зеркало из https://github.com/mozilla/gecko-dev.git
59 строки
1.4 KiB
HTML
59 строки
1.4 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<meta charset=utf-8>
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<head>
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<title>Test that we can decode 4 channel wave file in webaudio, but not in <audio></title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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var filename = "audio-quad.wav";
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SimpleTest.waitForExplicitFinish();
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function finishTest(a) {
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if (a) {
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a = null;
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SimpleTest.finish();
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}
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}
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function decodeUsingAudioElement() {
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var a = new Audio();
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a.addEventListener("error", function() {
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ok(false, "Error loading metadata");
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finishTest(a);
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});
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a.addEventListener("loadedmetadata", function() {
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ok(true, "Metadata Loaded");
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finishTest(a);
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});
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a.src = filename;
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a.load();
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}
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addLoadEvent(function() {
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var xhr = new XMLHttpRequest();
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xhr.open("GET", filename);
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xhr.responseType = "arraybuffer";
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xhr.onload = function() {
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var context = new AudioContext();
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context.decodeAudioData(xhr.response, function(b) {
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ok(true, "Decoding of a wave file with four channels succeded.");
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is(b.numberOfChannels, 4, "The AudioBuffer should have 4 channels.");
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decodeUsingAudioElement();
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}, function() {
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ok(false, "Decoding of a wave file with four channels failed.");
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decodeUsingAudioElement();
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});
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};
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xhr.send(null);
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});
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</script>
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</pre>
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</body>
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</html>
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