| <DOCTYPE html> |
| <html> |
| <body> |
| <script src="../resources/js-test.js"></script> |
| <script> |
| description("Validate the value returned by AudioContext.getOutputTimestamp()"); |
| jsTestIsAsync = true; |
| |
| const audioContext = new AudioContext(); |
| const gainNode = new GainNode(audioContext, { gain: 0.01 }); |
| const oscillatorNode = new OscillatorNode(audioContext); |
| |
| oscillatorNode.connect(gainNode).connect(audioContext.destination); |
| oscillatorNode.start(); |
| |
| handle = setInterval(() => { |
| if (audioContext.currentTime < 0.100) |
| return; |
| clearInterval(handle); |
| |
| contextTime = audioContext.getOutputTimestamp().contextTime; |
| shouldBeTrue("contextTime > 0.090"); |
| shouldBeTrue("contextTime <= audioContext.currentTime"); |
| finishJSTest(); |
| }, 10); |
| </script> |
| </body> |
| </html> |
