| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="/w3c/resources/testharness.js"></script> |
| <script src="/w3c/resources/testharnessreport.js"></script> |
| <script src="mediasource-util.js"></script> |
| </head> |
| <body> |
| <div id="log"></div> |
| <script> |
| mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData) |
| { |
| // Set duration .5 nanoseconds higher than known duration. Internally, most user |
| // agents do not represent media time with sub-nanosecond precision, so this attempts |
| // to catch edge cases arising from data type conversions. |
| let increased_duration = segmentInfo.duration + /* .5 nanoseconds */ .0000000005; |
| mediaSource.duration = increased_duration; |
| |
| // Expect duration to exactly match what was set. |
| assert_equals(mediaSource.duration, increased_duration); |
| |
| // Append media data. |
| test.expectEvent(sourceBuffer, "updateend"); |
| sourceBuffer.appendBuffer(mediaData); |
| test.waitForExpectedEvents(function() |
| { |
| // Appending all data should not change the duration because set duration is |
| // already larger than segmentInfo metadata (and we trust segmentInfo has an |
| // accurate duration - see mediasource-duration.html). |
| assert_equals(mediaSource.duration, increased_duration); |
| |
| // Marking end of stream should cause duration to be reduced to match highest |
| // buffered end time. |
| mediaSource.endOfStream(); |
| |
| assert_equals(mediaElement.buffered.length, 1); |
| assert_equals(mediaSource.duration, mediaElement.buffered.end(0)); |
| |
| // Play the last half second of media to verify 'ended' event is observed. The |
| // ended event should be triggered when currentTime >= duration, so ensure that |
| // earlier use of high-precision does not prevent this. |
| assert_greater_than(mediaSource.duration, .5); |
| mediaElement.currentTime = mediaSource.duration - .5; |
| |
| test.expectEvent(mediaElement, "ended"); |
| mediaElement.play(); |
| |
| test.waitForExpectedEvents(test.step_func_done()); |
| }); |
| }, "Test high precision duration is returned, then truncated upon endOfStream()"); |
| </script> |
| </body> |
| </html> |
