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 |
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index 0000000000000000000000000000000000000000..e24e3fcfe7117f67f43001d8b35649faaeacd629 |
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+++ b/third_party/WebKit/LayoutTests/webaudio/Convolver/convolver-cascade.html |
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+<!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> |