summaryrefslogtreecommitdiffstats
path: root/dom/media/webaudio/test/test_bug966247.html
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/media/webaudio/test/test_bug966247.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/webaudio/test/test_bug966247.html')
-rw-r--r--dom/media/webaudio/test/test_bug966247.html46
1 files changed, 46 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_bug966247.html b/dom/media/webaudio/test/test_bug966247.html
new file mode 100644
index 000000000..9224ac2d4
--- /dev/null
+++ b/dom/media/webaudio/test/test_bug966247.html
@@ -0,0 +1,46 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test whether an audio file played with a volume set to 0 plays silence</title>
+ <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<audio preload=none src="ting-48k-1ch.ogg" controls> </audio>
+<script>
+ SimpleTest.waitForExplicitFinish();
+
+ var count = 20;
+
+ function isSilent(b) {
+ for (var i = 0; i < b.length; b++) {
+ if (b[i] != 0.0) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ var a = document.getElementsByTagName("audio")[0];
+ a.volume = 0.0;
+ var ac = new AudioContext();
+ var measn = ac.createMediaElementSource(a);
+ var sp = ac.createScriptProcessor();
+
+ sp.onaudioprocess = function(e) {
+ var inputBuffer = e.inputBuffer.getChannelData(0);
+ ok(isSilent(inputBuffer), "The volume is set to 0, so all the elements of the buffer are supposed to be equal to 0.0");
+ }
+ // Connect the MediaElementAudioSourceNode to the ScriptProcessorNode to check
+ // the audio volume.
+ measn.connect(sp);
+ a.play();
+
+ a.addEventListener("ended", function() {
+ sp.onaudioprocess = null;
+ SimpleTest.finish();
+ });
+
+</script>
+</body>
+</html>