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 |
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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('Basic test for OfflineAudioContext.suspend() and OfflineAudio Context.resume().'); | |
| 12 window.jsTestIsAsync = true; | |
| 13 | |
| 14 var sampleRate = 44100; | |
| 15 var renderDuration = 1; | |
| 16 var renderQuantum = 128; | |
| 17 | |
| 18 var audit = Audit.createTaskRunner(); | |
| 19 | |
| 20 // Task: Calling suspend with no argument or negative time should | |
| 21 // reject the promise. | |
| 22 audit.defineTask('suspend-invalid-argument', function (done) { | |
| 23 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa mpleRate); | |
| 24 | |
| 25 Should('context.suspend()', context.suspend()).beRejected(); | |
| 26 Should('context.suspend(-1.0)', context.suspend(-1.0)).beRejected().then (done); | |
| 27 }); | |
| 28 | |
| 29 // Task: Scheduling a suspend in the past should be rejected. | |
| 30 audit.defineTask('suspend-in-the-past', function (done) { | |
| 31 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa mpleRate); | |
| 32 | |
| 33 context.suspend(0.5).then(function () { | |
| 34 Should('Scheduling a suspend in the past', | |
| 35 context.suspend(context.currentTime - 0.1)).beRejected(); | |
| 36 context.resume(); | |
| 37 }); | |
| 38 | |
| 39 context.startRendering().then(done); | |
| 40 }); | |
| 41 | |
| 42 // Task: Calling multiple suspends at the same rendering quantum should | |
| 43 // reject the promise. | |
| 44 audit.defineTask('identical-suspend-time', function (done) { | |
| 45 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa mpleRate); | |
| 46 | |
| 47 // |suspendTime1| and |suspendTime2| are identical when quantized to | |
| 48 // the render quantum size. | |
| 49 var suspendTime1 = renderQuantum / sampleRate; | |
| 50 var suspendTime2 = (renderQuantum + renderQuantum * 0.5) / sampleRate; | |
|
Raymond Toy
2015/10/16 23:32:35
Is this clearer to write 1.5*renderQuantum?
hongchan
2015/10/19 20:08:12
Done.
| |
| 51 | |
| 52 context.suspend(suspendTime1); | |
| 53 | |
| 54 Should('Calling multiple suspends at the same rendering quantum', | |
| 55 context.suspend(suspendTime2)).beRejected().then(done); | |
| 56 }); | |
| 57 | |
| 58 // Task: Resuming the context before the actual suspension happens. | |
| 59 audit.defineTask('resume-before-suspend', function (done) { | |
| 60 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa mpleRate); | |
| 61 | |
| 62 // A suspend is scheduled at the half. | |
| 63 context.suspend(renderDuration * 0.5).then(done); | |
| 64 | |
| 65 // We have to start rendering to get the time running. | |
| 66 context.startRendering(); | |
| 67 | |
| 68 // Then call resume() immediately after the rendering starts. This | |
| 69 // resume() will be performed before the actual suspension happens. | |
| 70 Should('Resuming before suspend', context.resume()).beRejected(); | |
| 71 }); | |
| 72 | |
| 73 // Task: Calling resume on non-suspended context should reject the promise . | |
| 74 audit.defineTask('resume-without-suspend', function (done) { | |
| 75 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa mpleRate); | |
| 76 | |
| 77 Should('Calling resume on non-suspended context', context.resume()) | |
| 78 .beRejected().then(done); | |
| 79 }); | |
| 80 | |
| 81 audit.defineTask('finish', function (done) { | |
| 82 finishJSTest(); | |
| 83 done(); | |
| 84 }); | |
| 85 | |
| 86 audit.runTasks( | |
| 87 'suspend-invalid-argument', | |
| 88 'suspend-in-the-past', | |
| 89 'identical-suspend-time', | |
| 90 'resume-before-suspend', | |
| 91 'resume-without-suspend', | |
| 92 'finish' | |
| 93 ); | |
| 94 | |
| 95 successfullyParsed = true; | |
| 96 </script> | |
| 97 | |
| 98 </body> | |
| 99 </html> | |
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