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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 /dom/media/webaudio/test/test_mediaElementAudioSourceNode.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 'dom/media/webaudio/test/test_mediaElementAudioSourceNode.html')
| -rw-r--r-- | dom/media/webaudio/test/test_mediaElementAudioSourceNode.html | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_mediaElementAudioSourceNode.html b/dom/media/webaudio/test/test_mediaElementAudioSourceNode.html new file mode 100644 index 000000000..3e196735f --- /dev/null +++ b/dom/media/webaudio/test/test_mediaElementAudioSourceNode.html @@ -0,0 +1,74 @@ +<!DOCTYPE HTML> +<html> +<meta charset="utf-8"> +<head> + <title>Test MediaElementAudioSourceNode</title> + <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<pre id="test"> +<script class="testbody" type="text/javascript"> +SimpleTest.waitForExplicitFinish(); + +function test() { + var audio = new Audio("small-shot.ogg"); + var context = new AudioContext(); + var expectedMinNonzeroSampleCount; + var expectedMaxNonzeroSampleCount; + var nonzeroSampleCount = 0; + var complete = false; + var iterationCount = 0; + + // This test ensures we receive at least expectedSampleCount nonzero samples + function processSamples(e) { + if (complete) { + return; + } + + if (iterationCount == 0) { + // Don't start playing the audio until the AudioContext stuff is connected + // and running. + audio.play(); + } + ++iterationCount; + + var buf = e.inputBuffer.getChannelData(0); + var nonzeroSamplesThisBuffer = 0; + for (var i = 0; i < buf.length; ++i) { + if (buf[i] != 0) { + ++nonzeroSamplesThisBuffer; + } + } + nonzeroSampleCount += nonzeroSamplesThisBuffer; + is(e.inputBuffer.numberOfChannels, 1, + "Checking data channel count (nonzeroSamplesThisBuffer=" + + nonzeroSamplesThisBuffer + ")"); + ok(nonzeroSampleCount <= expectedMaxNonzeroSampleCount, + "Too many nonzero samples (got " + nonzeroSampleCount + ", expected max " + expectedMaxNonzeroSampleCount + ")"); + if (nonzeroSampleCount >= expectedMinNonzeroSampleCount && + nonzeroSamplesThisBuffer == 0) { + ok(true, + "Check received enough nonzero samples (got " + nonzeroSampleCount + ", expected min " + expectedMinNonzeroSampleCount + ")"); + SimpleTest.finish(); + complete = true; + } + } + + audio.onloadedmetadata = function() { + var node = context.createMediaElementSource(audio); + var sp = context.createScriptProcessor(2048, 1); + node.connect(sp); + // Use a fuzz factor of 100 to account for samples that just happen to be zero + expectedMinNonzeroSampleCount = Math.floor(audio.duration*context.sampleRate) - 100; + expectedMaxNonzeroSampleCount = Math.floor(audio.duration*context.sampleRate) + 500; + sp.onaudioprocess = processSamples; + }; +} + +SpecialPowers.pushPrefEnv({"set": [["media.preload.default", 2], ["media.preload.auto", 3]]}, test); + +</script> +</pre> +</body> +</html> |