| Index: third_party/WebKit/ManualTests/webaudio/audiooutputtimestamp.html
|
| diff --git a/third_party/WebKit/ManualTests/webaudio/audiooutputtimestamp.html b/third_party/WebKit/ManualTests/webaudio/audiooutputtimestamp.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..ae26ec35c2cd71cabd3b0b97fd91a22d5eec0a18
|
| --- /dev/null
|
| +++ b/third_party/WebKit/ManualTests/webaudio/audiooutputtimestamp.html
|
| @@ -0,0 +1,73 @@
|
| +<!doctype html>
|
| +<html>
|
| + <head>
|
| + <title>Test AudioContext.getOutputTimestamp() method</title>
|
| + <style type="text/css">
|
| + body {
|
| + margin: 2em;
|
| + }
|
| + .manual-test-ui {
|
| + font-family: Arial;
|
| + padding: 1em;
|
| + border: 1px solid #999;
|
| + }
|
| + .manual-test-ui button {
|
| + padding: 1em;
|
| + font-size: 1em;
|
| + }
|
| + .manual-test-ui div {
|
| + padding: 10px;
|
| + font-size: 1.5em;
|
| + }
|
| + </style>
|
| + </head>
|
| +
|
| + <body>
|
| + <h1>Test AudioContext.getOutputTimestamp() method</h1>
|
| +
|
| + <p>Tests the values returned from AudioContext.getOutputTimestamp()</p>
|
| +
|
| + <p>Press "Start" to run the test. You should hear a sine tone.</p>
|
| +
|
| + <p>Press "Refresh" to fetch the fresh output audio timestamp values
|
| + and compare them to 'AudioContext.currentTime' and 'Performance.now()'. </p>
|
| +
|
| + <p><b>Note: </b> The "AudioTimestamp" Runtime Enabled Feature must be enabled:
|
| + i.e. use '--enable-blink-features=AudioTimestamp' in command-line switches for
|
| + chrome/content_shell.</p>
|
| +
|
| + <div class="manual-test-ui">
|
| + <div id="audioTime"></div>
|
| + <div id="performanceTime"></div>
|
| + <div id="timestampContextTime"></div>
|
| + <div id="timestampPerformanceTime"></div>
|
| +
|
| + <button id="startButton" onclick="start()">Start</button>
|
| + <button id="valuesButton" onclick="refreshValues()">Refresh Values</button>
|
| + <button onclick="context.suspend()">Suspend</button>
|
| + <button onclick="context.resume()">Resume</button>
|
| + </div>
|
| +
|
| + <script type="text/javascript">
|
| + var context = new AudioContext();
|
| +
|
| + refreshValues();
|
| +
|
| + function start() {
|
| + document.querySelector('#startButton').disabled = true;
|
| + let oscillator = context.createOscillator();
|
| + oscillator.connect(context.destination);
|
| + oscillator.start();
|
| + }
|
| +
|
| + function refreshValues() {
|
| + document.querySelector("#audioTime").innerHTML = "context.currentTime: " + context.currentTime;
|
| + document.querySelector("#performanceTime").innerHTML = "performance.now(): " + performance.now();
|
| +
|
| + let timestamp = context.getOutputTimestamp();
|
| + document.querySelector("#timestampContextTime").innerHTML = "timestamp audio: " + timestamp.contextTime;
|
| + document.querySelector("#timestampPerformanceTime").innerHTML = "timestamp performance: " + timestamp.performanceTime;
|
| + }
|
| + </script>
|
| + </body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 2060833002:
Implementation of 'AudioContext.getOutputTimestamp' method (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master