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<!DOCTYPE HTML>
<html>
<meta charset=utf-8>
<head>
<title>Test that we can decode multichannel file with webaudio and <audio></title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
var testcases = [
{
filename: "audio-quad.wav",
channels: 4
},
{
filename: "8kHz-320kbps-6ch.aac",
channels: 6
}
];
SimpleTest.waitForExplicitFinish();
function decodeUsingAudioElement(filename, resolve) {
var a = new Audio();
a.addEventListener("error", function() {
ok(false, "Error loading metadata");
resolve();
});
a.addEventListener("loadedmetadata", function() {
ok(true, "Metadata Loaded");
resolve();
});
a.src = filename;
a.load();
}
function testOne({filename, channels}) {
return new Promise(resolve => {
var xhr = new XMLHttpRequest();
xhr.open("GET", filename);
xhr.responseType = "arraybuffer";
xhr.onload = function() {
var context = new AudioContext();
context.decodeAudioData(xhr.response, function(b) {
ok(true, "Decoding of a wave file with four channels succeded.");
is(b.numberOfChannels,
channels,
`The AudioBuffer decoded from ${filename} should have ${channels} channels.`);
decodeUsingAudioElement(filename, resolve);
}, function() {
ok(false, `Decoding ${filename} failed)`);
decodeUsingAudioElement(filename, resolve);
});
};
xhr.send(null);
});
}
async function runTest() {
for (var testcase of testcases) {
await testOne(testcase);
}
SimpleTest.finish();
}
addLoadEvent(runTest);
</script>
</pre>
</body>
</html>
|
