summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/webaudio/the-audio-api/the-convolvernode-interface/convolver-cascade.html
diff options
context:
space:
mode:
Diffstat (limited to 'testing/web-platform/tests/webaudio/the-audio-api/the-convolvernode-interface/convolver-cascade.html')
-rw-r--r--testing/web-platform/tests/webaudio/the-audio-api/the-convolvernode-interface/convolver-cascade.html61
1 files changed, 61 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-convolvernode-interface/convolver-cascade.html b/testing/web-platform/tests/webaudio/the-audio-api/the-convolvernode-interface/convolver-cascade.html
new file mode 100644
index 0000000000..20bdfbdf4e
--- /dev/null
+++ b/testing/web-platform/tests/webaudio/the-audio-api/the-convolvernode-interface/convolver-cascade.html
@@ -0,0 +1,61 @@
+<!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="/webaudio/resources/audit-util.js"></script>
+ <script src="/webaudio/resources/audit.js"></script>
+ </head>
+ <body>
+ <script id="layout-test-code">
+ 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>