| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| Test if MediaElementAudioSourceNode works for cross-origin redirects with |
| "cors" request mode. |
| </title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/webaudio/resources/audit.js"></script> |
| <script src="/common/get-host-info.sub.js"></script> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| const audit = Audit.createTaskRunner(); |
| |
| setup(() => { |
| const context = new AudioContext(); |
| context.suspend(); |
| |
| const host_info = get_host_info(); |
| const audioElement = document.createElement('audio'); |
| audioElement.loop = true; |
| audioElement.crossOrigin = 'anonymous'; |
| const wav = |
| host_info.HTTPS_ORIGIN + '/webaudio/resources/4ch-440.wav?' + |
| 'pipe=header(access-control-allow-origin,*)'; |
| audioElement.src = |
| host_info.HTTPS_REMOTE_ORIGIN + |
| '/fetch/api/resources/redirect.py?location=' + |
| encodeURIComponent(wav); |
| let source; |
| let workletRecorder; |
| |
| audit.define( |
| {label: 'setting-up-graph'}, |
| (task, should) => { |
| source = new MediaElementAudioSourceNode(context, { |
| mediaElement: audioElement |
| }); |
| workletRecorder = new AudioWorkletNode( |
| context, 'recorder-processor', {channelCount: 4}); |
| source.connect(workletRecorder).connect(context.destination); |
| task.done(); |
| }); |
| |
| // The recorded data from MESN must be non-zero. The source file contains |
| // 4 channels of sine wave. |
| audit.define( |
| {label: 'start-playback-and-capture'}, |
| (task, should) => { |
| workletRecorder.port.onmessage = (event) => { |
| if (event.data.type === 'recordfinished') { |
| for (let i = 0; i < event.data.recordBuffer.length; ++i) { |
| const channelData = event.data.recordBuffer[i]; |
| should(channelData, `Recorded channel #${i}`) |
| .notBeConstantValueOf(0); |
| } |
| } |
| |
| task.done(); |
| }; |
| |
| context.resume(); |
| audioElement.play(); |
| }); |
| |
| Promise.all([ |
| context.audioWorklet.addModule('/webaudio/js/worklet-recorder.js') |
| ]).then(() => { |
| audit.run(); |
| }); |
| }); |
| </script> |
| </body> |
| </html> |
