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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test ChannelMergerNode</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="text/javascript" src="webaudio.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 gTest = {
+ length: 2048,
+ numberOfChannels: 6,
+ createGraph(context) {
+ var buffers = [];
+ for (var j = 0; j < 6; ++j) {
+ var buffer = context.createBuffer(2, 2048, context.sampleRate);
+ for (var i = 0; i < 2048; ++i) {
+ buffer.getChannelData(0)[i] = Math.sin(440 * 2 * (j + 1) * Math.PI * i / context.sampleRate);
+ // Second channel is silent
+ }
+ buffers.push(buffer);
+ }
+
+ var merger = new ChannelMergerNode(context);
+ is(merger.channelCount, 1, "merger node has 1 input channels");
+ is(merger.channelCountMode, "explicit", "Correct channelCountMode for the merger node");
+ is(merger.channelInterpretation, "speakers", "Correct channelCountInterpretation for the merger node");
+
+ for (var i = 0; i < 6; ++i) {
+ var source = context.createBufferSource();
+ source.buffer = buffers[i];
+ source.connect(merger, 0, i);
+ source.start(0);
+ }
+
+ return merger;
+ },
+ createExpectedBuffers(context) {
+ var expectedBuffer = context.createBuffer(6, 2048, context.sampleRate);
+ for (var i = 0; i < 6; ++i) {
+ for (var j = 0; j < 2048; ++j) {
+ expectedBuffer.getChannelData(i)[j] = 0.5 * Math.sin(440 * 2 * (i + 1) * Math.PI * j / context.sampleRate);
+ }
+ }
+ return expectedBuffer;
+ },
+};
+
+runTest();
+
+</script>
+</pre>
+</body>
+</html>