| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| Test Setting of channelCountMode and channelInterpretation |
| </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"> |
| // Fairly arbitrary sample rate and number of frames, except the number of |
| // frames should be more than a few render quantums. |
| let sampleRate = 16000; |
| let renderFrames = 10 * 128; |
| |
| let audit = Audit.createTaskRunner(); |
| |
| audit.define('interp', (task, should) => { |
| let context = new OfflineAudioContext(1, renderFrames, sampleRate); |
| let node = context.createGain(); |
| |
| // Set a new interpretation and verify that it changed. |
| node.channelInterpretation = 'discrete'; |
| let value = node.channelInterpretation; |
| should(value, 'node.channelInterpretation').beEqualTo('discrete'); |
| node.connect(context.destination); |
| |
| context.startRendering() |
| .then(function(buffer) { |
| // After rendering, the value should have been changed. |
| should( |
| node.channelInterpretation, |
| 'After rendering node.channelInterpretation') |
| .beEqualTo('discrete'); |
| }) |
| .then(() => task.done()); |
| }); |
| |
| audit.define('mode', (task, should) => { |
| let context = new OfflineAudioContext(1, renderFrames, sampleRate); |
| let node = context.createGain(); |
| |
| // Set a new mode and verify that it changed. |
| node.channelCountMode = 'explicit'; |
| let value = node.channelCountMode; |
| should(value, 'node.channelCountMode').beEqualTo('explicit'); |
| node.connect(context.destination); |
| |
| context.startRendering() |
| .then(function(buffer) { |
| // After rendering, the value should have been changed. |
| should( |
| node.channelCountMode, |
| 'After rendering node.channelCountMode') |
| .beEqualTo('explicit'); |
| }) |
| .then(() => task.done()); |
| }); |
| |
| audit.run(); |
| </script> |
| </body> |
| </html> |
