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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <script src="/w3c/resources/testharness.js"></script> |
| 5 <script src="/w3c/resources/testharnessreport.js"></script> |
| 6 <script src="mediasource-util.js"></script> |
| 7 </head> |
| 8 <body> |
| 9 <div id="log"></div> |
| 10 <script> |
| 11 mediasource_testafterdataloaded(function(test, mediaElement, mediaSour
ce, segmentInfo, sourceBuffer, mediaData) |
| 12 { |
| 13 // Set duration .5 nanoseconds higher than known duration. Interna
lly, most user |
| 14 // agents do not represent media time with sub-nanosecond precisio
n, so this attempts |
| 15 // to catch edge cases arising from data type conversions. |
| 16 let increased_duration = segmentInfo.duration + /* .5 nanoseconds
*/ .0000000005; |
| 17 mediaSource.duration = increased_duration; |
| 18 |
| 19 // Expect duration to exactly match what was set. |
| 20 assert_equals(mediaSource.duration, increased_duration); |
| 21 |
| 22 // Append media data. |
| 23 test.expectEvent(sourceBuffer, "updateend"); |
| 24 sourceBuffer.appendBuffer(mediaData); |
| 25 test.waitForExpectedEvents(function() |
| 26 { |
| 27 // Appending all data should not change the duration because s
et duration is |
| 28 // already larger than segmentInfo metadata (and we trust segm
entInfo has an |
| 29 // accurate duration - see mediasource-duration.html). |
| 30 assert_equals(mediaSource.duration, increased_duration); |
| 31 |
| 32 // Marking end of stream should cause duration to be reduced t
o match highest |
| 33 // buffered end time. |
| 34 mediaSource.endOfStream(); |
| 35 |
| 36 assert_equals(mediaElement.buffered.length, 1); |
| 37 assert_equals(mediaSource.duration, mediaElement.buffered.end(
0)); |
| 38 |
| 39 // Play the last half second of media to verify 'ended' event
is observed. The |
| 40 // ended event should be triggered when currentTime >= duratio
n, so ensure that |
| 41 // earlier use of high-precision does not prevent this. |
| 42 assert_greater_than(mediaSource.duration, .5); |
| 43 mediaElement.currentTime = mediaSource.duration - .5; |
| 44 |
| 45 test.expectEvent(mediaElement, "ended"); |
| 46 mediaElement.play(); |
| 47 |
| 48 test.waitForExpectedEvents(test.step_func_done()); |
| 49 }); |
| 50 }, "Test high precision duration is returned, then truncated upon endO
fStream()"); |
| 51 </script> |
| 52 </body> |
| 53 </html> |
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Chromium Code Reviews
Issue 2581533002:
MSE: Fix logic bugs with high precision duration (Closed)
