third_party/WebKit/ManualTests/webaudio/audiooutputtimestamp.html - Issue 2060833002: Implementation of 'AudioContext.getOutputTimestamp' method

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Issue 2060833002: Implementation of 'AudioContext.getOutputTimestamp' method (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: rebased 'global-interface-listing-expected' layout test results Created 4 years, 1 month ago

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« content/renderer/media/renderer_webaudiodevice_impl.cc ('K') | « third_party/WebKit/LayoutTests/webexposed/global-interface-listing-expected.txt ('k') | third_party/WebKit/Source/modules/modules_idl_files.gni » ('j') | third_party/WebKit/Source/modules/webaudio/AudioTimestamp.idl » ('J')
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	1 <!doctype html>

	2 <html>

	3 <head>

	4 <title>Test AudioContext.getOutputTimestamp() method</title>

	5 <style type="text/css">

	6 body {

	7 margin: 2em;

	8 }

	9 .manual-test-ui {

	10 font-family: Arial;

	11 padding: 1em;

	12 border: 1px solid #999;

	13 }

	14 .manual-test-ui button {

	15 padding: 1em;

	16 font-size: 1em;

	17 }

	18 .manual-test-ui div {

	19 padding: 10px;

	20 font-size: 1.5em;

	21 }

	22 </style>

	23 </head>

	24

	25 <body>

	26 <h1>Test AudioContext.getOutputTimestamp() method</h1>

	27

	28 <p>Tests the values returned from AudioContext.getOutputTimestamp()</p>

	29

	30 <p>Press "Start" to run the test. You should hear a sine tone.</p>

	31

	32 <p>Press "Refresh" to fetch the fresh output audio timestamp values

	33 and compare them to 'AudioContext.currentTime' and 'Performance.now()'. </ p>
	Raymond Toy 2016/11/04 17:51:39 Please give some indication of what the expected r Please give some indication of what the expected results should be. In 6 months, no one will remember what the output should be and thus won't know if this is working or not. Mikhail 2016/11/28 15:15:59 Done. Show quoted text On 2016/11/04 17:51:39, Raymond Toy wrote: > Please give some indication of what the expected results should be. In 6 months, > no one will remember what the output should be and thus won't know if this is > working or not. Done.
	34

	35 <p><b>Note: </b> The "AudioTimestamp" Runtime Enabled Feature must be enable d:

	36 i.e. use '--enable-blink-features=AudioTimestamp' in command-line switches for

	37 chrome/content_shell.</p>

	38

	39 <div class="manual-test-ui">

	40 <div id="audioTime"></div>

	41 <div id="performanceTime"></div>

	42 <div id="timestampContextTime"></div>

	43 <div id="timestampPerformanceTime"></div>

	44

	45 <button id="startButton" onclick="start()">Start</button>

	46 <button id="valuesButton" onclick="refreshValues()">Refresh Values</button >

	47 <button onclick="context.suspend()">Suspend</button>

	48 <button onclick="context.resume()">Resume</button>

	49 </div>

	50

	51 <script type="text/javascript">

	52 var context = new AudioContext();

	53

	54 refreshValues();

	55

	56 function start() {

	57 document.querySelector('#startButton').disabled = true;

	58 let oscillator = context.createOscillator();

	59 oscillator.connect(context.destination);

	60 oscillator.start();

	61 }

	62

	63 function refreshValues() {

	64 document.querySelector("#audioTime").innerHTML = "context.currentTime: " + context.currentTime;

	65 document.querySelector("#performanceTime").innerHTML = "performance.now( ): " + performance.now();

	66

	67 let timestamp = context.getOutputTimestamp();

	68 document.querySelector("#timestampContextTime").innerHTML = "timestamp a udio: " + timestamp.contextTime;

	69 document.querySelector("#timestampPerformanceTime").innerHTML = "timesta mp performance: " + timestamp.performanceTime;

	70 }

	71 </script>

	72 </body>

	73 </html>

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