blob: 00df2ce0386270b5ac3a94b1f1e9bbdbc0e1fb92 [file] [log] [blame]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script src="resources/audio-testing.js"></script>
<script src="../resources/js-test.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script>
description("Test AudioContext activeSourceCount and AudioBufferSourceNode playbackState.");
// Create a few sources that start and end playing at various times. After rendering, check that
// each source is in the correct state and that the number of active sources is correct.
var sampleRate = 44100;
// Render for this long.
var renderTime = 2;
var renderLength = timeToSampleFrame(renderTime, sampleRate);
var context;
// List of AudioBufferSourceNodes sources.
var sources = [];
// List of messages that will be printed out on success (or failure). Messages are in the same
// order as the sources list above.
var sourceMessages = [];
// List of the expected playback state for each source. In the same order a sources list above.
var sourceExpectedStates = [];
// Array mapping the playback state to a string.
var playbackStateName = ["UNSCHEDULED_STATE ",
"SCHEDULED_STATE ",
"PLAYING_STATE ",
"FINISHED_STATE "];
function checkResult(event)
{
var success = true;
// For each source, verify that the playback state matches our expected playback state.
for (var k = 0; k < sources.length; ++k) {
var prefix = playbackStateName[sourceExpectedStates[k]] + sourceMessages[k];
if (sources[k].playbackState == sourceExpectedStates[k]) {
testPassed(prefix);
} else {
testFailed(prefix + ": Actual = " + playbackStateName[sources[k].playbackState]);
success = false;
}
}
// Figure out how many active sources there should be from the expected states.
var playingState = sources[0].PLAYING_STATE
var expectedActiveCount = 0;
for (k = 0; k < sourceExpectedStates.length; ++k) {
if (sourceExpectedStates[k] == playingState) {
++expectedActiveCount;
}
}
if (context.activeSourceCount == expectedActiveCount) {
testPassed(context.activeSourceCount + " are currently playing as expected.");
} else {
testFailed(context.activeSourceCount + " are currently playing, but expected " + expectedActiveCount + ".");
success = false;
}
if (success) {
testPassed("activeSourceCount and playbackState tests succeeded.");
} else {
testFailed("activeSourceCount and playbackState tests did not succeed.");
}
finishJSTest();
}
// sourceLength - length of source in seconds
// noteFunction - function to turn on source appropriately
// expectedState - expected state of the source at the end of rendering
// message - message to be displayed if test passes
function createTest(sourceLength, noteFunction, expectedState, message)
{
var s = context.createBufferSource();
s.buffer = createImpulseBuffer(context, timeToSampleFrame(sourceLength, sampleRate));
s.connect(context.destination);
noteFunction(s);
sources.push(s);
sourceMessages.push(message);
sourceExpectedStates.push(expectedState);
}
function runTest()
{
window.jsTestIsAsync = true;
// Create offline audio context, rendering for renderTime seconds.
context = new webkitOfflineAudioContext(2, timeToSampleFrame(renderTime, sampleRate), sampleRate);
// This is only used so we can access the playback state constants.
var bufferSource = context.createBufferSource();
// Dummy message so we know how long we're rendering so we can interpret the pass/fail messages
// correctly.
testPassed("Rendering time is " + renderTime + " seconds.");
// Test unscheduled state. Create 3 second source, but don't schedule it.
createTest(3,
function(s) { },
bufferSource.UNSCHEDULED_STATE,
"Source has been created");
// Test start.
createTest(3,
function(s) { s.start(renderTime + 1); },
bufferSource.SCHEDULED_STATE,
"3 second source scheduled to start at time " + (renderTime + 1));
createTest(2,
function(s) { s.start(1); },
bufferSource.PLAYING_STATE,
"2 second source starting at time 1");
createTest(1.25,
function(s) { s.start(0); },
bufferSource.FINISHED_STATE,
"1.25 second source starting at time 0");
// Test looping source
createTest(0.5,
function(s) { s.loop = true; s.start(renderTime + 1); },
bufferSource.SCHEDULED_STATE,
"a looping 0.5 second source scheduled at time " + (renderTime + 1));
createTest(0.5,
function(s) { s.loop = true; s.start(1.25); },
bufferSource.PLAYING_STATE,
"a looping 0.5 second source starting at time 1.25");
context.oncomplete = checkResult;
context.startRendering();
}
runTest();
</script>
</body>
</html>