Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-11-25 13:51:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

test for bug 1213313 r=padenot

Browse Source 
MozReview-Commit-ID: 6CU9AgW8dZx

--HG--
extra : rebase_source : 75ffbade151f1fb232e8e7b6d5239ba3be35e3bb
This commit is contained in:
Karl Tomlinson 2016-06-22 10:16:32 +12:00
parent 470d8c9d1d
commit 1ea1e941eb
2 changed files with 60 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
testing/web-platform/meta/MANIFEST.json
View File

@ -36389,6 +36389,12 @@
"url": "/editing/run/multitest.html"
}
],
"webaudio/the-audio-api/the-audioparam-interface/setTargetAtTime-after-event-within-block.html": [
{
"path": "webaudio/the-audio-api/the-audioparam-interface/setTargetAtTime-after-event-within-block.html",
"url": "/webaudio/the-audio-api/the-audioparam-interface/setTargetAtTime-after-event-within-block.html"
}
],
"webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html": [
{
"path": "webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html",

54
testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setTargetAtTime-after-event-within-block.html Normal file
View File

@ -0,0 +1,54 @@
<!DOCTYPE html>
<title>Test setTargetAtTime after an event in the same processing block</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(function() {
const bufferSize = 179;
const valueStartOffset = 42;
const targetStartOffset = 53;
const sampleRate = 48000;
const scheduledValue = -0.5;
var context = new OfflineAudioContext(1, bufferSize, sampleRate);
var gain = context.createGain();
gain.gain.setValueAtTime(scheduledValue, valueStartOffset/sampleRate);
gain.gain.setTargetAtTime(scheduledValue, targetStartOffset/sampleRate,
128/sampleRate);
gain.connect(context.destination);
// Apply unit DC signal to gain node.
var source = context.createBufferSource();
source.buffer =
function() {
var buffer = context.createBuffer(1, 1, context.sampleRate);
buffer.getChannelData(0)[0] = 1.0;
return buffer;
}();
source.loop = true;
source.start();
source.connect(gain);
return context.startRendering().
then(function(buffer) {
assert_equals(buffer.length, bufferSize, "output buffer length");
var output = buffer.getChannelData(0);
var i = 0;
for (; i < valueStartOffset; ++i) {
// "Its default value is 1."
assert_equals(output[i], 1.0, "default gain at sample " + i);
}
for (; i < buffer.length; ++i) {
// "If the next event (having time T1) after this SetValue event is
// not of type LinearRampToValue or ExponentialRampToValue, then, for
// T0≤t<T1: v(t)=V".
// "Start exponentially approaching the target value at the given time
// with a rate having the given time constant."
// The target is the same value, and so the SetValue value continues.
assert_equals(output[i], scheduledValue,
"scheduled value at sample " + i);
}
});
});
</script>