Chromium Code Reviews Chromium Code Reviews
Issue 1405413004:
Implement suspend() and resume() for OfflineAudioContext (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master| OLD | NEW |
|---|---|
| (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 event handler callback from OfflineAudioContext.resume() and OfflineAudioContext.suspend().'); | |
| 12 window.jsTestIsAsync = true; | |
| 13 | |
| 14 var context; | |
| 15 var renderQuantum = 128; | |
| 16 | |
| 17 // The sample rate is multiple of the rendering quantum, so suspension | |
| 18 // times in the test fall in to the render quantum boundary. Although | |
| 19 // this is not necessary, it is easier to understand the test. | |
| 20 var sampleRate = renderQuantum * 100; | |
| 21 | |
| 22 var renderDuration = 2; | |
| 23 var scheduledSuspendTime = 0; | |
| 24 | |
| 25 // With the sample rate setting above, this ensures suspension time fall | |
| 26 // in to the render quantum boundary. | |
|
Raymond Toy
2015/10/21 18:22:45
"fall in to the" -> "will fall on the"
hongchan
2015/10/22 18:23:48
Done.
| |
| 27 var suspendInterval = 0.25; | |
| 28 | |
| 29 function runTest() { | |
| 30 context = new OfflineAudioContext(1, sampleRate * renderDuration, sample Rate); | |
| 31 | |
| 32 context.onstatechange = function () { | |
| 33 if (context.state === 'suspended' && context.currentTime === scheduled SuspendTime) { | |
| 34 | |
| 35 testPassed('onstatechange event handler: context is suspended at ' + | |
| 36 scheduledSuspendTime + ' second(s).'); | |
| 37 | |
| 38 scheduledSuspendTime = context.currentTime + suspendInterval; | |
| 39 | |
| 40 // Scheduling a suspend before the render duration should pass. | |
| 41 if (scheduledSuspendTime < renderDuration) { | |
| 42 context.suspend(scheduledSuspendTime); | |
| 43 testPassed('A new suspend has been scheduled at ' + | |
| 44 scheduledSuspendTime + ' second(s).'); | |
| 45 } | |
| 46 | |
| 47 // Scheduling a suspend exactly at the render duration should be | |
| 48 // rejected. | |
| 49 if (scheduledSuspendTime === renderDuration) { | |
| 50 Should('Scheduling at ' + renderDuration + ' seconds', | |
| 51 context.suspend(scheduledSuspendTime)).beRejected(); | |
| 52 } | |
| 53 | |
| 54 context.resume(); | |
| 55 } | |
| 56 }; | |
| 57 | |
| 58 // This test is for verifying all the event handlers on OAC and that is | |
| 59 // why 'oncomplete' is used here. | |
| 60 context.oncomplete = function () { | |
| 61 Should('oncomplete event handler: context.state', context.state).beEqu alTo('closed'); | |
| 62 finishJSTest(); | |
| 63 }; | |
| 64 | |
| 65 // Schedule the first suspension. | |
| 66 context.suspend(scheduledSuspendTime); | |
| 67 testPassed('A new suspend has been scheduled at ' + scheduledSuspendTime + ' second(s).'); | |
| 68 | |
| 69 context.startRendering(); | |
| 70 } | |
| 71 | |
| 72 runTest(); | |
| 73 successfullyParsed = true; | |
| 74 </script> | |
| 75 | |
| 76 </body> | |
| 77 </html> | |
| OLD | NEW |
