| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <script src="../resources/js-test.js"></script> |
| <script src="resources/compatibility.js"></script> |
| <script src="resources/audio-testing.js"></script> |
| </head> |
| |
| <body> |
| |
| <div id="description"></div> |
| <div id="console"></div> |
| |
| <script> |
| description("This test verifies whether down mixing from stereo to mono will cause assertion error."); |
| |
| var sampleRate = 44100.0; |
| var renderLengthSeconds = 0.1; |
| |
| var context; |
| var toneBuffer; |
| var bufferSource; |
| |
| function createDataBuffer(context, lengthInSeconds) { |
| var audioBuffer = context.createBuffer(2, lengthInSeconds * sampleRate, sampleRate); |
| |
| var n = audioBuffer.length; |
| var data0 = audioBuffer.getChannelData(0); |
| var data1 = audioBuffer.getChannelData(1); |
| |
| for (var i = 0; i < n; ++i) { |
| data0[i] = 1.0; |
| data1[i] = 1.0; |
| } |
| |
| return audioBuffer; |
| } |
| |
| function testFinished() { |
| testPassed("Test no ASSERT error."); |
| finishJSTest(); |
| } |
| |
| function runTest() { |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| window.jsTestIsAsync = true; |
| |
| // Create offline audio context, the destination is mono. |
| context = new OfflineAudioContext(1, sampleRate * renderLengthSeconds, sampleRate); |
| // Create a stereo AudioBuffer. |
| toneBuffer = createDataBuffer(context, renderLengthSeconds); |
| |
| bufferSource = context.createBufferSource(); |
| bufferSource.buffer = toneBuffer; |
| |
| bufferSource.connect(context.destination); |
| |
| bufferSource.start(0); |
| |
| context.oncomplete = testFinished; |
| context.startRendering(); |
| } |
| |
| |
| runTest(); |
| |
| </script> |
| |
| </body> |
| </html> |
