| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>MediaStream Recorder Cros Test (w/ MediaSource)</title> |
| </head> |
| <body> |
| <div>MediaRecorder HW-encode-used test.</div> |
| <video id="video" autoplay></video> |
| </body> |
| <script> |
| |
| 'use strict'; |
| |
| var testProgress = 0; |
| |
| const DEFAULT_CONSTRAINTS = {audio: true, video: true}; |
| |
| function createAndStartMediaRecorder(stream, mimeType) { |
| return new Promise(function(resolve, reject) { |
| document.getElementById('video').srcObject = stream; |
| var recorder = new MediaRecorder(stream, {'mimeType' : mimeType}); |
| console.log('Recorder object created.'); |
| recorder.start(1); |
| resolve(recorder); |
| }); |
| } |
| |
| // Creates a MediaRecorder and starts recording. Caller can check |
| // the generated histograms to verify whether HW encode is used. |
| function startRecording(codec) { |
| var mimeType = 'video/webm; codecs=' + codec; |
| var videoSize = 0; |
| var emptyBlobs = 0; |
| var timeStamps = []; |
| // This records from a fake media device. |
| navigator.mediaDevices.getUserMedia(DEFAULT_CONSTRAINTS) |
| .then(function(stream) { |
| return createAndStartMediaRecorder(stream, mimeType); |
| }) |
| .then(function(recorder) { |
| recorder.ondataavailable = function(event) { |
| if (event.data.size > 0) |
| testProgress = 1; |
| }; |
| }); |
| } |
| |
| </script> |
| </body> |
| </html> |
