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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-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 'testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html')
| -rw-r--r-- | testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html new file mode 100644 index 000000000..36fde2b99 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioparam-interface/setValueAtTime-within-block.html @@ -0,0 +1,48 @@ +<!DOCTYPE html> +<title>Test setValueAtTime with start time not on a block boundary</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> +promise_test(function() { + const bufferSize = 200; + const offset = 65; + const sampleRate = 48000; + const scheduledValue = -2.0; + + var context = new OfflineAudioContext(1, bufferSize, sampleRate); + + var gain = context.createGain(); + gain.gain.setValueAtTime(scheduledValue, offset/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 < offset; ++i) { + // "Its default value is 1." + assert_equals(output[i], 1.0, "default gain at sample " + i); + } + for (; i < buffer.length; ++i) { + // "If there are no more events after this SetValue event, then for + // t≥T0, v(t)=V, where T0 is the startTime parameter and V is the + // value parameter." + assert_equals(output[i], scheduledValue, + "scheduled value at sample " + i); + } + }); +}); +</script> |