summaryrefslogtreecommitdiffstats
path: root/dom/media/webaudio/test/test_nodeToParamConnection.html
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--dom/media/webaudio/test/test_nodeToParamConnection.html60
1 files changed, 60 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_nodeToParamConnection.html b/dom/media/webaudio/test/test_nodeToParamConnection.html
new file mode 100644
index 0000000000..8a77e7d0a2
--- /dev/null
+++ b/dom/media/webaudio/test/test_nodeToParamConnection.html
@@ -0,0 +1,60 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test connecting an AudioNode to an AudioParam</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,
+ createGraph(context) {
+ var sourceBuffer = context.createBuffer(2, 2048, context.sampleRate);
+ for (var i = 0; i < 2048; ++i) {
+ sourceBuffer.getChannelData(0)[i] = 1;
+ sourceBuffer.getChannelData(1)[i] = -1;
+ }
+
+ var destination = context.destination;
+
+ var paramSource = context.createBufferSource();
+ paramSource.buffer = this.buffer;
+
+ var source = context.createBufferSource();
+ source.buffer = sourceBuffer;
+
+ var gain = context.createGain();
+
+ paramSource.connect(gain.gain);
+ source.connect(gain);
+
+ paramSource.start(0);
+ source.start(0);
+ return gain;
+ },
+ createExpectedBuffers(context) {
+ this.buffer = context.createBuffer(2, 2048, context.sampleRate);
+ for (var i = 0; i < 2048; ++i) {
+ for (var j = 0; j < 2; ++j) {
+ this.buffer.getChannelData(j)[i] = Math.sin(440 * 2 * (j + 1) * Math.PI * i / context.sampleRate);
+ }
+ }
+ var expectedBuffer = context.createBuffer(2, 2048, context.sampleRate);
+ for (var i = 0; i < 2048; ++i) {
+ expectedBuffer.getChannelData(0)[i] = 1 + (this.buffer.getChannelData(0)[i] + this.buffer.getChannelData(1)[i]) / 2;
+ expectedBuffer.getChannelData(1)[i] = -(1 + (this.buffer.getChannelData(0)[i] + this.buffer.getChannelData(1)[i]) / 2);
+ }
+ return expectedBuffer;
+ },
+};
+
+runTest();
+
+</script>
+</pre>
+</body>
+</html>