content/media/webaudio/test/test_mediaStreamAudioSourceNode.html@b8a032363ba2 (annotated)
content/media/webaudio/test/test_mediaStreamAudioSourceNode.html
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | <!DOCTYPE HTML> |
| michael@0 | 2 | <html> |
| michael@0 | 3 | <meta charset="utf-8"> |
| michael@0 | 4 | <head> |
| michael@0 | 5 | <title>Test MediaStreamAudioSourceNode processing is correct</title> |
| michael@0 | 6 | <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 7 | <script type="text/javascript" src="webaudio.js"></script> |
| michael@0 | 8 | <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> |
| michael@0 | 9 | </head> |
| michael@0 | 10 | <body> |
| michael@0 | 11 | <pre id="test"> |
| michael@0 | 12 | <script class="testbody" type="text/javascript"> |
| michael@0 | 13 | |
| michael@0 | 14 | function createBuffer(context, delay) { |
| michael@0 | 15 | var buffer = context.createBuffer(2, 2048, context.sampleRate); |
| michael@0 | 16 | for (var i = 0; i < 2048 - delay; ++i) { |
| michael@0 | 17 | buffer.getChannelData(0)[i + delay] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate); |
| michael@0 | 18 | buffer.getChannelData(1)[i + delay] = -buffer.getChannelData(0)[i + delay]; |
| michael@0 | 19 | } |
| michael@0 | 20 | return buffer; |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | var gTest = { |
| michael@0 | 24 | length: 2048, |
| michael@0 | 25 | skipOfflineContextTests: true, |
| michael@0 | 26 | createGraph: function(context) { |
| michael@0 | 27 | var sourceGraph = new AudioContext(); |
| michael@0 | 28 | var source = sourceGraph.createBufferSource(); |
| michael@0 | 29 | source.buffer = createBuffer(context, 0); |
| michael@0 | 30 | var dest = sourceGraph.createMediaStreamDestination(); |
| michael@0 | 31 | source.connect(dest); |
| michael@0 | 32 | source.start(0); |
| michael@0 | 33 | |
| michael@0 | 34 | var mediaStreamSource = context.createMediaStreamSource(dest.stream); |
| michael@0 | 35 | // channelCount and channelCountMode should have no effect |
| michael@0 | 36 | mediaStreamSource.channelCount = 1; |
| michael@0 | 37 | mediaStreamSource.channelCountMode = "explicit"; |
| michael@0 | 38 | return mediaStreamSource; |
| michael@0 | 39 | }, |
| michael@0 | 40 | createExpectedBuffers: function(context) { |
| michael@0 | 41 | return createBuffer(context, 1); |
| michael@0 | 42 | }, |
| michael@0 | 43 | }; |
| michael@0 | 44 | |
| michael@0 | 45 | runTest(); |
| michael@0 | 46 | |
| michael@0 | 47 | </script> |
| michael@0 | 48 | </pre> |
| michael@0 | 49 | </body> |
| michael@0 | 50 | </html> |
