| <!DOCTYPE html> | 
 | <html> | 
 |     <head> | 
 |         <title>Test MediaSource behavior when seeking beyond the duration of the clip.</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 seekToSpecifiedTimeSetEOSAndVerifyDone(test, mediaElement, mediaSource, seekToTime) | 
 |             { | 
 |                 assert_less_than(mediaElement.currentTime, mediaElement.duration, 'Not at the end yet.'); | 
 |                 test.expectEvent(mediaElement, 'seeking', 'mediaElement seeking'); | 
 |                 // Seek to specified time. | 
 |                 mediaElement.currentTime = seekToTime; | 
 |                 if (seekToTime >= mediaSource.duration) { | 
 |                     assert_equals(mediaElement.currentTime, mediaSource.duration, 'Current time equals duration.'); | 
 |                 } else { | 
 |                     assert_equals(mediaElement.currentTime, seekToTime, 'Current time equals specified seek time.'); | 
 |                 } | 
 |  | 
 |                 test.waitForExpectedEvents(function() | 
 |                 { | 
 |                     test.expectEvent(mediaElement, 'timeupdate', 'mediaElement time updated.'); | 
 |                     test.expectEvent(mediaElement, 'seeked', 'mediaElement seeked'); | 
 |                     test.expectEvent(mediaElement, 'ended', 'mediaElement ended.'); | 
 |                     test.expectEvent(mediaSource, 'sourceended', 'mediaSource ended.'); | 
 |                     mediaSource.endOfStream(); | 
 |                     assert_true(mediaElement.seeking, 'mediaElement seeking.'); | 
 |                 }); | 
 |  | 
 |                 test.waitForExpectedEvents(function() | 
 |                 { | 
 |                     assert_equals(mediaElement.currentTime, mediaSource.duration, 'Current time equals duration.'); | 
 |                     test.done(); | 
 |                 }); | 
 |             }; | 
 |  | 
 |             mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData) | 
 |             { | 
 |                 mediaElement.play(); | 
 |                 var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init); | 
 |  | 
 |                 // Append the initialization segment to trigger a transition to HAVE_METADATA. | 
 |                 test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer end update.'); | 
 |                 test.expectEvent(mediaElement, 'loadedmetadata', 'Reached HAVE_METADATA'); | 
 |                 sourceBuffer.appendBuffer(initSegment); | 
 |  | 
 |                 test.waitForExpectedEvents(function() | 
 |                 { | 
 |                     // Add sufficient segments to have at least 2s of play-time. | 
 |                     var playbackData = MediaSourceUtil.getMediaDataForPlaybackTime(mediaData, segmentInfo, 2.0); | 
 |                     test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer'); | 
 |                     test.expectEvent(mediaElement, 'playing', 'Playing media.'); | 
 |                     sourceBuffer.appendBuffer(playbackData); | 
 |                 }); | 
 |  | 
 |                 test.waitForExpectedEvents(function() | 
 |                 { | 
 |                     assert_equals(mediaElement.duration, segmentInfo.duration); | 
 |                     assert_greater_than_equal(mediaElement.duration, 2.0, 'Duration is >2.0s.'); | 
 |                     test.waitForCurrentTimeChange(mediaElement, function() | 
 |                     { | 
 |                         // Update duration. | 
 |                         mediaSource.duration = 1.5; | 
 |                         seekToSpecifiedTimeSetEOSAndVerifyDone(test, mediaElement, mediaSource, 1.8); | 
 |                     }); | 
 |                 }); | 
 |             }, 'Test seeking beyond updated media duration.'); | 
 |  | 
 |             mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData) | 
 |             { | 
 |                 mediaElement.play(); | 
 |  | 
 |                 // Append all media data for complete playback. | 
 |                 test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer end update.'); | 
 |                 test.expectEvent(mediaElement, 'loadedmetadata', 'Reached HAVE_METADATA'); | 
 |                 test.expectEvent(mediaElement, 'playing', 'Playing media.'); | 
 |                 sourceBuffer.appendBuffer(mediaData); | 
 |  | 
 |                 test.waitForExpectedEvents(function() | 
 |                 { | 
 |                     test.waitForCurrentTimeChange(mediaElement, function() | 
 |                     { | 
 |                         seekToSpecifiedTimeSetEOSAndVerifyDone(test, mediaElement, mediaSource, mediaSource.duration, mediaSource.duration + 0.1); | 
 |                     }); | 
 |                 }); | 
 |  | 
 |             }, 'Test seeking beyond media duration.'); | 
 |         </script> | 
 |     </body> | 
 | </html> |