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<script src="/w3c/resources/testharness.js"></script>
<script src="/w3c/resources/testharnessreport.js"></script>
<script src="mediasource-util.js"></script>
<link rel='stylesheet' href='/w3c/resources/testharness.css'>
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<script>
function simpleTimestampOffsetTest(value, expected, description)
{
mediasource_test(function(test, mediaElement, mediaSource)
{
var segmentInfo = MediaSourceUtil.SEGMENT_INFO;
var sourceBuffer = mediaSource.addSourceBuffer(segmentInfo.type);
if (expected == 'TypeError') {
assert_throws_js(TypeError,
function() { sourceBuffer.timestampOffset = value; },
'setting timestampOffset to ' + description + ' throws an exception.');
} else {
sourceBuffer.timestampOffset = value;
assert_equals(sourceBuffer.timestampOffset, expected);
}
test.done();
}, 'Test setting SourceBuffer.timestampOffset to ' + description + '.');
}
simpleTimestampOffsetTest(10.5, 10.5, 'a positive number');
simpleTimestampOffsetTest(-10.4, -10.4, 'a negative number');
simpleTimestampOffsetTest(0, 0, 'zero');
simpleTimestampOffsetTest(Number.POSITIVE_INFINITY, 'TypeError', 'positive infinity');
simpleTimestampOffsetTest(Number.NEGATIVE_INFINITY, 'TypeError', 'negative infinity');
simpleTimestampOffsetTest(Number.NaN, 'TypeError', 'NaN');
simpleTimestampOffsetTest(undefined, 'TypeError', 'undefined');
simpleTimestampOffsetTest(null, 0, 'null');
simpleTimestampOffsetTest(false, 0, 'false');
simpleTimestampOffsetTest(true, 1, 'true');
simpleTimestampOffsetTest('10.5', 10.5, 'a number string');
simpleTimestampOffsetTest('', 0, 'an empty string');
// Specific to Chromium's usage of TimeDelta with int64_t range in
// microseconds for offsets internally, ensure that setting
// timestampOffset to a very small value does not saturate to
// internal concept of -Infinity in TimeDelta and then fail DCHECK.
simpleTimestampOffsetTest(
'-9223372036854.776', -9223372036854.776,
'a number less than internal kNoTimestamp, but not -Infinity');
mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
{
var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);
var mediaSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.media[0]);
test.expectEvent(sourceBuffer, "updateend", "initSegment append ended.");
sourceBuffer.appendBuffer(initSegment);
test.waitForExpectedEvents(function()
{
test.expectEvent(sourceBuffer, "updateend", "mediaSegment append ended.");
sourceBuffer.appendBuffer(mediaSegment);
});
test.waitForExpectedEvents(function()
{
mediaSource.endOfStream();
assert_equals(mediaSource.readyState, "ended");
mediaSource.sourceBuffers[0].timestampOffset = 2;
assert_equals(mediaSource.readyState, "open");
test.expectEvent(mediaSource, "sourceopen", "mediaSource fired 'sourceopen' event.");
});
test.waitForExpectedEvents(function()
{
test.done();
});
}, "Test setting timestampOffset in 'ended' state causes a transition to 'open'.");
mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
{
var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);
var mediaSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.media[0]);
test.expectEvent(sourceBuffer, "updateend", "initSegment append ended.");
sourceBuffer.appendBuffer(initSegment);
assert_equals(mediaSource.sourceBuffers[0].timestampOffset, 0, "read initial value");
test.waitForExpectedEvents(function()
{
test.expectEvent(sourceBuffer, "updateend", "mediaSegment append ended.");
sourceBuffer.appendBuffer(mediaSegment);
assert_equals(mediaSource.sourceBuffers[0].timestampOffset, 0,
"No change to timestampoffset after segments mode init segment append");
});
test.waitForExpectedEvents(function()
{
assert_equals(mediaSource.sourceBuffers[0].timestampOffset, 0,
"No change to timestampoffset after segments mode media segment append");
test.done();
});
}, "Test getting the initial value of timestampOffset.");
mediasource_test(function(test, mediaElement, mediaSource)
{
var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_VIDEO_TYPE);
assert_true(sourceBuffer != null, "New SourceBuffer returned");
// FIXME: verify activeSourceBuffers is empty before removeSourceBuffer as well.
mediaSource.removeSourceBuffer(sourceBuffer);
assert_true(mediaSource.sourceBuffers.length == 0, "MediaSource.sourceBuffers is empty");
assert_true(mediaSource.activeSourceBuffers.length == 0, "MediaSource.activesourceBuffers is empty");
assert_throws_dom("InvalidStateError", function()
{
sourceBuffer.timestampOffset = 10;
});
test.done();
}, "Test setting timestampoffset after removing the sourcebuffer.");
</script>
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