<!DOCTYPE html> <!-- Copyright © 2016 Chromium authors and World Wide Web Consortium, (Massachusetts Institute of Technology, ERCIM, Keio University, Beihang). --> <html> <head> <title>SourceBuffer.timestampOffset test cases.</title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="mediasource-util.js"></script> </head> <body> <div id="log"></div> <script> function simpleTimestampOffsetTest(value, expected, description) { mediasource_test(function(test, mediaElement, mediaSource) { var segmentInfo = MediaSourceUtil.SEGMENT_INFO; var sourceBuffer = mediaSource.addSourceBuffer(segmentInfo.type); assert_equals(sourceBuffer.timestampOffset, 0, "Initial timestampOffset of a SourceBuffer is 0"); 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"); 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"); mediaSource.removeSourceBuffer(sourceBuffer); assert_equals(mediaSource.sourceBuffers.length, 0, "MediaSource.sourceBuffers is empty"); assert_equals(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> </body> </html>