paramName, actual, expected); + + task.done(); + }); + + audit.define('All k-rate inputs', async (task, should) => { + // Test the case where all AudioParams are set to k-rate with an input + // to each AudioParam. Similar to the above tests except all the params + // are k-rate. + let testFrames = testDuration * sampleRate; + let context = new OfflineAudioContext( + {numberOfChannels: 2, sampleRate: sampleRate, length: testFrames}); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + let src = new OscillatorNode(context); + + // The peaking filter uses all four AudioParams, so this is the node to + // test. + let filterOptions = + {type: 'peaking', frequency: 0, detune: 0, gain: 0, Q: 0}; + let refNode; + should( + () => refNode = new BiquadFilterNode(context, filterOptions), + `Create: refNode = new BiquadFilterNode(context, ${ + JSON.stringify(filterOptions)})`) + .notThrow(); + + let tstNode; + should( + () => tstNode = new BiquadFilterNode(context, filterOptions), + `Create: tstNode = new BiquadFilterNode(context, ${ + JSON.stringify(filterOptions)})`) + .notThrow(); + ; + + // Make all the AudioParams k-rate. + ['frequency', 'Q', 'gain', 'detune'].forEach(param => { + should( + () => refNode[param].automationRate = 'k-rate', + `Set rate: refNode[${param}].automationRate = 'k-rate'`) + .notThrow(); + should( + () => tstNode[param].automationRate = 'k-rate', + `Set rate: tstNode[${param}].automationRate = 'k-rate'`) + .notThrow(); + }); + + // One input for each AudioParam. + let mod = {}; + ['frequency', 'Q', 'gain', 'detune'].forEach(param => { + should( + () => mod[param] = new ConstantSourceNode(context, {offset: 0}), + `Create: mod[${ + param}] = new ConstantSourceNode(context, {offset: 0})`) + .notThrow(); + ; + should( + () => mod[param].offset.automationRate = 'a-rate', + `Set rate: mod[${param}].offset.automationRate = 'a-rate'`) + .notThrow(); + }); + + // Set up automations for refNode. We want to start the filter with + // parameters that let the oscillator signal through more or less + // untouched. Then change the filter parameters to filter out the + // oscillator. What happens in between doesn't reall matter for this + // test. Hence, set the initial parameters with a center frequency well + // above the oscillator and a Q and gain of 0 to pass everthing. + [['frequency', [4 * src.frequency.value, 0]], ['Q', [0, 0]], + ['gain', [0, 0]], ['detune', [4 * 1200, 0]]] + .forEach(param => { + should( + () => refNode[param[0]].setValueAtTime(...param[1]), + `Automate 0: refNode.${param[0]}.setValueAtTime(${ + param[1][0]}, ${param[1][1]})`) + .notThrow(); + should( + () => mod[param[0]].offset.setValueAtTime(...param[1]), + `Automate 0: mod[${param[0]}].offset.setValueAtTime(${ + param[1][0]}, ${param[1][1]})`) + .notThrow(); + }); + + // Now move the filter frequency to the oscillator frequency with a high + // Q and very low gain to remove the oscillator signal. + [['frequency', [src.frequency.value, testDuration / 4]], + ['Q', [40, testDuration / 4]], ['gain', [-100, testDuration / 4]], [ + 'detune', [0, testDuration / 4] + ]].forEach(param => { + should( + () => refNode[param[0]].linearRampToValueAtTime(...param[1]), + `Automate 1: refNode[${param[0]}].linearRampToValueAtTime(${ + param[1][0]}, ${param[1][1]})`) + .notThrow(); + should( + () => mod[param[0]].offset.linearRampToValueAtTime(...param[1]), + `Automate 1: mod[${param[0]}].offset.linearRampToValueAtTime(${ + param[1][0]}, ${param[1][1]})`) + .notThrow(); + }); + + // Connect everything + src.connect(refNode).connect(merger, 0, 0); + src.connect(tstNode).connect(merger, 0, 1); + + src.start(); + for (let param in mod) { + should( + () => mod[param].connect(tstNode[param]), + `Connect: mod[${param}].connect(tstNode.${param})`) + .notThrow(); + } + + for (let param in mod) { + should(() => mod[param].start(), `Start: mod[${param}].start()`) + .notThrow(); + } + + const buffer = await context.startRendering(); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + + // Sanity check that the output isn't all zeroes. + should(actual, 'All k-rate AudioParams').notBeConstantValueOf(0); + should(actual, 'All k-rate AudioParams').beCloseToArray(expected, { + absoluteThreshold: 0 + }); + + task.done(); + }); + + audit.run(); + + async function doTest(should, options) { + // Test that a k-rate AudioParam with an input reads the input value and + // is actually k-rate. + // + // A refNode is created with an automation timeline. This is the + // expected output. + // + // The testNode is the same, but it has a node connected to the k-rate + // AudioParam. The input to the node is an a-rate ConstantSourceNode + // whose output is automated in exactly the same was as the refNode. If + // the test passes, the outputs of the two nodes MUST match exactly. + + // The options argument MUST contain the following members: + // sampleRate - the sample rate for the offline context + // testDuration - duration of the offline context, in sec. + // paramName - the name of the AudioParam to be tested + // oscFrequency - frequency of oscillator source + // filterOptions - options used to construct the BiquadFilterNode + // autoStart - information about how to start the automation + // autoEnd - information about how to end the automation + // + // The autoStart and autoEnd options are themselves dictionaries with + // the following required members: + // method - name of the automation method to be applied + // args - array of arguments to be supplied to the method. + let { + sampleRate, + paramName, + oscFrequency, + autoStart, + autoEnd, + testDuration, + filterOptions + } = options; + + let testFrames = testDuration * sampleRate; + let context = new OfflineAudioContext( + {numberOfChannels: 2, sampleRate: sampleRate, length: testFrames}); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + // Any calls to |should| are meant to be informational so we can see + // what nodes are created and the automations used. + let src; + + // Create the source. + should( + () => { + src = new OscillatorNode(context, {frequency: oscFrequency}); + }, + `${paramName}: new OscillatorNode(context, {frequency: ${ + oscFrequency}})`) + .notThrow(); + + // The refNode automates the AudioParam with k-rate automations, no + // inputs. + let refNode; + should( + () => { + refNode = new BiquadFilterNode(context, filterOptions); + }, + `Reference BiquadFilterNode(c, ${JSON.stringify(filterOptions)})`) + .notThrow(); + + refNode[paramName].automationRate = 'k-rate'; + + // Set up automations for the reference node. + should( + () => { + refNode[paramName][autoStart.method](...autoStart.args); + }, + `refNode.${paramName}.${autoStart.method}(${autoStart.args})`) + .notThrow(); + should( + () => { + refNode[paramName][autoEnd.method](...autoEnd.args); + }, + `refNode.${paramName}.${autoEnd.method}.(${autoEnd.args})`) + .notThrow(); + + // The tstNode does the same automation, but it comes from the input + // connected to the AudioParam. + let tstNode; + should( + () => { + tstNode = new BiquadFilterNode(context, filterOptions); + }, + `Test BiquadFilterNode(context, ${JSON.stringify(filterOptions)})`) + .notThrow(); + tstNode[paramName].automationRate = 'k-rate'; + + // Create the input to the AudioParam of the test node. The output of + // this node MUST have the same set of automations as the reference + // node, and MUST be a-rate to make sure we're handling k-rate inputs + // correctly. + let mod = new ConstantSourceNode(context); + mod.offset.automationRate = 'a-rate'; + should( + () => { + mod.offset[autoStart.method](...autoStart.args); + }, + `${paramName}: mod.offset.${autoStart.method}(${autoStart.args})`) + .notThrow(); + should( + () => { + mod.offset[autoEnd.method](...autoEnd.args); + }, + `${paramName}: mod.offset.${autoEnd.method}(${autoEnd.args})`) + .notThrow(); + + // Create graph + mod.connect(tstNode[paramName]); + src.connect(refNode).connect(merger, 0, 0); + src.connect(tstNode).connect(merger, 0, 1); + + // Run! + src.start(); + mod.start(); + return context.startRendering(); + } + + function checkForSameOutput(should, paramName, actual, expected) { + let halfLength = expected.length / 2; + + // Outputs should be the same. We break the check into halves so we can + // see the expected outputs. Mostly for a simple visual check that the + // output from the second half is small because the tests generally try + // to filter out the signal so that the last half of the output is + // small. + should( + actual.slice(0, halfLength), + `k-rate ${paramName} with input: output[0,${halfLength}]`) + .beCloseToArray( + expected.slice(0, halfLength), {absoluteThreshold: 0}); + should( + actual.slice(halfLength), + `k-rate ${paramName} with input: output[${halfLength}:]`) + .beCloseToArray(expected.slice(halfLength), {absoluteThreshold: 0}); + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-biquad.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-biquad.html new file mode 100644 index 0000000000..85ae4f175f --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-biquad.html @@ -0,0 +1,111 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParams of BiquadFilterNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="automation-rate-testing.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define( + {task: 'BiquadFilter-0', label: 'Biquad k-rate AudioParams (all)'}, + (task, should) => { + // Arbitrary sample rate and duration. + let sampleRate = 8000; + let testDuration = 1; + let context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + doTest(context, should, { + nodeName: 'BiquadFilterNode', + nodeOptions: {type: 'lowpass'}, + prefix: 'All k-rate params', + // Set all AudioParams to k-rate + rateSettings: [ + {name: 'Q', value: 'k-rate'}, + {name: 'detune', value: 'k-rate'}, + {name: 'frequency', value: 'k-rate'}, + {name: 'gain', value: 'k-rate'}, + ], + // Automate just the frequency + automations: [{ + name: 'frequency', + methods: [ + {name: 'setValueAtTime', options: [350, 0]}, { + name: 'linearRampToValueAtTime', + options: [0, testDuration] + } + ] + }] + }).then(() => task.done()); + }); + + // Define a test where we verify that a k-rate audio param produces + // different results from an a-rate audio param for each of the audio + // params of a biquad. + // + // Each entry gives the name of the AudioParam, an initial value to be + // used with setValueAtTime, and a final value to be used with + // linearRampToValueAtTime. (See |doTest| for details as well.) + + [{name: 'Q', + initial: 1, + final: 10 + }, + {name: 'detune', + initial: 0, + final: 1200 + }, + {name: 'frequency', + initial: 350, + final: 0 + }, + {name: 'gain', + initial: 10, + final: 0 + }].forEach(paramProperty => { + audit.define('Biquad k-rate ' + paramProperty.name, (task, should) => { + // Arbitrary sample rate and duration. + let sampleRate = 8000; + let testDuration = 1; + let context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + doTest(context, should, { + nodeName: 'BiquadFilterNode', + nodeOptions: {type: 'peaking', Q: 1, gain: 10}, + prefix: `k-rate ${paramProperty.name}`, + // Just set the frequency to k-rate + rateSettings: [ + {name: paramProperty.name, value: 'k-rate'}, + ], + // Automate just the given AudioParam + automations: [{ + name: paramProperty.name, + methods: [ + {name: 'setValueAtTime', options: [paramProperty.initial, 0]}, { + name: 'linearRampToValueAtTime', + options: [paramProperty.final, testDuration] + } + ] + }] + }).then(() => task.done()); + }); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-connections.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-connections.html new file mode 100644 index 0000000000..730f03e561 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-connections.html @@ -0,0 +1,139 @@ +<!doctype html> +<html> + <head> + <title>k-rate AudioParams with Inputs</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // Must be power of two to eliminate round-off + const sampleRate = 8192; + + // Arbitrary duration that doesn't need to be too long to verify k-rate + // automations. Probably should be at least a few render quanta. + const testDuration = 8 * RENDER_QUANTUM_FRAMES / sampleRate; + + // Test k-rate GainNode.gain is k-rate + audit.define( + {label: 'Gain', description: 'k-rate GainNode.gain'}, + (task, should) => { + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + let src = new ConstantSourceNode(context); + + createTestSubGraph(context, src, merger, 'GainNode', 'gain'); + + src.start(); + context.startRendering() + .then(buffer => { + let actual = buffer.getChannelData(0); + let expected = buffer.getChannelData(1); + + for (let k = 0; k < actual.length; + k += RENDER_QUANTUM_FRAMES) { + should( + actual.slice(k, k + RENDER_QUANTUM_FRAMES), + `gain[${k}:${k + RENDER_QUANTUM_FRAMES}]`) + .beConstantValueOf(expected[k]); + } + }) + .then(() => task.done()); + }); + + // Test k-rate StereoPannerNode.pan is k-rate + audit.define( + {label: 'StereoPanner', description: 'k-rate StereoPannerNode.pan'}, + (task, should) => { + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + let src = new ConstantSourceNode(context); + + createTestSubGraph( + context, src, merger, 'StereoPannerNode', 'pan', { + testModSetup: node => { + node.offset.setValueAtTime(-1, 0); + node.offset.linearRampToValueAtTime(1, testDuration); + } + }); + + src.start(); + context.startRendering() + .then(buffer => { + let actual = buffer.getChannelData(0); + let expected = buffer.getChannelData(1); + + for (let k = 0; k < actual.length; k += 128) { + should(actual.slice(k, k + 128), `pan[${k}:${k + 128}]`) + .beConstantValueOf(expected[k]); + } + }) + .then(() => task.done()); + }); + + audit.run(); + + function createTestSubGraph( + context, src, merger, nodeName, paramName, options) { + // The test node which has its AudioParam set up for k-rate autmoations. + let tstNode = new window[nodeName](context); + + if (options && options.setups) { + options.setups(tstNode); + } + tstNode[paramName].automationRate = 'k-rate'; + + // Modulating signal for the test node. Just a linear ramp. This is + // connected to the AudioParam of the tstNode. + let tstMod = new ConstantSourceNode(context); + if (options && options.testModSetup) { + options.testModSetup(tstMod); + } else { + tstMod.offset.linearRampToValueAtTime(context.length, testDuration); + } + + tstMod.connect(tstNode[paramName]); + src.connect(tstNode).connect(merger, 0, 0); + + // The ref node is the same type of node as the test node, but uses + // a-rate automation. However, the modulating signal is k-rate. This + // causes the input to the audio param to be constant over a render, + // which is basically the same as making the audio param be k-rate. + let refNode = new window[nodeName](context); + let refMod = new ConstantSourceNode(context); + refMod.offset.automationRate = 'k-rate'; + if (options && options.testModSetup) { + options.testModSetup(refMod); + } else { + refMod.offset.linearRampToValueAtTime(context.length, testDuration); + } + + refMod.connect(refNode[paramName]); + src.connect(refNode).connect(merger, 0, 1); + + tstMod.start(); + refMod.start(); + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-constant-source.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-constant-source.html new file mode 100644 index 0000000000..0bea5c91f8 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-constant-source.html @@ -0,0 +1,176 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParam of ConstantSourceNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="automation-rate-testing.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define('ConstantSource k-rate offset', (task, should) => { + // Arbitrary sample rate and duration. + let sampleRate = 8000; + + // Only new a few render quanta to verify things are working. + let testDuration = 4 * 128 / sampleRate; + + let context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + doTest(context, should, { + sourceNodeName: 'none', + verifyPieceWiseConstant: true, + nodeName: 'ConstantSourceNode', + prefix: 'k-rate offset', + rateSettings: [{name: 'offset', value: 'k-rate'}], + automations: [{ + name: 'offset', + methods: [ + {name: 'setValueAtTime', options: [0, 0]}, { + name: 'linearRampToValueAtTime', + options: [10, testDuration] + } + ] + }] + }).then(() => task.done()); + }); + + // Parameters for the For the following tests. + + // Must be power of two to eliminate round-off + const sampleRate8k = 8192; + + // Arbitrary duration that doesn't need to be too long to verify k-rate + // automations. Probably should be at least a few render quanta. + const testDuration = 8 * RENDER_QUANTUM_FRAMES / sampleRate8k; + + // Basic test that k-rate ConstantSourceNode.offset is k-rate. This is + // the basis for all of the following tests, so make sure it's right. + audit.define( + { + label: 'ConstantSourceNode.offset k-rate automation', + description: + 'Explicitly test ConstantSourceNode.offset k-rate automation is k-rate' + }, + (task, should) => { + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate8k, + length: testDuration * sampleRate8k + }); + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + // k-rate ConstantSource.offset using a linear ramp starting at 0 + // and incrementing by 1 for each frame. + let src = new ConstantSourceNode(context, {offset: 0}); + src.offset.automationRate = 'k-rate'; + + src.offset.setValueAtTime(0, 0); + src.offset.linearRampToValueAtTime(context.length, testDuration); + + src.connect(merger, 0, 0); + + src.start(); + + // a-rate ConstantSource using the same ramp as above. + let refSrc = new ConstantSourceNode(context, {offset: 0}); + + refSrc.offset.setValueAtTime(0, 0); + refSrc.offset.linearRampToValueAtTime(context.length, testDuration); + + refSrc.connect(merger, 0, 1); + + refSrc.start(); + + context.startRendering() + .then(buffer => { + let actual = buffer.getChannelData(0); + let expected = buffer.getChannelData(1); + + for (let k = 0; k < actual.length; + k += RENDER_QUANTUM_FRAMES) { + // Verify that the k-rate output is constant over the render + // and that it matches the value of the a-rate value at the + // beginning of the render. + should( + actual.slice(k, k + RENDER_QUANTUM_FRAMES), + `k-rate ConstantSource.offset: output[${k}:${ + k + RENDER_QUANTUM_FRAMES}]`) + .beConstantValueOf(expected[k]); + } + }) + .then(() => task.done()); + }); + + // This test verifies that a k-rate input to the ConstantSourceNode.offset + // works just as if we set the AudioParam to be k-rate. This is the basis + // of the following tests, so make sure it works. + audit.define( + { + label: 'ConstantSource.offset', + description: 'Verify k-rate automation matches k-rate input' + }, + (task, should) => { + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate8k, + length: testDuration * sampleRate8k + }); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + let tstSrc = new ConstantSourceNode(context); + let tstMod = new ConstantSourceNode(context); + tstSrc.offset.automationRate = 'k-rate'; + tstMod.offset.linearRampToValueAtTime(context.length, testDuration); + + tstMod.connect(tstSrc.offset) + tstSrc.connect(merger, 0, 0); + + let refSrc = new ConstantSourceNode(context); + let refMod = new ConstantSourceNode(context); + refMod.offset.linearRampToValueAtTime(context.length, testDuration); + refMod.offset.automationRate = 'k-rate'; + + refMod.connect(refSrc.offset); + refSrc.connect(merger, 0, 1); + + tstSrc.start(); + tstMod.start(); + refSrc.start(); + refMod.start(); + + context.startRendering() + .then(buffer => { + let actual = buffer.getChannelData(0); + let expected = buffer.getChannelData(1); + + for (let k = 0; k < context.length; + k += RENDER_QUANTUM_FRAMES) { + should( + actual.slice(k, k + RENDER_QUANTUM_FRAMES), + `ConstantSource.offset k-rate input: output[${k}:${ + k + RENDER_QUANTUM_FRAMES}]`) + .beConstantValueOf(expected[k]); + } + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-delay-connections.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-delay-connections.html new file mode 100644 index 0000000000..fcf66f2e3e --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-delay-connections.html @@ -0,0 +1,156 @@ +<!doctype html> +<html> + <head> + <title>k-rate AudioParams with inputs for DelayNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // Power-of-two to eliminate round-off in computing time and frames, but + // is otherwise arbitrary. + const sampleRate = 8192; + + // Arbitrary duration except it must be greater than or equal to 1. + const testDuration = 1.5; + + audit.define( + {label: 'delayTime', description: `DelayNode delayTime k-rate input`}, + async (task, should) => { + // Two channels: 0 = test result, 1 = expected result. + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + // Test the DelayNode by having a reference node (refNode) that uses + // k-rate automations of delayTime. The test node (testNode) sets + // delayTime to k-rate with a connected input that has the same + // automation vlaues as the reference node. The test passes if the + // output from each node is identical to each other. + + // Just some non-constant source. + let src = new OscillatorNode(context); + + // The end value and time for the linear ramp. These values are + // chosen so that the delay advances faster than real time. + let endValue = 1.125; + let endTime = 1; + + let refNode; + + should( + () => refNode = new DelayNode(context), + `refNode = new DelayNode(context)`) + .notThrow(); + + should( + () => refNode.delayTime.automationRate = 'k-rate', + `refNode.delayTime.automationRate = 'k-rate'`) + .notThrow(); + + should( + () => refNode.delayTime.setValueAtTime(0, 0), + `refNode.delayTime.setValueAtTime(0, 0)`) + .notThrow(); + + should( + () => refNode.delayTime.linearRampToValueAtTime( + endValue, endTime), + `refNode.delayTime.linearRampToValueAtTime(${endValue}, ${ + endTime})`) + .notThrow(); + + let testNode; + + should( + () => testNode = new DelayNode(context), + `testNode = new DelayNode(context)`) + .notThrow(); + + should( + () => testNode.delayTime.automationRate = 'k-rate', + `testNode.delayTime.automationRate = 'k-rate'`) + .notThrow(); + + let testMod; + + should( + () => testMod = new ConstantSourceNode(context), + `testMod = new ConstantSourceNode(context)`) + .notThrow(); + + should( + () => testMod.offset.setValueAtTime(0, 0), + `testMod.offset.setValueAtTime(0, 0)`) + .notThrow(); + + should( + () => testMod.offset.linearRampToValueAtTime(endValue, endTime), + `testMod.offset.linearRampToValueAtTime(${endValue}, ${ + endTime})`) + .notThrow(); + + should( + () => testMod.connect(testNode.delayTime), + `testMod.connect(testNode.delayTime)`) + .notThrow(); + + // Connect up everything and go! + src.connect(testNode).connect(merger, 0, 0); + src.connect(refNode).connect(merger, 0, 1); + + src.start(); + testMod.start(); + + const buffer = await context.startRendering(); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + + // Quick sanity check that output isn't zero. This means we messed + // up the connections or automations or the buffer source. + should(expected, `Expected k-rate delayTime AudioParam with input`) + .notBeConstantValueOf(0); + should(actual, `Actual k-rate delayTime AudioParam with input`) + .notBeConstantValueOf(0); + + // Quick sanity check. The amount of delay after one render is + // endValue * 128 / sampleRate. But after 1 render, time has + // advanced 128/sampleRate. Hence, the delay exceeds the time by + // (endValue - 1)*128/sampleRate sec or (endValue - 1)*128 frames. + // This means the output must be EXACTLY zero for this many frames + // in the second render. + let zeroFrames = (endValue - 1) * RENDER_QUANTUM_FRAMES; + should( + actual.slice( + RENDER_QUANTUM_FRAMES, RENDER_QUANTUM_FRAMES + zeroFrames), + `output[${RENDER_QUANTUM_FRAMES}, ${ + RENDER_QUANTUM_FRAMES + zeroFrames - 1}]`) + .beConstantValueOf(0); + should( + actual.slice( + RENDER_QUANTUM_FRAMES + zeroFrames, + 2 * RENDER_QUANTUM_FRAMES), + `output[${RENDER_QUANTUM_FRAMES + zeroFrames}, ${ + 2 * RENDER_QUANTUM_FRAMES - 1}]`) + .notBeConstantValueOf(0); + + // The expected and actual results must be EXACTLY the same. + should(actual, `k-rate delayTime AudioParam with input`) + .beCloseToArray(expected, {absoluteThreshold: 0}); + }); + + audit.run(); + </script> + </body> + </html>
\ No newline at end of file diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-delay.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-delay.html new file mode 100644 index 0000000000..5465c39430 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-delay.html @@ -0,0 +1,49 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParam of DelayNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="automation-rate-testing.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define('Test k-rate DelayNode', (task, should) => { + // Arbitrary sample rate and duration. + let sampleRate = 8000; + let testDuration = 1; + let context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + + doTest(context, should, { + nodeName: 'DelayNode', + nodeOptions: null, + prefix: 'DelayNode', + // Set all AudioParams to k-rate + rateSettings: [{name: 'delayTime', value: 'k-rate'}], + // Automate just the frequency + automations: [{ + name: 'delayTime', + methods: [ + {name: 'setValueAtTime', options: [0, 0]}, { + name: 'linearRampToValueAtTime', + options: [.5, testDuration] + } + ] + }] + }).then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-dynamics-compressor-connections.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-dynamics-compressor-connections.html new file mode 100644 index 0000000000..c1755cd155 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-dynamics-compressor-connections.html @@ -0,0 +1,145 @@ +<!doctype html> +<html> + <head> + <title>k-rate AudioParams with inputs for DynamicsCompressorNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // Fairly abitrary sampleRate and somewhat duration + const sampleRate = 48000; + const testDuration = 0.25; + + ['attack', 'knee', 'ratio', 'release', 'threshold'].forEach(param => { + audit.define( + {label: param, description: `Dynamics compressor ${param}`}, + async (task, should) => { + await doTest(should, {prefix: task.label, paramName: param}); + task.done(); + }); + }); + + audit.run(); + + async function doTest(should, options) { + // Test k-rate automation of DynamicsCompressorNode with connected + // input. + // + // A reference compressor node is created with an automation on the + // selected AudioParam. For simplicity, we just use a linear ramp from + // the minValue to the maxValue of the AudioParam. + // + // The test node has an input signal connected to the AudioParam. This + // input signal is created to match the automation on the reference + // node. + // + // Finally, the output from the two nodes must be identical if k-rate + // inputs are working correctly. + // + // Options parameter is a dictionary with the following required + // members: + // prefix - prefix to use for the messages. + // paramName - Name of the AudioParam to be tested + + let {prefix, paramName} = options; + + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + // Use an oscillator for the source. Pretty arbitrary parameters. + let src = + new OscillatorNode(context, {type: 'sawtooth', frequency: 440}); + + // Create the reference and test nodes. + let refNode; + let tstNode; + + should( + () => refNode = new DynamicsCompressorNode(context), + `${prefix}: refNode = new DynamicsCompressorNode(context)`) + .notThrow(); + + let tstOptions = {}; + tstOptions[paramName] = refNode[paramName].minValue; + should( + () => tstNode = new DynamicsCompressorNode(context, tstOptions), + `${prefix}: tstNode = new DynamicsCompressorNode(context, ${ + JSON.stringify(tstOptions)})`) + .notThrow(); + + + // Automate the AudioParam of the reference node with a linear ramp + should( + () => refNode[paramName].setValueAtTime( + refNode[paramName].minValue, 0), + `${prefix}: refNode[${paramName}].setValueAtTime(refNode[${ + paramName}].minValue, 0)`) + .notThrow(); + + should( + () => refNode[paramName].linearRampToValueAtTime( + refNode[paramName].maxValue, testDuration), + `${prefix}: refNode[${paramName}].linearRampToValueAtTime(refNode[${ + paramName}].minValue, ${testDuration})`) + .notThrow(); + + + // Create the input node and automate it so that it's output when added + // to the intrinsic value of the AudioParam we get the same values as + // the automations on the ference node. We need to do it this way + // because the ratio AudioParam has a nominal range of [1, 20] so we + // can't just set the value to 0, which is what we'd normally do. + let mod; + should( + () => mod = new ConstantSourceNode(context, {offset: 0}), + `${prefix}: mod = new ConstantSourceNode(context, {offset: 0})`) + .notThrow(); + let endValue = + refNode[paramName].maxValue - refNode[paramName].minValue; + should( + () => mod.offset.setValueAtTime(0, 0), + `${prefix}: mod.offset.setValueAtTime(0, 0)`) + .notThrow(); + should( + () => mod.offset.linearRampToValueAtTime(endValue, testDuration), + `${prefix}: mod.offset.linearRampToValueAtTime(${endValue}, ${ + testDuration})`) + .notThrow(); + + // Connect up everything. + should( + () => mod.connect(tstNode[paramName]), + `${prefix}: mod.connect(tstNode[${paramName}])`) + .notThrow(); + + src.connect(refNode).connect(merger, 0, 0); + src.connect(tstNode).connect(merger, 0, 1); + + // Go! + src.start(); + mod.start(); + + const buffer = await context.startRendering(); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + + // The expected and actual results must be EXACTLY the same. + should(actual, `k-rate ${paramName} AudioParam with input`) + .beCloseToArray(expected, {absoluteThreshold: 0}); + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-gain.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-gain.html new file mode 100644 index 0000000000..887d9f78db --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-gain.html @@ -0,0 +1,47 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParam of GainNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="automation-rate-testing.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define('Test k-rate GainNode', (task, should) => { + // Arbitrary sample rate and duration. + let sampleRate = 8000; + let testDuration = 1; + let context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + + doTest(context, should, { + nodeName: 'GainNode', + nodeOptions: null, + prefix: 'GainNode', + // Set AudioParam to k-rate + rateSettings: [{name: 'gain', value: 'k-rate'}], + // Automate + automations: [{ + name: 'gain', + methods: [ + {name: 'setValueAtTime', options: [1, 0]}, + {name: 'linearRampToValueAtTime', options: [0, testDuration]} + ] + }] + }).then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-oscillator-connections.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-oscillator-connections.html new file mode 100644 index 0000000000..475b364367 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-oscillator-connections.html @@ -0,0 +1,578 @@ +<!doctype html> +<html> + <head> + <title> + k-rate AudioParams with inputs for OscillatorNode + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // Sample rate must be a power of two to eliminate round-off when + // computing time from frames and vice versa. Using a non-power of two + // will work, but the thresholds below will not be zero. They're probably + // closer to 1e-5 or so, but if everything is working correctly, the + // outputs really should be exactly equal. + const sampleRate = 8192; + + // Fairly arbitrary but short duration to limit runtime. + const testFrames = 5 * RENDER_QUANTUM_FRAMES; + const testDuration = testFrames / sampleRate; + + audit.define( + {label: 'Test 1', description: 'k-rate frequency input'}, + async (task, should) => { + // Test that an input to the frequency AudioParam set to k-rate + // works. + + // Fairly arbitrary start and end frequencies for the automation. + const freqStart = 100; + const freqEnd = 2000; + + let refSetup = (context) => { + let srcRef = new OscillatorNode(context, {frequency: 0}); + + should( + () => srcRef.frequency.automationRate = 'k-rate', + `${task.label}: srcRef.frequency.automationRate = 'k-rate'`) + .notThrow(); + should( + () => srcRef.frequency.setValueAtTime(freqStart, 0), + `${task.label}: srcRef.frequency.setValueAtTime(${ + freqStart}, 0)`) + .notThrow(); + should( + () => srcRef.frequency.linearRampToValueAtTime( + freqEnd, testDuration), + `${task.label}: srcRef.frequency.linearRampToValueAtTime(${ + freqEnd}, ${testDuration})`) + .notThrow(); + + return srcRef; + }; + + let testSetup = (context) => { + let srcTest = new OscillatorNode(context, {frequency: 0}); + should( + () => srcTest.frequency.automationRate = 'k-rate', + `${task.label}: srcTest.frequency.automationRate = 'k-rate'`) + .notThrow(); + + return srcTest; + }; + + let modSetup = (context) => { + let mod = new ConstantSourceNode(context, {offset: 0}); + + should( + () => mod.offset.setValueAtTime(freqStart, 0), + `${task.label}: modFreq.offset.setValueAtTime(${ + freqStart}, 0)`) + .notThrow(); + should( + () => + mod.offset.linearRampToValueAtTime(freqEnd, testDuration), + `${task.label}: modFreq.offset.linearRampToValueAtTime(${ + freqEnd}, ${testDuration})`) + .notThrow(); + + // This node is going to be connected to the frequency AudioParam. + return {frequency: mod}; + }; + + await testParams(should, { + prefix: task.label, + summary: 'k-rate frequency with input', + setupRefOsc: refSetup, + setupTestOsc: testSetup, + setupMod: modSetup + }); + + task.done(); + }); + + audit.define( + {label: 'Test 2', description: 'k-rate detune input'}, + async (task, should) => { + // Test that an input to the detune AudioParam set to k-rate works. + // Threshold experimentally determined. It should be probably not + // be much larger than 5e-5. or something is not right. + + // Fairly arbitrary start and end detune values for automation. + const detuneStart = 0; + const detuneEnd = 2000; + + let refSetup = (context) => { + let srcRef = new OscillatorNode(context, {detune: 0}); + + should( + () => srcRef.detune.automationRate = 'k-rate', + `${task.label}: srcRef.detune.automationRate = 'k-rate'`) + .notThrow(); + + should( + () => srcRef.detune.setValueAtTime(detuneStart, 0), + `${task.label}: srcRef.detune.setValueAtTime(${ + detuneStart}, 0)`) + .notThrow(); + should( + () => srcRef.detune.linearRampToValueAtTime( + detuneEnd, testDuration), + `${task.label}: srcRef.detune.linearRampToValueAtTime(${ + detuneEnd}, ${testDuration})`) + .notThrow(); + + return srcRef; + }; + + let testSetup = (context) => { + let srcTest = new OscillatorNode(context, {detune: 0}); + + should( + () => srcTest.detune.automationRate = 'k-rate', + `${task.label}: srcTest.detune.automationRate = 'k-rate'`) + .notThrow(); + + return srcTest; + }; + + let modSetup = (context) => { + let mod = new ConstantSourceNode(context, {offset: 0}); + + should( + () => mod.offset.setValueAtTime(detuneStart, 0), + `${task.label}: modDetune.offset.setValueAtTime(${ + detuneStart}, 0)`) + .notThrow(); + should( + () => mod.offset.linearRampToValueAtTime( + detuneEnd, testDuration), + `${task.label}: modDetune.offset.linearRampToValueAtTime(${ + detuneEnd}, ${testDuration})`) + .notThrow(); + + return {detune: mod}; + }; + + await testParams(should, { + prefix: task.label, + summary: 'k-rate detune with input', + setupRefOsc: refSetup, + setupTestOsc: testSetup, + setupMod: modSetup + }); + + task.done(); + }); + + audit.define( + { + label: 'Test 3', + description: 'k-rate frequency input with a-rate detune' + }, + async (task, should) => { + // Test OscillatorNode with a k-rate frequency with input and an + // a-rate detune iwth automations. + + // Fairly arbitrary start and end values for the frequency and + // detune automations. + const freqStart = 100; + const freqEnd = 2000; + const detuneStart = 0; + const detuneEnd = -2000; + + let refSetup = (context) => { + let node = new OscillatorNode(context, {frequency: 0}); + + // Set up k-rate frequency and a-rate detune + should( + () => node.frequency.automationRate = 'k-rate', + `${task.label}: srcRef.frequency.automationRate = 'k-rate'`) + .notThrow(); + should( + () => node.frequency.setValueAtTime(freqStart, 0), + `${task.label}: srcRef.frequency.setValueAtTime(${ + freqStart}, 0)`) + .notThrow(); + should( + () => node.frequency.linearRampToValueAtTime( + 2000, testDuration), + `${task.label}: srcRef.frequency.linearRampToValueAtTime(${ + freqEnd}, ${testDuration})`) + .notThrow(); + should( + () => node.detune.setValueAtTime(detuneStart, 0), + `${task.label}: srcRef.detune.setValueAtTime(${ + detuneStart}, 0)`) + .notThrow(); + should( + () => node.detune.linearRampToValueAtTime( + detuneEnd, testDuration), + `${task.label}: srcRef.detune.linearRampToValueAtTime(${ + detuneEnd}, ${testDuration})`) + .notThrow(); + + return node; + }; + + let testSetup = (context) => { + let node = new OscillatorNode(context, {frequency: 0}); + + should( + () => node.frequency.automationRate = 'k-rate', + `${task.label}: srcTest.frequency.automationRate = 'k-rate'`) + .notThrow(); + should( + () => node.detune.setValueAtTime(detuneStart, 0), + `${task.label}: srcTest.detune.setValueAtTime(${ + detuneStart}, 0)`) + .notThrow(); + should( + () => node.detune.linearRampToValueAtTime( + detuneEnd, testDuration), + `${task.label}: srcTest.detune.linearRampToValueAtTime(${ + detuneEnd}, ${testDuration})`) + .notThrow(); + + return node; + }; + + let modSetup = (context) => { + let mod = {}; + mod['frequency'] = new ConstantSourceNode(context, {offset: 0}); + + should( + () => mod['frequency'].offset.setValueAtTime(freqStart, 0), + `${task.label}: modFreq.offset.setValueAtTime(${ + freqStart}, 0)`) + .notThrow(); + + should( + () => mod['frequency'].offset.linearRampToValueAtTime( + 2000, testDuration), + `${task.label}: modFreq.offset.linearRampToValueAtTime(${ + freqEnd}, ${testDuration})`) + .notThrow(); + + return mod; + }; + + await testParams(should, { + prefix: task.label, + summary: 'k-rate frequency input with a-rate detune', + setupRefOsc: refSetup, + setupTestOsc: testSetup, + setupMod: modSetup + }); + + task.done(); + }); + + audit.define( + { + label: 'Test 4', + description: 'a-rate frequency with k-rate detune input' + }, + async (task, should) => { + // Test OscillatorNode with an a-rate frequency with automations and + // a k-rate detune with input. + + // Fairly arbitrary start and end values for the frequency and + // detune automations. + const freqStart = 100; + const freqEnd = 2000; + const detuneStart = 0; + const detuneEnd = -2000; + + let refSetup = (context) => { + let node = new OscillatorNode(context, {detune: 0}); + + // Set up a-rate frequency and k-rate detune + should( + () => node.frequency.setValueAtTime(freqStart, 0), + `${task.label}: srcRef.frequency.setValueAtTime(${ + freqStart}, 0)`) + .notThrow(); + should( + () => node.frequency.linearRampToValueAtTime( + 2000, testDuration), + `${task.label}: srcRef.frequency.linearRampToValueAtTime(${ + freqEnd}, ${testDuration})`) + .notThrow(); + should( + () => node.detune.automationRate = 'k-rate', + `${task.label}: srcRef.detune.automationRate = 'k-rate'`) + .notThrow(); + should( + () => node.detune.setValueAtTime(detuneStart, 0), + `${task.label}: srcRef.detune.setValueAtTime(${ + detuneStart}, 0)`) + .notThrow(); + should( + () => node.detune.linearRampToValueAtTime( + detuneEnd, testDuration), + `${task.label}: srcRef.detune.linearRampToValueAtTime(${ + detuneEnd}, ${testDuration})`) + .notThrow(); + + return node; + }; + + let testSetup = (context) => { + let node = new OscillatorNode(context, {detune: 0}); + + should( + () => node.detune.automationRate = 'k-rate', + `${task.label}: srcTest.detune.automationRate = 'k-rate'`) + .notThrow(); + should( + () => node.frequency.setValueAtTime(freqStart, 0), + `${task.label}: srcTest.frequency.setValueAtTime(${ + freqStart}, 0)`) + .notThrow(); + should( + () => node.frequency.linearRampToValueAtTime( + freqEnd, testDuration), + `${task.label}: srcTest.frequency.linearRampToValueAtTime(${ + freqEnd}, ${testDuration})`) + .notThrow(); + + return node; + }; + + let modSetup = (context) => { + let mod = {}; + const name = 'detune'; + + mod['detune'] = new ConstantSourceNode(context, {offset: 0}); + should( + () => mod[name].offset.setValueAtTime(detuneStart, 0), + `${task.label}: modDetune.offset.setValueAtTime(${ + detuneStart}, 0)`) + .notThrow(); + + should( + () => mod[name].offset.linearRampToValueAtTime( + detuneEnd, testDuration), + `${task.label}: modDetune.offset.linearRampToValueAtTime(${ + detuneEnd}, ${testDuration})`) + .notThrow(); + + return mod; + }; + + await testParams(should, { + prefix: task.label, + summary: 'k-rate detune input with a-rate frequency', + setupRefOsc: refSetup, + setupTestOsc: testSetup, + setupMod: modSetup + }); + + task.done(); + }); + + audit.define( + { + label: 'Test 5', + description: 'k-rate inputs for frequency and detune' + }, + async (task, should) => { + // Test OscillatorNode with k-rate frequency and detune with inputs + // on both. + + // Fairly arbitrary start and end values for the frequency and + // detune automations. + const freqStart = 100; + const freqEnd = 2000; + const detuneStart = 0; + const detuneEnd = -2000; + + let refSetup = (context) => { + let node = new OscillatorNode(context, {frequency: 0, detune: 0}); + + should( + () => node.frequency.automationRate = 'k-rate', + `${task.label}: srcRef.frequency.automationRate = 'k-rate'`) + .notThrow(); + should( + () => node.frequency.setValueAtTime(freqStart, 0), + `${task.label}: srcRef.setValueAtTime(${freqStart}, 0)`) + .notThrow(); + should( + () => node.frequency.linearRampToValueAtTime( + freqEnd, testDuration), + `${task.label}: srcRef;.frequency.linearRampToValueAtTime(${ + freqEnd}, ${testDuration})`) + .notThrow(); + should( + () => node.detune.automationRate = 'k-rate', + `${task.label}: srcRef.detune.automationRate = 'k-rate'`) + .notThrow(); + should( + () => node.detune.setValueAtTime(detuneStart, 0), + `${task.label}: srcRef.detune.setValueAtTime(${ + detuneStart}, 0)`) + .notThrow(); + should( + () => node.detune.linearRampToValueAtTime( + detuneEnd, testDuration), + `${task.label}: srcRef.detune.linearRampToValueAtTime(${ + detuneEnd}, ${testDuration})`) + .notThrow(); + + return node; + }; + + let testSetup = (context) => { + let node = new OscillatorNode(context, {frequency: 0, detune: 0}); + + should( + () => node.frequency.automationRate = 'k-rate', + `${task.label}: srcTest.frequency.automationRate = 'k-rate'`) + .notThrow(); + should( + () => node.detune.automationRate = 'k-rate', + `${task.label}: srcTest.detune.automationRate = 'k-rate'`) + .notThrow(); + + return node; + }; + + let modSetup = (context) => { + let modF = new ConstantSourceNode(context, {offset: 0}); + + should( + () => modF.offset.setValueAtTime(freqStart, 0), + `${task.label}: modFreq.offset.setValueAtTime(${ + freqStart}, 0)`) + .notThrow(); + should( + () => modF.offset.linearRampToValueAtTime( + freqEnd, testDuration), + `${task.label}: modFreq.offset.linearRampToValueAtTime(${ + freqEnd}, ${testDuration})`) + .notThrow(); + + let modD = new ConstantSourceNode(context, {offset: 0}); + + should( + () => modD.offset.setValueAtTime(detuneStart, 0), + `${task.label}: modDetune.offset.setValueAtTime(${ + detuneStart}, 0)`) + .notThrow(); + should( + () => modD.offset.linearRampToValueAtTime( + detuneEnd, testDuration), + `${task.label}: modDetune.offset.linearRampToValueAtTime(${ + detuneEnd}, ${testDuration})`) + .notThrow(); + + return {frequency: modF, detune: modD}; + }; + + await testParams(should, { + prefix: task.label, + summary: 'k-rate inputs for both frequency and detune', + setupRefOsc: refSetup, + setupTestOsc: testSetup, + setupMod: modSetup + }); + + task.done(); + }); + + audit.run(); + + async function testParams(should, options) { + // Test a-rate and k-rate AudioParams of an OscillatorNode. + // + // |options| should be a dictionary with these members: + // prefix - prefix to use for messages + // summary - message to be printed with the final results + // setupRefOsc - function returning the reference oscillator + // setupTestOsc - function returning the test oscillator + // setupMod - function returning nodes to be connected to the + // AudioParams. + // + // |setupRefOsc| and |setupTestOsc| are given the context and each + // method is expected to create an OscillatorNode with the appropriate + // automations for testing. The constructed OscillatorNode is returned. + // + // The reference oscillator + // should automate the desired AudioParams at the appropriate automation + // rate, and the output is the expected result. + // + // The test oscillator should set up the AudioParams but expect the + // AudioParam(s) have an input that matches the automation for the + // reference oscillator. + // + // |setupMod| must create one or two ConstantSourceNodes with exactly + // the same automations as used for the reference oscillator. This node + // is used as the input to an AudioParam of the test oscillator. This + // function returns a dictionary whose members are named 'frequency' and + // 'detune'. The name indicates which AudioParam the constant source + // node should be connected to. + + // Two channels: 0 = reference signal, 1 = test signal + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + // The reference oscillator. + let srcRef = options.setupRefOsc(context); + + // The test oscillator. + let srcTest = options.setupTestOsc(context); + + // Inputs to AudioParam. + let mod = options.setupMod(context); + + if (mod['frequency']) { + should( + () => mod['frequency'].connect(srcTest.frequency), + `${options.prefix}: modFreq.connect(srcTest.frequency)`) + .notThrow(); + mod['frequency'].start() + } + + if (mod['detune']) { + should( + () => mod['detune'].connect(srcTest.detune), + `${options.prefix}: modDetune.connect(srcTest.detune)`) + .notThrow(); + mod['detune'].start() + } + + srcRef.connect(merger, 0, 0); + srcTest.connect(merger, 0, 1); + + srcRef.start(); + srcTest.start(); + + let buffer = await context.startRendering(); + let expected = buffer.getChannelData(0); + let actual = buffer.getChannelData(1); + + // The output of the reference and test oscillator should be + // exactly equal because the AudioParam values should be exactly + // equal. + should(actual, options.summary).beCloseToArray(expected, { + absoluteThreshold: 0 + }); + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-oscillator.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-oscillator.html new file mode 100644 index 0000000000..6803f55eab --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-oscillator.html @@ -0,0 +1,88 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParams of OscillatorNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // Arbitrary sample rate and duration. + let sampleRate = 8000; + + // Only new a few render quanta to verify things are working. + let testDuration = 4 * 128 / sampleRate; + + [{name: 'detune', initial: 0, final: 1200}, { + name: 'frequency', + initial: 440, + final: sampleRate / 2 + }].forEach(paramProperty => { + audit.define( + 'Oscillator k-rate ' + paramProperty.name, (task, should) => { + let context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + let inverter = new GainNode(context, {gain: -1}); + inverter.connect(merger, 0, 2); + + let kRateNode = new OscillatorNode(context); + let aRateNode = new OscillatorNode(context); + + kRateNode.connect(merger, 0, 0); + aRateNode.connect(merger, 0, 1); + + kRateNode.connect(merger, 0, 2); + aRateNode.connect(inverter); + + // Set the rate + kRateNode[paramProperty.name].automationRate = 'k-rate'; + + // Automate the offset + kRateNode[paramProperty.name].setValueAtTime( + paramProperty.initial, 0); + kRateNode[paramProperty.name].linearRampToValueAtTime( + paramProperty.final, testDuration); + + aRateNode[paramProperty.name].setValueAtTime( + paramProperty.initial, 0); + aRateNode[paramProperty.name].linearRampToValueAtTime( + paramProperty.final, testDuration); + + kRateNode.start(); + aRateNode.start(); + + context.startRendering() + .then(audioBuffer => { + let kRateOut = audioBuffer.getChannelData(0); + let aRateOut = audioBuffer.getChannelData(1); + let diff = audioBuffer.getChannelData(2); + + // Verify that the outputs are different. + should( + diff, + 'k-rate ' + paramProperty.name + + ': Difference between a-rate and k-rate outputs') + .notBeConstantValueOf(0); + + }) + .then(() => task.done()); + }); + }); + + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-panner-connections.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-panner-connections.html new file mode 100644 index 0000000000..001cf63bd3 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-panner-connections.html @@ -0,0 +1,238 @@ +<!doctype html> +<html> + <head> + <title> + k-rate AudioParams with inputs for PannerNode + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + </title> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define( + {label: 'Panner x', description: 'k-rate input'}, + async (task, should) => { + await testPannerParams(should, {param: 'positionX'}); + task.done(); + }); + + audit.define( + {label: 'Panner y', description: 'k-rate input'}, + async (task, should) => { + await testPannerParams(should, {param: 'positionY'}); + task.done(); + }); + + audit.define( + {label: 'Panner z', description: 'k-rate input'}, + async (task, should) => { + await testPannerParams(should, {param: 'positionZ'}); + task.done(); + }); + + audit.define( + {label: 'Listener x', description: 'k-rate input'}, + async (task, should) => { + await testListenerParams(should, {param: 'positionX'}); + task.done(); + }); + + audit.define( + {label: 'Listener y', description: 'k-rate input'}, + async (task, should) => { + await testListenerParams(should, {param: 'positionY'}); + task.done(); + }); + + audit.define( + {label: 'Listener z', description: 'k-rate input'}, + async (task, should) => { + await testListenerParams(should, {param: 'positionZ'}); + task.done(); + }); + + audit.run(); + + async function testPannerParams(should, options) { + // Arbitrary sample rate and duration. + const sampleRate = 8000; + const testFrames = 5 * RENDER_QUANTUM_FRAMES; + let testDuration = testFrames / sampleRate; + // Four channels needed because the first two are for the output of + // the reference panner, and the next two are for the test panner. + let context = new OfflineAudioContext({ + numberOfChannels: 4, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + // Create a stereo source out of two mono sources + let src0 = new ConstantSourceNode(context, {offset: 1}); + let src1 = new ConstantSourceNode(context, {offset: 2}); + let src = new ChannelMergerNode(context, {numberOfInputs: 2}); + src0.connect(src, 0, 0); + src1.connect(src, 0, 1); + + let finalPosition = 100; + + // Reference panner node with k-rate AudioParam automations. The + // output of this panner is the reference output. + let refNode = new PannerNode(context); + // Initialize the panner location to somewhat arbitrary values. + refNode.positionX.value = 1; + refNode.positionY.value = 50; + refNode.positionZ.value = -25; + + // Set the AudioParam under test with the appropriate automations. + refNode[options.param].automationRate = 'k-rate'; + refNode[options.param].setValueAtTime(1, 0); + refNode[options.param].linearRampToValueAtTime( + finalPosition, testDuration); + let refSplit = new ChannelSplitterNode(context, {numberOfOutputs: 2}); + + // Test panner node with k-rate AudioParam with inputs. + let tstNode = new PannerNode(context); + tstNode.positionX.value = 1; + tstNode.positionY.value = 50; + tstNode.positionZ.value = -25; + tstNode[options.param].value = 0; + tstNode[options.param].automationRate = 'k-rate'; + let tstSplit = new ChannelSplitterNode(context, {numberOfOutputs: 2}); + + // The input to the AudioParam. It must have the same automation + // sequence as used by refNode. And must be a-rate to demonstrate + // the k-rate effect of the AudioParam. + let mod = new ConstantSourceNode(context, {offset: 0}); + mod.offset.setValueAtTime(1, 0); + mod.offset.linearRampToValueAtTime(finalPosition, testDuration); + + mod.connect(tstNode[options.param]); + + src.connect(refNode).connect(refSplit); + src.connect(tstNode).connect(tstSplit); + + refSplit.connect(merger, 0, 0); + refSplit.connect(merger, 1, 1); + tstSplit.connect(merger, 0, 2); + tstSplit.connect(merger, 1, 3); + + mod.start(); + src0.start(); + src1.start(); + + const buffer = await context.startRendering(); + let expected0 = buffer.getChannelData(0); + let expected1 = buffer.getChannelData(1); + let actual0 = buffer.getChannelData(2); + let actual1 = buffer.getChannelData(3); + + should(expected0, `Panner: ${options.param}: Expected output channel 0`) + .notBeConstantValueOf(expected0[0]); + should(expected1, `${options.param}: Expected output channel 1`) + .notBeConstantValueOf(expected1[0]); + + // Verify output is a stair step because positionX is k-rate, + // and no other AudioParam is changing. + + for (let k = 0; k < testFrames; k += RENDER_QUANTUM_FRAMES) { + should( + actual0.slice(k, k + RENDER_QUANTUM_FRAMES), + `Panner: ${options.param}: Channel 0 output[${k}, ${ + k + RENDER_QUANTUM_FRAMES - 1}]`) + .beConstantValueOf(actual0[k]); + } + + for (let k = 0; k < testFrames; k += RENDER_QUANTUM_FRAMES) { + should( + actual1.slice(k, k + RENDER_QUANTUM_FRAMES), + `Panner: ${options.param}: Channel 1 output[${k}, ${ + k + RENDER_QUANTUM_FRAMES - 1}]`) + .beConstantValueOf(actual1[k]); + } + + should(actual0, `Panner: ${options.param}: Actual output channel 0`) + .beCloseToArray(expected0, {absoluteThreshold: 0}); + should(actual1, `Panner: ${options.param}: Actual output channel 1`) + .beCloseToArray(expected1, {absoluteThreshold: 0}); + } + + async function testListenerParams(should, options) { + // Arbitrary sample rate and duration. + const sampleRate = 8000; + const testFrames = 5 * RENDER_QUANTUM_FRAMES; + let testDuration = testFrames / sampleRate; + // Four channels needed because the first two are for the output of + // the reference panner, and the next two are for the test panner. + let context = new OfflineAudioContext({ + numberOfChannels: 2, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + // Create a stereo source out of two mono sources + let src0 = new ConstantSourceNode(context, {offset: 1}); + let src1 = new ConstantSourceNode(context, {offset: 2}); + let src = new ChannelMergerNode(context, {numberOfInputs: 2}); + src0.connect(src, 0, 0); + src1.connect(src, 0, 1); + + let finalPosition = 100; + + // Reference panner node with k-rate AudioParam automations. The + // output of this panner is the reference output. + let panner = new PannerNode(context); + panner.positionX.value = 10; + panner.positionY.value = 50; + panner.positionZ.value = -25; + + src.connect(panner); + + let mod = new ConstantSourceNode(context, {offset: 0}); + mod.offset.setValueAtTime(1, 0); + mod.offset.linearRampToValueAtTime(finalPosition, testDuration); + + context.listener[options.param].automationRate = 'k-rate'; + mod.connect(context.listener[options.param]); + + panner.connect(context.destination); + + src0.start(); + src1.start(); + mod.start(); + + const buffer = await context.startRendering(); + let c0 = buffer.getChannelData(0); + let c1 = buffer.getChannelData(1); + + // Verify output is a stair step because positionX is k-rate, + // and no other AudioParam is changing. + + for (let k = 0; k < testFrames; k += RENDER_QUANTUM_FRAMES) { + should( + c0.slice(k, k + RENDER_QUANTUM_FRAMES), + `Listener: ${options.param}: Channel 0 output[${k}, ${ + k + RENDER_QUANTUM_FRAMES - 1}]`) + .beConstantValueOf(c0[k]); + } + + for (let k = 0; k < testFrames; k += RENDER_QUANTUM_FRAMES) { + should( + c1.slice(k, k + RENDER_QUANTUM_FRAMES), + `Listener: ${options.param}: Channel 1 output[${k}, ${ + k + RENDER_QUANTUM_FRAMES - 1}]`) + .beConstantValueOf(c1[k]); + } + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-panner.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-panner.html new file mode 100644 index 0000000000..60200b2471 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-panner.html @@ -0,0 +1,178 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParams of PannerNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="automation-rate-testing.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // Define a test where we verify that a k-rate audio param produces + // different results from an a-rate audio param for each of the audio + // params of a biquad. + // + // Each entry gives the name of the AudioParam, an initial value to be + // used with setValueAtTime, and a final value to be used with + // linearRampToValueAtTime. (See |doTest| for details as well.) + + [{name: 'positionX', initial: 0, final: 1000}, + {name: 'positionY', initial: 0, final: 1000}, + {name: 'orientationX', initial: 1, final: 10}, + {name: 'orientationY', initial: 1, final: 10}, + {name: 'orientationZ', initial: 1, final: 10}, + ].forEach(paramProperty => { + audit.define('Panner k-rate ' + paramProperty.name, (task, should) => { + // Arbitrary sample rate and duration. + let sampleRate = 8000; + let testDuration = 5 * 128 / sampleRate; + let context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + doTest(context, should, { + sourceNodeName: 'ConstantSourceNode', + verifyPieceWiseConstant: true, + nodeName: 'PannerNode', + // Make the source directional so orientation matters, and set some + // defaults for the position and orientation so that we're not on an + // axis where the azimuth and elevation might be constant when + // moving one of the AudioParams. + nodeOptions: { + distanceModel: 'inverse', + coneOuterAngle: 360, + coneInnerAngle: 0, + positionX: 1, + positionY: 1, + positionZ: 1, + orientationX: 0, + orientationY: 1, + orientationZ: 1 + }, + prefix: `k-rate ${paramProperty.name}`, + // Just set the frequency to k-rate + rateSettings: [ + {name: paramProperty.name, value: 'k-rate'}, + ], + // Automate just the given AudioParam + automations: [{ + name: paramProperty.name, + methods: [ + {name: 'setValueAtTime', options: [paramProperty.initial, 0]}, { + name: 'linearRampToValueAtTime', + options: [paramProperty.final, testDuration] + } + ] + }] + }).then(() => task.done()); + }); + }); + + // Test k-rate automation of the listener. The intial and final + // automation values are pretty arbitrary, except that they should be such + // that the panner and listener produces non-constant output. + [{name: 'positionX', initial: [1, 0], final: [1000, 1]}, + {name: 'positionY', initial: [1, 0], final: [1000, 1]}, + {name: 'positionZ', initial: [1, 0], final: [1000, 1]}, + {name: 'forwardX', initial: [-1, 0], final: [1, 1]}, + {name: 'forwardY', initial: [-1, 0], final: [1, 1]}, + {name: 'forwardZ', initial: [-1, 0], final: [1, 1]}, + {name: 'upX', initial: [-1, 0], final: [1000, 1]}, + {name: 'upY', initial: [-1, 0], final: [1000, 1]}, + {name: 'upZ', initial: [-1, 0], final: [1000, 1]}, + ].forEach(paramProperty => { + audit.define( + 'Listener k-rate ' + paramProperty.name, (task, should) => { + // Arbitrary sample rate and duration. + let sampleRate = 8000; + let testDuration = 5 * 128 / sampleRate; + let context = new OfflineAudioContext({ + numberOfChannels: 1, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + doListenerTest(context, should, { + param: paramProperty.name, + initial: paramProperty.initial, + final: paramProperty.final + }).then(() => task.done()); + }); + }); + + audit.run(); + + function doListenerTest(context, should, options) { + let src = new ConstantSourceNode(context); + let panner = new PannerNode(context, { + distanceModel: 'inverse', + coneOuterAngle: 360, + coneInnerAngle: 10, + positionX: 10, + positionY: 10, + positionZ: 10, + orientationX: 1, + orientationY: 1, + orientationZ: 1 + }); + + src.connect(panner).connect(context.destination); + + src.start(); + + let listener = context.listener; + + // Set listener properties to "random" values so that motion on one of + // the attributes actually changes things relative to the panner + // location. And the up and forward directions should have a simple + // relationship between them. + listener.positionX.value = -1; + listener.positionY.value = 1; + listener.positionZ.value = -1; + listener.forwardX.value = -1; + listener.forwardY.value = 1; + listener.forwardZ.value = -1; + // Make the up vector not parallel or perpendicular to the forward and + // position vectors so that automations of the up vector produce + // noticeable differences. + listener.upX.value = 1; + listener.upY.value = 1; + listener.upZ.value = 2; + + let audioParam = listener[options.param]; + audioParam.automationRate = 'k-rate'; + + let prefix = `Listener ${options.param}`; + should(audioParam.automationRate, prefix + '.automationRate') + .beEqualTo('k-rate'); + should(() => { + audioParam.setValueAtTime(...options.initial); + }, prefix + `.setValueAtTime(${options.initial})`).notThrow(); + should(() => { + audioParam.linearRampToValueAtTime(...options.final); + }, prefix + `.linearRampToValueAtTime(${options.final})`).notThrow(); + + return context.startRendering().then(renderedBuffer => { + let prefix = `Listener k-rate ${options.param}: `; + let output = renderedBuffer.getChannelData(0); + // Sanity check that the output isn't constant. + should(output, prefix + `Output`).notBeConstantValueOf(output[0]); + + // Verify that the output is constant over each render quantum + for (let k = 0; k < output.length; k += 128) { + should( + output.slice(k, k + 128), prefix + `Output [${k}, ${k + 127}]`) + .beConstantValueOf(output[k]); + } + }); + } + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-stereo-panner.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-stereo-panner.html new file mode 100644 index 0000000000..06905b89c3 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/k-rate-stereo-panner.html @@ -0,0 +1,48 @@ +<!doctype html> +<html> + <head> + <title>Test k-rate AudioParam of StereoPannerNode</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="automation-rate-testing.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define('Test k-rate StereoPannerNode', (task, should) => { + // Arbitrary sample rate and duration. + let sampleRate = 8000; + let testDuration = 1; + let context = new OfflineAudioContext({ + numberOfChannels: 3, + sampleRate: sampleRate, + length: testDuration * sampleRate + }); + + doTest(context, should, { + nodeName: 'StereoPannerNode', + nodeOptions: null, + prefix: 'StereoPannerNode', + // Set all AudioParams to k-rate. + rateSettings: [{name: 'pan', value: 'k-rate'}], + // Automate just the frequency. + automations: [{ + name: 'pan', + methods: [ + {name: 'setValueAtTime', options: [0, 0]}, { + name: 'linearRampToValueAtTime', + options: [.5, testDuration] + } + ] + }] + }).then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/moderate-exponentialRamp.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/moderate-exponentialRamp.html new file mode 100644 index 0000000000..cf32d253ae --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/moderate-exponentialRamp.html @@ -0,0 +1,50 @@ +<!DOCTYPE html> +<title>Test exponentialRampToValueAtTime() with a moderate ratio of change</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> +'use strict'; + +promise_test(async function() { + const bufferSize = 128; + const sampleRate = 16384; + // 3 * 2^6, not a power of two, so that there is some rounding error in the + // exponent + const rampEndSample = 192; + // These values are chosen so that there is rounding error in + // (offset1/offset0)^(1/rampEndSample). + const offset0 = 4.; + const offset1 = 7.; + // 8 units in the last place (ulp) is a generous tolerance if single + // precision powf() is used. Math.pow(2, -23) ~ 1 ulp. + // A simple recurrence relation formulation with only single precision + // arithmetic applied across the whole rendering quantum would accumulate + // error up to 50 ulp, losing 5.6 of the 24 bits of precision. + const relativeTolerance = 8 * Math.pow(2, -23); + + const context = new OfflineAudioContext(1, bufferSize, sampleRate); + + const source = new ConstantSourceNode(context); + source.start(); + // Explicit event to work around + // https://bugzilla.mozilla.org/show_bug.cgi?id=1265393 + source.offset.setValueAtTime(offset0, 0.); + source.offset.exponentialRampToValueAtTime(offset1, rampEndSample/sampleRate); + source.connect(context.destination); + + const buffer = await context.startRendering(); + assert_equals(buffer.length, bufferSize, "output buffer length"); + const output = buffer.getChannelData(0); + const ratio = offset1 / offset0; + for (let i = 0; i < bufferSize; ++i) { + // Math.pow() uses double precision, while `output` has single precision, + // but `tolerance` is more than enough to accommodate differences. + const expected = offset0 * Math.pow(offset1/offset0, i/rampEndSample); + assert_approx_equals( + output[i], + expected, + relativeTolerance * expected, + "scheduled value at " + i); + } +}); +</script> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/nan-param.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/nan-param.html new file mode 100644 index 0000000000..e9b8f0accb --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/nan-param.html @@ -0,0 +1,92 @@ +<!doctype html> +<html> + <head> + <title>Test Flushing of NaN to Zero in AudioParams</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + // See + // https://webaudio.github.io/web-audio-api/#computation-of-value. + // + // The computed value must replace NaN values in the output with + // the default value of the param. + audit.define('AudioParam NaN', async (task, should) => { + // For testing, we only need a small number of frames; and + // a low sample rate is perfectly fine. Use two channels. + // The first channel is for the AudioParam output. The + // second channel is for the AudioParam input. + let context = new OfflineAudioContext( + {numberOfChannels: 2, length: 256, sampleRate: 8192}); + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + merger.connect(context.destination); + + // A constant source with a huge value. + let mod = new ConstantSourceNode(context, {offset: 1e30}); + + // Gain nodes with a huge positive gain and huge negative + // gain. Combined with the huge offset in |mod|, the + // output of the gain nodes are +Infinity and -Infinity. + let gainPos = new GainNode(context, {gain: 1e30}); + let gainNeg = new GainNode(context, {gain: -1e30}); + + mod.connect(gainPos); + mod.connect(gainNeg); + + // Connect these to the second merger channel. This is a + // sanity check that the AudioParam input really is NaN. + gainPos.connect(merger, 0, 1); + gainNeg.connect(merger, 0, 1); + + // Source whose AudioParam is connected to the graph + // that produces NaN values. Use a non-default value offset + // just in case something is wrong we get default for some + // other reason. + let src = new ConstantSourceNode(context, {offset: 100}); + + gainPos.connect(src.offset); + gainNeg.connect(src.offset); + + // AudioParam output goes to channel 1 of the destination. + src.connect(merger, 0, 0); + + // Let's go! + mod.start(); + src.start(); + + let buffer = await context.startRendering(); + + let input = buffer.getChannelData(1); + let output = buffer.getChannelData(0); + + // Have to test manually for NaN values in the input because + // NaN fails all comparisons. + let isNaN = true; + for (let k = 0; k < input.length; ++k) { + if (!Number.isNaN(input[k])) { + isNaN = false; + break; + } + } + + should(isNaN, 'AudioParam input contains only NaN').beTrue(); + + // Output of the AudioParam should have all NaN values + // replaced by the default. + should(output, 'AudioParam output') + .beConstantValueOf(src.offset.defaultValue); + + task.done(); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-exponentialRampToValueAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-exponentialRampToValueAtTime.html new file mode 100644 index 0000000000..c81c3ad23e --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-exponentialRampToValueAtTime.html @@ -0,0 +1,70 @@ +<!doctype html> +<meta charset=utf-8> +<html> + <head> + <title>Test exponentialRampToValue with end time in the past</title> + <script src=/resources/testharness.js></script> + <script src=/resources/testharnessreport.js></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="retrospective-test.js"></script> + </head> + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define( + { + label: 'test', + description: 'Test exponentialRampToValue with end time in the past' + }, + (task, should) => { + let {context, source, test, reference} = setupRetrospectiveGraph(); + + // Suspend the context at this frame so we can synchronously set up + // automations. + const suspendFrame = 128; + + context.suspend(suspendFrame / context.sampleRate) + .then(() => { + // Call setTargetAtTime with a time in the past + test.gain.exponentialRampToValueAtTime( + 0.1, 0.5 * context.currentTime); + test.gain.exponentialRampToValueAtTime(0.9, 1.0); + + reference.gain.exponentialRampToValueAtTime( + 0.1, context.currentTime); + reference.gain.exponentialRampToValueAtTime(0.9, 1.0); + }) + .then(() => context.resume()); + + source.start(); + + context.startRendering() + .then(resultBuffer => { + let testValue = resultBuffer.getChannelData(0); + let referenceValue = resultBuffer.getChannelData(1); + + // Until the suspendFrame, both should be exactly equal to 1. + should( + testValue.slice(0, suspendFrame), + `Test[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + should( + referenceValue.slice(0, suspendFrame), + `Reference[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + + // After the suspendFrame, both should be equal (and not + // constant) + should( + testValue.slice(suspendFrame), `Test[${suspendFrame}:]`) + .beEqualToArray(referenceValue.slice(suspendFrame)); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-linearRampToValueAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-linearRampToValueAtTime.html new file mode 100644 index 0000000000..9f5e55fe55 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-linearRampToValueAtTime.html @@ -0,0 +1,70 @@ +<!doctype html> +<meta charset=utf-8> +<html> + <head> + <title>Test linearRampToValue with end time in the past</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="retrospective-test.js"></script> + </head> + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define( + { + label: 'test', + description: 'Test linearRampToValue with end time in the past' + }, + (task, should) => { + let {context, source, test, reference} = setupRetrospectiveGraph(); + + // Suspend the context at this frame so we can synchronously set up + // automations. + const suspendFrame = 128; + + context.suspend(suspendFrame / context.sampleRate) + .then(() => { + // Call setTargetAtTime with a time in the past + test.gain.linearRampToValueAtTime( + 0.1, 0.5 * context.currentTime); + test.gain.linearRampToValueAtTime(0.9, 1.0); + + reference.gain.linearRampToValueAtTime( + 0.1, context.currentTime); + reference.gain.linearRampToValueAtTime(0.9, 1.0); + }) + .then(() => context.resume()); + + source.start(); + + context.startRendering() + .then(resultBuffer => { + let testValue = resultBuffer.getChannelData(0); + let referenceValue = resultBuffer.getChannelData(1); + + // Until the suspendFrame, both should be exactly equal to 1. + should( + testValue.slice(0, suspendFrame), + `Test[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + should( + referenceValue.slice(0, suspendFrame), + `Reference[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + + // After the suspendFrame, both should be equal (and not + // constant) + should( + testValue.slice(suspendFrame), `Test[${suspendFrame}:]`) + .beEqualToArray(referenceValue.slice(suspendFrame)); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setTargetAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setTargetAtTime.html new file mode 100644 index 0000000000..41a37bdb91 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setTargetAtTime.html @@ -0,0 +1,80 @@ +<!doctype html> +<meta charset=utf-8> +<html> + <head> + <title>Test setTargetAtTime with start time in the past</title> + <script src=/resources/testharness.js></script> + <script src=/resources/testharnessreport.js></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + </head> + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define( + { + label: 'test', + description: 'Test setTargetAtTime with start time in the past' + }, + (task, should) => { + // Use a sample rate that is a power of two to eliminate round-off + // in computing the currentTime. + let context = new OfflineAudioContext(2, 16384, 16384); + let source = new ConstantSourceNode(context); + + // Suspend the context at this frame so we can synchronously set up + // automations. + const suspendFrame = 128; + + let test = new GainNode(context); + let reference = new GainNode(context); + + source.connect(test); + source.connect(reference); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + test.connect(merger, 0, 0); + reference.connect(merger, 0, 1); + + merger.connect(context.destination); + + context.suspend(suspendFrame / context.sampleRate) + .then(() => { + // Call setTargetAtTime with a time in the past + test.gain.setTargetAtTime(0.1, 0.5*context.currentTime, 0.1); + reference.gain.setTargetAtTime(0.1, context.currentTime, 0.1); + }) + .then(() => context.resume()); + + source.start(); + + context.startRendering() + .then(resultBuffer => { + let testValue = resultBuffer.getChannelData(0); + let referenceValue = resultBuffer.getChannelData(1); + + // Until the suspendFrame, both should be exactly equal to 1. + should( + testValue.slice(0, suspendFrame), + `Test[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + should( + referenceValue.slice(0, suspendFrame), + `Reference[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + + // After the suspendFrame, both should be equal (and not + // constant) + should( + testValue.slice(suspendFrame), `Test[${suspendFrame}:]`) + .beEqualToArray(referenceValue.slice(suspendFrame)); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setValueAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setValueAtTime.html new file mode 100644 index 0000000000..32cdc6307f --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setValueAtTime.html @@ -0,0 +1,74 @@ +<!DOCTYPE html> +<html> + <head> + <title>Test setValueAtTime with startTime in the past</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="retrospective-test.js"></script> + </head> + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define( + { + label: 'test', + description: 'Test setValueAtTime with startTime in the past' + }, + (task, should) => { + let {context, source, test, reference} = setupRetrospectiveGraph(); + + // Suspend the context at this frame so we can synchronously set up + // automations. + const suspendFrame = 128; + + // Use a ramp of slope 1 per frame to measure time. + // The end value is the extent of exact precision in single + // precision float. + const rampEnd = context.length - suspendFrame; + const rampEndSeconds = context.length / context.sampleRate; + + context.suspend(suspendFrame / context.sampleRate) + .then(() => { + // Call setValueAtTime with a time in the past + test.gain.setValueAtTime(0.0, 0.5 * context.currentTime); + test.gain.linearRampToValueAtTime(rampEnd, rampEndSeconds); + + reference.gain.setValueAtTime(0.0, context.currentTime); + reference.gain.linearRampToValueAtTime( + rampEnd, rampEndSeconds); + }) + .then(() => context.resume()); + + source.start(); + + context.startRendering() + .then(resultBuffer => { + let testValue = resultBuffer.getChannelData(0); + let referenceValue = resultBuffer.getChannelData(1); + + // Until the suspendFrame, both should be exactly equal to 1. + should( + testValue.slice(0, suspendFrame), + `Test[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + should( + referenceValue.slice(0, suspendFrame), + `Reference[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + + // After the suspendFrame, both should be equal (and not + // constant) + should( + testValue.slice(suspendFrame), `Test[${suspendFrame}:]`) + .beEqualToArray(referenceValue.slice(suspendFrame)); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setValueCurveAtTime.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setValueCurveAtTime.html new file mode 100644 index 0000000000..451b6ea829 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-setValueCurveAtTime.html @@ -0,0 +1,67 @@ +<!doctype html> +<html> + <head> + <title>Test SetValueCurve with start time in the past</title> + <script src=/resources/testharness.js></script> + <script src=/resources/testharnessreport.js></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="retrospective-test.js"></script> + </head> + </body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define( + { + label: 'test', + description: 'Test SetValueCurve with start time in the past' + }, + (task, should) => { + let {context, source, test, reference} = setupRetrospectiveGraph(); + + // Suspend the context at this frame so we can synchronously set up + // automations. + const suspendFrame = 128; + + context.suspend(suspendFrame / context.sampleRate) + .then(() => { + // Call setValueAtTime with a time in the past + test.gain.setValueCurveAtTime( + new Float32Array([1.0, 0.1]), 0.5 * context.currentTime, + 1.0); + reference.gain.setValueCurveAtTime( + new Float32Array([1.0, 0.1]), context.currentTime, 1.0); + }) + .then(() => context.resume()); + + source.start(); + + context.startRendering() + .then(resultBuffer => { + let testValue = resultBuffer.getChannelData(0); + let referenceValue = resultBuffer.getChannelData(1); + + // Until the suspendFrame, both should be exactly equal to 1. + should( + testValue.slice(0, suspendFrame), + `Test[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + should( + referenceValue.slice(0, suspendFrame), + `Reference[0:${suspendFrame - 1}]`) + .beConstantValueOf(1); + + // After the suspendFrame, both should be equal (and not + // constant) + should( + testValue.slice(suspendFrame), `Test[${suspendFrame}:]`) + .beEqualToArray(referenceValue.slice(suspendFrame)); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-test.js b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-test.js new file mode 100644 index 0000000000..bbda190f09 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/retrospective-test.js @@ -0,0 +1,29 @@ +// Create an audio graph on an offline context that consists of a +// constant source and two gain nodes. One of the nodes is the node te +// be tested and the other is the reference node. The output from the +// test node is in channel 0 of the offline context; the reference +// node is in channel 1. +// +// Returns a dictionary with the context, source node, the test node, +// and the reference node. +function setupRetrospectiveGraph() { + // Use a sample rate that is a power of two to eliminate round-off + // in computing the currentTime. + let context = new OfflineAudioContext(2, 16384, 16384); + let source = new ConstantSourceNode(context); + + let test = new GainNode(context); + let reference = new GainNode(context); + + source.connect(test); + source.connect(reference); + + let merger = new ChannelMergerNode( + context, {numberOfInputs: context.destination.channelCount}); + test.connect(merger, 0, 0); + reference.connect(merger, 0, 1); + + merger.connect(context.destination); + + return {context: context, source: source, test: test, reference: reference}; +} diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/set-target-conv.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/set-target-conv.html new file mode 100644 index 0000000000..2ed076cccf --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/set-target-conv.html @@ -0,0 +1,93 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<html> + <head> + <title>Test convergence of setTargetAtTime</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src='/webaudio/resources/audio-param.js'></script> + </head> + + <body> + <script> + let audit = Audit.createTaskRunner(); + + audit.define( + {task: 'setTargetAtTime', label: 'convergence handled correctly'}, + (task, should) => { + // Two channels: + // 0 - actual result + // 1 - expected result + const context = new OfflineAudioContext( + {numberOfChannels: 2, sampleRate: 8000, length: 8000}); + + const merger = new ChannelMergerNode( + context, {numberOfChannels: context.destination.channelCount}); + merger.connect(context.destination); + + // Construct test source that will have tha AudioParams being tested + // to verify that the AudioParams are working correctly. + let src; + + should( + () => src = new ConstantSourceNode(context), + 'src = new ConstantSourceNode(context)') + .notThrow(); + + src.connect(merger, 0, 0); + src.offset.setValueAtTime(1, 0); + + const timeConstant = 0.01; + + // testTime must be at least 10*timeConstant. Also, this must not + // lie on a render boundary. + const testTime = 0.15; + const rampEnd = testTime + 0.001; + + should( + () => src.offset.setTargetAtTime(0.5, 0.01, timeConstant), + `src.offset.setTargetAtTime(0.5, 0.01, ${timeConstant})`) + .notThrow(); + should( + () => src.offset.setValueAtTime(0.5, testTime), + `src.offset.setValueAtTime(0.5, ${testTime})`) + .notThrow(); + should( + () => src.offset.linearRampToValueAtTime(1, rampEnd), + `src.offset.linearRampToValueAtTime(1, ${rampEnd})`) + .notThrow(); + + // The reference node that will generate the expected output. We do + // the same automations, except we don't apply the setTarget + // automation. + const refSrc = new ConstantSourceNode(context); + refSrc.connect(merger, 0, 1); + + refSrc.offset.setValueAtTime(0.5, 0); + refSrc.offset.setValueAtTime(0.5, testTime); + refSrc.offset.linearRampToValueAtTime(1, rampEnd); + + src.start(); + refSrc.start(); + + context.startRendering() + .then(audio => { + const actual = audio.getChannelData(0); + const expected = audio.getChannelData(1); + + // Just verify that the actual output matches the expected + // starting a little bit before testTime. + let testFrame = + Math.floor(testTime * context.sampleRate) - 128; + should(actual.slice(testFrame), `output[${testFrame}:]`) + .beCloseToArray( + expected.slice(testFrame), + {relativeThreshold: 4.1724e-6}); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setTargetAtTime-after-event-within-block.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setTargetAtTime-after-event-within-block.html new file mode 100644 index 0000000000..ca02b0db97 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setTargetAtTime-after-event-within-block.html @@ -0,0 +1,99 @@ +<!DOCTYPE html> +<title>Test setTargetAtTime after an event in the same processing block</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> +promise_test(function() { + const bufferSize = 179; + const valueStartOffset = 42; + const targetStartOffset = 53; + const sampleRate = 48000; + const scheduledValue = -0.5; + + var context = new OfflineAudioContext(1, bufferSize, sampleRate); + + var gain = context.createGain(); + gain.gain.setValueAtTime(scheduledValue, valueStartOffset/sampleRate); + gain.gain.setTargetAtTime(scheduledValue, targetStartOffset/sampleRate, + 128/sampleRate); + gain.connect(context.destination); + + // Apply unit DC signal to gain node. + var source = context.createBufferSource(); + source.buffer = + function() { + var buffer = context.createBuffer(1, 1, context.sampleRate); + buffer.getChannelData(0)[0] = 1.0; + return buffer; + }(); + source.loop = true; + source.start(); + source.connect(gain); + + return context.startRendering(). + then(function(buffer) { + assert_equals(buffer.length, bufferSize, "output buffer length"); + var output = buffer.getChannelData(0); + var i = 0; + for (; i < valueStartOffset; ++i) { + // "Its default value is 1." + assert_equals(output[i], 1.0, "default gain at sample " + i); + } + for (; i < buffer.length; ++i) { + // "If the next event (having time T1) after this SetValue event is + // not of type LinearRampToValue or ExponentialRampToValue, then, for + // T0≤t<T1: v(t)=V". + // "Start exponentially approaching the target value at the given time + // with a rate having the given time constant." + // The target is the same value, and so the SetValue value continues. + assert_equals(output[i], scheduledValue, + "scheduled value at sample " + i); + } + }); +}, "setTargetAtTime() after setValueAtTime()"); + +promise_test(async function() { + const bufferSize = 129; + const sampleRate = 16384; + const startSample1 = 125; + const target1 = Math.fround(-1./Math.expm1(-1.)); + // Intentionally testing the second curve before and after the + // rendering quantum boundary. + const startSample2 = startSample1 + 1; + const target2 = 0.; + const timeConstant = 1./sampleRate; + const tolerance = Math.pow(2, -24); // Allow single precision math. + const context = new OfflineAudioContext(1, bufferSize, sampleRate); + + const source = new ConstantSourceNode(context, {offset: 0.}); + source.start(); + source.offset.setTargetAtTime(target1, startSample1/sampleRate, + timeConstant); + source.offset.setTargetAtTime(target2, startSample2/sampleRate, + timeConstant); + source.connect(context.destination); + + const buffer = await context.startRendering(); + + assert_equals(buffer.length, bufferSize, "output buffer length"); + const output = buffer.getChannelData(0); + for (let i = 0; i <= startSample1; ++i) { + assert_equals(output[i], 0., "initial offset at sample " + i); + } + assert_approx_equals( + output[startSample2], + Math.fround(target1 * -Math.expm1(-(startSample2 - startSample1))), + tolerance, + "scheduled value at startSample2"); + assert_approx_equals( + output[startSample2 + 1], + Math.fround(output[startSample2] * Math.exp(-1.)), + tolerance, + "scheduled value at startSample2 + 1"); + assert_approx_equals( + output[startSample2 + 2], + Math.fround(output[startSample2] * Math.exp(-2.)), + tolerance, + "scheduled value at startSample2 + 2"); +}, "setTargetAtTime() after setTargetAtTime()"); +</script> diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html new file mode 100644 index 0000000000..36fde2b996 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html @@ -0,0 +1,48 @@ +<!DOCTYPE html> +<title>Test setValueAtTime with start time not on a block boundary</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> +promise_test(function() { + const bufferSize = 200; + const offset = 65; + const sampleRate = 48000; + const scheduledValue = -2.0; + + var context = new OfflineAudioContext(1, bufferSize, sampleRate); + + var gain = context.createGain(); + gain.gain.setValueAtTime(scheduledValue, offset/sampleRate); + gain.connect(context.destination); + + // Apply unit DC signal to gain node. + var source = context.createBufferSource(); + source.buffer = + function() { + var buffer = context.createBuffer(1, 1, context.sampleRate); + buffer.getChannelData(0)[0] = 1.0; + return buffer; + }(); + source.loop = true; + source.start(); + source.connect(gain); + + return context.startRendering(). + then(function(buffer) { + assert_equals(buffer.length, bufferSize, "output buffer length"); + var output = buffer.getChannelData(0); + var i = 0; + for (; i < offset; ++i) { + // "Its default value is 1." + assert_equals(output[i], 1.0, "default gain at sample " + i); + } + for (; i < buffer.length; ++i) { + // "If there are no more events after this SetValue event, then for + // t≥T0, v(t)=V, where T0 is the startTime parameter and V is the + // value parameter." + assert_equals(output[i], scheduledValue, + "scheduled value at sample " + i); + } + }); +}); +</script> |