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| (Empty) | |
| 1 <!doctype html> |
| 2 <html> |
| 3 <head> |
| 4 <script src="../resources/js-test.js"></script> |
| 5 <script src="resources/compatibility.js"></script> |
| 6 <script src="resources/audio-testing.js"></script> |
| 7 </head> |
| 8 |
| 9 <body> |
| 10 <script> |
| 11 description('Test promise resolution of OfflineAudioContext.resume() and O
fflineAudioContext.suspend().'); |
| 12 window.jsTestIsAsync = true; |
| 13 |
| 14 var context; |
| 15 |
| 16 // The sample rate is multiple of the rendering quantum, so suspension |
| 17 // times fall in to the render quantum boundary. |
| 18 var renderQuantum = 128; |
| 19 |
| 20 var sampleRate = renderQuantum * 100; |
| 21 var renderDuration = 2; |
| 22 var scheduledSuspendTime = 0; |
| 23 |
| 24 // With the sample rate setting above, this ensures suspension time fall |
| 25 // in to the render quantum boundary. |
| 26 var suspendInterval = 0.25; |
| 27 |
| 28 context = new OfflineAudioContext(1, sampleRate * renderDuration, sampleRa
te); |
| 29 |
| 30 function onSuspended() { |
| 31 if (context.state === 'suspended' && context.currentTime === scheduledSu
spendTime) { |
| 32 |
| 33 testPassed('suspend promise resolved: context is suspended at ' + |
| 34 scheduledSuspendTime + ' second(s).'); |
| 35 |
| 36 scheduledSuspendTime = context.currentTime + suspendInterval; |
| 37 |
| 38 // Scheduling a suspend before the render duration should pass. |
| 39 if (scheduledSuspendTime < renderDuration) { |
| 40 context.suspend(scheduledSuspendTime).then(onSuspended); |
| 41 testPassed('A new suspend has been scheduled at ' + |
| 42 scheduledSuspendTime + ' second(s).'); |
| 43 } |
| 44 |
| 45 // Scheduling a suspend exactly at the render duration should be |
| 46 // rejected. |
| 47 if (scheduledSuspendTime === renderDuration) { |
| 48 Should('Scheduling at ' + renderDuration + ' seconds', |
| 49 context.suspend(scheduledSuspendTime)).beRejected(); |
| 50 } |
| 51 |
| 52 context.resume(); |
| 53 } |
| 54 } |
| 55 |
| 56 // Schedule the first suspension. |
| 57 context.suspend(scheduledSuspendTime).then(onSuspended); |
| 58 testPassed('A new suspend has been scheduled at ' + scheduledSuspendTime +
' second(s).'); |
| 59 |
| 60 context.startRendering().then(function () { |
| 61 Should('Promise context.state', context.state).beEqualTo('closed'); |
| 62 }).then(finishJSTest); |
| 63 |
| 64 successfullyParsed = true; |
| 65 </script> |
| 66 |
| 67 </body> |
| 68 </html> |
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Chromium Code Reviews
Issue 1405413004:
Implement suspend() and resume() for OfflineAudioContext (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master