| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>A recorded muted audio track should produce silence</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <video id="video1" controls></video> |
| <script> |
| function waitFor(duration) |
| { |
| return new Promise((resolve) => setTimeout(resolve, duration)); |
| } |
| |
| promise_test(async (test) => { |
| const stream = await navigator.mediaDevices.getUserMedia({ audio: true, video: true }); |
| |
| const recorder = new MediaRecorder(stream); |
| const dataPromise = new Promise(resolve => recorder.ondataavailable = (e) => resolve(e.data)); |
| |
| const startPromise = new Promise(resolve => recorder.onstart = resolve); |
| recorder.start(); |
| await startPromise; |
| |
| setTimeout(() => recorder.pause(), 50); |
| setTimeout(() => recorder.resume(), 950); |
| |
| await waitFor(2000); |
| recorder.stop(); |
| const blob = await dataPromise; |
| |
| const url = URL.createObjectURL(blob); |
| video1.src = url; |
| await video1.play(); |
| |
| assert_less_than(video1.duration, 1.5); |
| |
| URL.revokeObjectURL(url); |
| }, "Pausing and resuming the recording should impact the video duration"); |
| |
| promise_test(async (test) => { |
| const stream = await navigator.mediaDevices.getUserMedia({ audio: true, video: true }); |
| |
| const recorder = new MediaRecorder(stream); |
| const dataPromise = new Promise(resolve => recorder.ondataavailable = (e) => resolve(e.data)); |
| |
| const startPromise = new Promise(resolve => recorder.onstart = resolve); |
| recorder.start(); |
| await startPromise; |
| |
| await waitFor(1000); |
| |
| const pausePromise = new Promise(resolve => recorder.onpause = resolve); |
| recorder.pause(); |
| await pausePromise; |
| |
| recorder.requestData(); |
| |
| const blob = await dataPromise; |
| assert_greater_than(blob.size, 1400); |
| }, "Calling requestData once after pausing should lead to more than header data"); |
| |
| |
| </script> |
| </body> |
| </html> |
