зеркало из https://github.com/mozilla/gecko-dev.git
74 строки
3.7 KiB
HTML
74 строки
3.7 KiB
HTML
<!DOCTYPE html>
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<!-- Copyright © 2016 Chromium authors and World Wide Web Consortium, (Massachusetts Institute of Technology, ERCIM, Keio University, Beihang). -->
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<html>
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<head>
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<title>Test MediaSource behavior when receiving multiple seek requests during a pending seek.</title>
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<meta name="timeout" content="long">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="mediasource-util.js"></script>
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</head>
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<body>
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<div id="log"></div>
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<script>
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mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
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{
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mediaElement.play();
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// Append all media data for complete playback.
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test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer end update.');
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test.expectEvent(mediaElement, 'loadedmetadata', 'Reached HAVE_METADATA');
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test.expectEvent(mediaElement, 'playing', 'Playing media.');
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sourceBuffer.appendBuffer(mediaData);
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test.waitForExpectedEvents(function()
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{
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var bufferedRanges = mediaElement.buffered;
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assert_greater_than_equal(mediaElement.duration, 4.0, 'Duration is >= 4.0s');
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assert_equals(bufferedRanges.length, 1, 'Just one buffered range');
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assert_less_than_equal(bufferedRanges.start(0), 1.0, 'Buffered range starts <= 1.0s');
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assert_greater_than_equal(bufferedRanges.end(0), 4.0, 'Buffered range ends >= 4.0s');
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test.expectEvent(mediaElement, 'seeking', 'seeking');
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test.expectEvent(mediaElement, 'timeupdate', 'timeupdate');
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test.expectEvent(mediaElement, 'seeked', 'seeked');
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// Request seeks.
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mediaElement.currentTime = 1.0;
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// This 'ephemeral' seek should be invisible to javascript, except any latency incurred in its processing.
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mediaElement.currentTime = 3.0;
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mediaElement.currentTime = 1.0;
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assert_true(mediaElement.seeking, 'Element is seeking');
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assert_equals(mediaElement.currentTime, 1.0, 'Element time is at last seek time');
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});
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test.waitForExpectedEvents(function()
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{
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// No more seeking or seeked events should occur.
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mediaElement.addEventListener('seeking', test.unreached_func("Unexpected event 'seeking'"));
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mediaElement.addEventListener('seeked', test.unreached_func("Unexpected event 'seeked'"));
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assert_false(mediaElement.seeking, 'Element is not seeking');
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assert_greater_than_equal(mediaElement.currentTime, 1.0, 'Element time is at or after last seek time');
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assert_less_than(mediaElement.currentTime, 3.0, 'Element time is before the ephemeral seek time');
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var timeBeforeWait = mediaElement.currentTime;
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test.waitForCurrentTimeChange(mediaElement, function()
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{
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// Time should have advanced a little, but not yet reached the ephemeral seek time.
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assert_greater_than(mediaElement.currentTime, timeBeforeWait, 'Element time has increased');
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assert_less_than(mediaElement.currentTime, 3.0, 'Element time is still before the ephemeral seek time');
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test.done();
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});
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});
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}, 'Test redundant fully prebuffered seek');
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</script>
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</body>
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</html>
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