| Index: third_party/WebKit/LayoutTests/webaudio/Convolver/convolver-cascade.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/Convolver/convolver-cascade.html b/third_party/WebKit/LayoutTests/webaudio/Convolver/convolver-cascade.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..e24e3fcfe7117f67f43001d8b35649faaeacd629
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/webaudio/Convolver/convolver-cascade.html
|
| @@ -0,0 +1,60 @@
|
| +<!doctype html>
|
| +<html>
|
| + <head>
|
| + <title>Test Cascade of Mono Convolvers</title>
|
| + <script src="../../resources/testharness.js"></script>
|
| + <script src="../../resources/testharnessreport.js"></script>
|
| + <script src="../resources/audit-util.js"></script>
|
| + <script src="../resources/audit.js"></script>
|
| + </head>
|
| +
|
| + <body>
|
| + <script>
|
| + let audit = Audit.createTaskRunner();
|
| +
|
| + // Arbitrary sample rate and reasonably short duration
|
| + let sampleRate = 8000;
|
| + let duration = 0.25;
|
| + let renderFrames = duration * sampleRate;
|
| +
|
| + audit.define(
|
| + {label: 'cascade-mono', description: 'Cascaded mono convolvers'},
|
| + (task, should) => {
|
| + // Cascade two convolvers with mono responses and verify that the
|
| + // output is not silent.
|
| + let context = new OfflineAudioContext(1, renderFrames, sampleRate);
|
| +
|
| + let b0 =
|
| + new AudioBuffer({length: 5, sampleRate: context.sampleRate});
|
| + b0.getChannelData(0)[1] = 1;
|
| + let c0 = new ConvolverNode(
|
| + context, {disableNormalization: true, buffer: b0});
|
| +
|
| + let b1 =
|
| + new AudioBuffer({length: 5, sampleRate: context.sampleRate});
|
| + b1.getChannelData(0)[2] = 1;
|
| +
|
| + let c1 = new ConvolverNode(
|
| + context, {disableNormalization: true, buffer: b1});
|
| +
|
| + let src = new OscillatorNode(context);
|
| +
|
| + src.connect(c0).connect(c1).connect(context.destination);
|
| +
|
| + src.start();
|
| +
|
| + context.startRendering()
|
| + .then(audioBuffer => {
|
| + // Just verify the output is not silent
|
| + let audio = audioBuffer.getChannelData(0);
|
| +
|
| + should(audio, 'Output of cascaded mono convolvers')
|
| + .notBeConstantValueOf(0);
|
| + })
|
| + .then(() => task.done());
|
| + });
|
| +
|
| + audit.run();
|
| + </script>
|
| + </body>
|
| +</html>
|
|
|