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| 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/audit-util.js"></script> | |
| 7 <script src="resources/audio-testing.js"></script> | |
| 8 <title>AudioParam with Huge End Time</title> | |
| 9 </head> | |
| 10 | |
| 11 <body> | |
| 12 <script> | |
| 13 description("Test AudioParam with Huge Time Value") | |
| 14 window.jsTestIsAsync = true; | |
| 15 | |
| 16 var sampleRate = 48000; | |
| 17 // Render for some small (but fairly arbitrary) time. | |
| 18 var renderDuration = 0.125; | |
| 19 // Any huge time value that won't fit in a size_t (2^64 on a 64-bit machin
e). | |
| 20 var largeTime = 1e300; | |
| 21 | |
| 22 var audit = Audit.createTaskRunner(); | |
| 23 | |
| 24 // See crbug.com/582701. Create an audioparam with a huge end time and ve
rify that to | |
| 25 // automation is run. We don't care about the actual results, just that i
t runs. | |
| 26 | |
| 27 // Test linear ramp with huge end time | |
| 28 audit.defineTask("linearRamp", function (done) { | |
| 29 var graph = createGraph(); | |
| 30 graph.gain.gain.linearRampToValueAtTime(0.1, largeTime); | |
| 31 | |
| 32 graph.source.start(); | |
| 33 graph.context.startRendering().then(function (buffer) { | |
| 34 testPassed("linearRampToValue(0.1, " + largeTime + ") successfully ren
dered."); | |
| 35 }).then(done); | |
| 36 }); | |
| 37 | |
| 38 // Test exponential ramp with huge end time | |
| 39 audit.defineTask("exponentialRamp", function (done) { | |
| 40 var graph = createGraph(); | |
| 41 graph.gain.gain.exponentialRampToValueAtTime(.1, largeTime); | |
| 42 | |
| 43 graph.source.start(); | |
| 44 graph.context.startRendering().then(function (buffer) { | |
| 45 testPassed("exponentialRampToValue(0.1, " + largeTime + ") successfull
y rendered."); | |
| 46 }).then(done); | |
| 47 }); | |
| 48 | |
| 49 audit.defineTask("finish", function (done) { | |
| 50 finishJSTest(); | |
| 51 done(); | |
| 52 }); | |
| 53 | |
| 54 audit.runTasks(); | |
| 55 | |
| 56 // Create the graph and return the context, the source, and the gain node. | |
| 57 function createGraph() { | |
| 58 var context = new OfflineAudioContext(1, renderDuration * sampleRate, sa
mpleRate); | |
| 59 var src = context.createBufferSource(); | |
| 60 src.buffer = createConstantBuffer(context, 1, 1); | |
| 61 src.loop = true; | |
| 62 var gain = context.createGain(); | |
| 63 src.connect(gain); | |
| 64 gain.connect(context.destination); | |
| 65 gain.gain.setValueAtTime(1, 0.1 / sampleRate); | |
| 66 | |
| 67 return { | |
| 68 context: context, | |
| 69 gain: gain, | |
| 70 source: src | |
| 71 }; | |
| 72 } | |
| 73 | |
| 74 </script> | |
| 75 </body> | |
| 76 </html> | |
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Chromium Code Reviews
Issue 2581463002:
Refactor WebAudio test directory (Closed)
