third_party/web_platform_tests/media-source/mediasource-duration.html - cobalt - Git at Google

 <!DOCTYPE html>
 <html>
     <head>
         <title>MediaSource.duration &amp; HTMLMediaElement.duration 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 mediasource_truncated_duration_seek_test(testFunction, description, options)
           {
               return mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
               {
                   assert_greater_than(segmentInfo.duration, 2, 'Sufficient test media duration');

                   var fullDuration = segmentInfo.duration;
                   var seekTo = fullDuration / 2.0;
                   var truncatedDuration = seekTo / 2.0;

                   mediaElement.play();

                   // Append all the segments
                   test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
                   test.expectEvent(mediaElement, 'playing', 'Playing triggered');
                   sourceBuffer.appendBuffer(mediaData);

                   test.waitForExpectedEvents(function()
                   {
                       assert_equals(mediaElement.duration, fullDuration, 'mediaElement fullDuration');
                       assert_equals(mediaSource.duration, fullDuration, 'mediaSource fullDuration');

                       test.expectEvent(mediaElement, 'seeking', 'seeking to seekTo');
                       test.expectEvent(mediaElement, 'timeupdate', 'timeupdate while seeking to seekTo');
                       test.expectEvent(mediaElement, 'seeked', 'seeked to seekTo');
                       mediaElement.currentTime = seekTo;
                       assert_true(mediaElement.seeking, 'mediaElement.seeking (to seekTo)');
                   });

                   test.waitForExpectedEvents(function()
                   {
                       assert_greater_than_equal(mediaElement.currentTime, seekTo, 'Playback time has reached seekTo');
                       assert_equals(mediaElement.duration, fullDuration, 'mediaElement fullDuration after seekTo');
                       assert_equals(mediaSource.duration, fullDuration, 'mediaSource fullDuration after seekTo');
                       assert_false(mediaElement.seeking, 'mediaElement.seeking after seeked to seekTo');

                       test.expectEvent(mediaElement, 'seeking', 'Seeking to truncated duration');

                       assert_false(sourceBuffer.updating, 'sourceBuffer.updating');

                       mediaSource.duration = truncatedDuration;

                       assert_true(sourceBuffer.updating, 'sourceBuffer.updating');
                       test.expectEvent(sourceBuffer, 'updatestart', 'sourceBuffer');
                       test.expectEvent(sourceBuffer, 'update', 'sourceBuffer');
                       test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');

                       assert_true(mediaElement.seeking, 'Seeking after setting truncatedDuration');
                   });

                   test.waitForExpectedEvents(function()
                   {
                       assert_equals(mediaElement.currentTime, truncatedDuration,
                                     'Playback time is truncatedDuration while seeking');
                       assert_true(mediaElement.seeking, 'mediaElement.seeking while seeking to truncatedDuration');
                       assert_equals(mediaElement.duration, truncatedDuration,
                                     'mediaElement truncatedDuration during seek to it');
                       assert_equals(mediaSource.duration, truncatedDuration,
                                     'mediaSource truncatedDuration during seek to it');

                       testFunction(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData,
                                    truncatedDuration);
                   });
               }, description, options);
           }

           mediasource_truncated_duration_seek_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer,
                                                             mediaData, truncatedDuration)
           {
               // Tests that duration truncation below current playback position
               // starts seek to new duration.
               test.done();
           }, 'Test seek starts on duration truncation below currentTime');

           mediasource_truncated_duration_seek_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer,
                                                             mediaData, truncatedDuration)
           {
               // The duration has been truncated at this point, and there is an
               // outstanding seek pending.
               test.expectEvent(sourceBuffer, 'updateend', 'updateend after appending more data');

               test.expectEvent(mediaElement, 'timeupdate', 'timeupdate while finishing seek to truncatedDuration');
               test.expectEvent(mediaElement, 'seeked', 'seeked to truncatedDuration');

               // Allow seek to complete by appending more data beginning at the
               // truncated duration timestamp.
               sourceBuffer.timestampOffset = truncatedDuration;
               sourceBuffer.appendBuffer(mediaData);

               test.waitForExpectedEvents(function()
               {
                   assert_greater_than_equal(mediaElement.currentTime, truncatedDuration,
                                             'Playback time has reached truncatedDuration');
                   assert_approx_equals(mediaElement.duration, truncatedDuration + segmentInfo.duration, 0.05,
                                        'mediaElement duration increased by new append');
                   assert_equals(mediaSource.duration, mediaElement.duration,
                                 'mediaSource duration increased by new append');
                   assert_false(mediaElement.seeking, 'mediaElement.seeking after seeked to truncatedDuration');

                   test.done();
               });
           }, 'Test appendBuffer completes previous seek to truncated duration');

           mediasource_truncated_duration_seek_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer,
                                                             mediaData, truncatedDuration)
           {
               // The duration has been truncated at this point, and there is an
               // outstanding seek pending.
               test.expectEvent(mediaSource, 'sourceended', 'endOfStream acknowledged');

               test.expectEvent(mediaElement, 'timeupdate', 'timeupdate while finishing seek to truncatedDuration');
               test.expectEvent(mediaElement, 'seeked', 'seeked to truncatedDuration');

               // Call endOfStream() to complete the pending seek.
               mediaSource.endOfStream();

               test.waitForExpectedEvents(function()
               {
                   assert_equals(mediaElement.currentTime, truncatedDuration,
                                 'Playback time has reached truncatedDuration');
                   assert_equals(mediaElement.duration, truncatedDuration,
                                 'mediaElement truncatedDuration after seek to it');
                   assert_equals(mediaSource.duration, truncatedDuration,
                                 'mediaSource truncatedDuration after seek to it');
                   assert_false(mediaElement.seeking, 'mediaElement.seeking after seeked to truncatedDuration');

                   test.done();
               });
           }, 'Test endOfStream completes previous seek to truncated duration');

           mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
           {
               assert_greater_than(segmentInfo.duration, 2, 'Sufficient test media duration');

               var fullDuration = segmentInfo.duration;
               var newDuration = 0.5;

               var expectedDurationChangeEventCount = 1;
               var durationchangeEventCounter = 0;
               var durationchangeEventHandler = test.step_func(function(event)
               {
                   assert_equals(mediaElement.duration, newDuration, 'mediaElement newDuration');
                   assert_equals(mediaSource.duration, newDuration, 'mediaSource newDuration');
                   durationchangeEventCounter++;
               });

               mediaElement.play();

               // Append all the segments
               test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
               test.expectEvent(mediaElement, 'playing', 'Playing triggered');
               sourceBuffer.appendBuffer(mediaData);

               test.waitForExpectedEvents(function()
               {
                   assert_equals(mediaElement.duration, fullDuration, 'mediaElement fullDuration');
                   assert_equals(mediaSource.duration, fullDuration, 'mediaSource fullDuration');
                   assert_less_than(mediaElement.currentTime, newDuration / 2, 'mediaElement currentTime');

                   // Media load also fires 'durationchange' event, so only start counting them now.
                   mediaElement.addEventListener('durationchange', durationchangeEventHandler);

                   assert_false(sourceBuffer.updating, "updating");

                   // Truncate duration. This should result in one 'durationchange' fired.
                   mediaSource.duration = newDuration;

                   assert_true(sourceBuffer.updating, "updating");
                   test.expectEvent(sourceBuffer, 'updatestart', 'sourceBuffer');
                   test.expectEvent(sourceBuffer, 'update', 'sourceBuffer');
                   test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
               });

               test.waitForExpectedEvents(function()
               {
                   assert_false(sourceBuffer.updating, "updating");

                   // Set duration again to make sure it does not trigger another 'durationchange' event.
                   mediaSource.duration = newDuration;

                   // Mark endOfStream so that playback can reach 'ended' at the new duration.
                   test.expectEvent(mediaSource, 'sourceended', 'endOfStream acknowledged');
                   mediaSource.endOfStream();

                   // endOfStream can change duration downwards slightly.
                   // Allow for one more 'durationchange' event only in this case.
                   var currentDuration = mediaSource.duration;
                   if (currentDuration != newDuration) {
                       assert_true(currentDuration > 0 && currentDuration < newDuration, 'adjusted duration');
                       newDuration = currentDuration;
                       ++expectedDurationChangeEventCount;
                   }

                   // Allow media to play to end while counting 'durationchange' events.
                   test.expectEvent(mediaElement, 'ended', 'Playback ended');
                   test.waitForExpectedEvents(function()
                   {
                       mediaElement.removeEventListener('durationchange', durationchangeEventHandler);
                       assert_equals(durationchangeEventCounter, expectedDurationChangeEventCount, 'durationchanges');
                       test.done();
                   });
               });
           }, 'Test setting same duration multiple times does not fire duplicate durationchange');
         </script>
     </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>MediaSource.duration & HTMLMediaElement.duration 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 mediasource_truncated_duration_seek_test(testFunction, description, options)
	{
	return mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
	{
	assert_greater_than(segmentInfo.duration, 2, 'Sufficient test media duration');

	var fullDuration = segmentInfo.duration;
	var seekTo = fullDuration / 2.0;
	var truncatedDuration = seekTo / 2.0;

	mediaElement.play();

	// Append all the segments
	test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
	test.expectEvent(mediaElement, 'playing', 'Playing triggered');
	sourceBuffer.appendBuffer(mediaData);

	test.waitForExpectedEvents(function()
	{
	assert_equals(mediaElement.duration, fullDuration, 'mediaElement fullDuration');
	assert_equals(mediaSource.duration, fullDuration, 'mediaSource fullDuration');

	test.expectEvent(mediaElement, 'seeking', 'seeking to seekTo');
	test.expectEvent(mediaElement, 'timeupdate', 'timeupdate while seeking to seekTo');
	test.expectEvent(mediaElement, 'seeked', 'seeked to seekTo');
	mediaElement.currentTime = seekTo;
	assert_true(mediaElement.seeking, 'mediaElement.seeking (to seekTo)');
	});

	test.waitForExpectedEvents(function()
	{
	assert_greater_than_equal(mediaElement.currentTime, seekTo, 'Playback time has reached seekTo');
	assert_equals(mediaElement.duration, fullDuration, 'mediaElement fullDuration after seekTo');
	assert_equals(mediaSource.duration, fullDuration, 'mediaSource fullDuration after seekTo');
	assert_false(mediaElement.seeking, 'mediaElement.seeking after seeked to seekTo');

	test.expectEvent(mediaElement, 'seeking', 'Seeking to truncated duration');

	assert_false(sourceBuffer.updating, 'sourceBuffer.updating');

	mediaSource.duration = truncatedDuration;

	assert_true(sourceBuffer.updating, 'sourceBuffer.updating');
	test.expectEvent(sourceBuffer, 'updatestart', 'sourceBuffer');
	test.expectEvent(sourceBuffer, 'update', 'sourceBuffer');
	test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');

	assert_true(mediaElement.seeking, 'Seeking after setting truncatedDuration');
	});

	test.waitForExpectedEvents(function()
	{
	assert_equals(mediaElement.currentTime, truncatedDuration,
	'Playback time is truncatedDuration while seeking');
	assert_true(mediaElement.seeking, 'mediaElement.seeking while seeking to truncatedDuration');
	assert_equals(mediaElement.duration, truncatedDuration,
	'mediaElement truncatedDuration during seek to it');
	assert_equals(mediaSource.duration, truncatedDuration,
	'mediaSource truncatedDuration during seek to it');

	testFunction(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData,
	truncatedDuration);
	});
	}, description, options);
	}

	mediasource_truncated_duration_seek_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer,
	mediaData, truncatedDuration)
	{
	// Tests that duration truncation below current playback position
	// starts seek to new duration.
	test.done();
	}, 'Test seek starts on duration truncation below currentTime');

	mediasource_truncated_duration_seek_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer,
	mediaData, truncatedDuration)
	{
	// The duration has been truncated at this point, and there is an
	// outstanding seek pending.
	test.expectEvent(sourceBuffer, 'updateend', 'updateend after appending more data');

	test.expectEvent(mediaElement, 'timeupdate', 'timeupdate while finishing seek to truncatedDuration');
	test.expectEvent(mediaElement, 'seeked', 'seeked to truncatedDuration');

	// Allow seek to complete by appending more data beginning at the
	// truncated duration timestamp.
	sourceBuffer.timestampOffset = truncatedDuration;
	sourceBuffer.appendBuffer(mediaData);

	test.waitForExpectedEvents(function()
	{
	assert_greater_than_equal(mediaElement.currentTime, truncatedDuration,
	'Playback time has reached truncatedDuration');
	assert_approx_equals(mediaElement.duration, truncatedDuration + segmentInfo.duration, 0.05,
	'mediaElement duration increased by new append');
	assert_equals(mediaSource.duration, mediaElement.duration,
	'mediaSource duration increased by new append');
	assert_false(mediaElement.seeking, 'mediaElement.seeking after seeked to truncatedDuration');

	test.done();
	});
	}, 'Test appendBuffer completes previous seek to truncated duration');

	mediasource_truncated_duration_seek_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer,
	mediaData, truncatedDuration)
	{
	// The duration has been truncated at this point, and there is an
	// outstanding seek pending.
	test.expectEvent(mediaSource, 'sourceended', 'endOfStream acknowledged');

	test.expectEvent(mediaElement, 'timeupdate', 'timeupdate while finishing seek to truncatedDuration');
	test.expectEvent(mediaElement, 'seeked', 'seeked to truncatedDuration');

	// Call endOfStream() to complete the pending seek.
	mediaSource.endOfStream();

	test.waitForExpectedEvents(function()
	{
	assert_equals(mediaElement.currentTime, truncatedDuration,
	'Playback time has reached truncatedDuration');
	assert_equals(mediaElement.duration, truncatedDuration,
	'mediaElement truncatedDuration after seek to it');
	assert_equals(mediaSource.duration, truncatedDuration,
	'mediaSource truncatedDuration after seek to it');
	assert_false(mediaElement.seeking, 'mediaElement.seeking after seeked to truncatedDuration');

	test.done();
	});
	}, 'Test endOfStream completes previous seek to truncated duration');

	mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
	{
	assert_greater_than(segmentInfo.duration, 2, 'Sufficient test media duration');

	var fullDuration = segmentInfo.duration;
	var newDuration = 0.5;

	var expectedDurationChangeEventCount = 1;
	var durationchangeEventCounter = 0;
	var durationchangeEventHandler = test.step_func(function(event)
	{
	assert_equals(mediaElement.duration, newDuration, 'mediaElement newDuration');
	assert_equals(mediaSource.duration, newDuration, 'mediaSource newDuration');
	durationchangeEventCounter++;
	});

	mediaElement.play();

	// Append all the segments
	test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
	test.expectEvent(mediaElement, 'playing', 'Playing triggered');
	sourceBuffer.appendBuffer(mediaData);

	test.waitForExpectedEvents(function()
	{
	assert_equals(mediaElement.duration, fullDuration, 'mediaElement fullDuration');
	assert_equals(mediaSource.duration, fullDuration, 'mediaSource fullDuration');
	assert_less_than(mediaElement.currentTime, newDuration / 2, 'mediaElement currentTime');

	// Media load also fires 'durationchange' event, so only start counting them now.
	mediaElement.addEventListener('durationchange', durationchangeEventHandler);

	assert_false(sourceBuffer.updating, "updating");

	// Truncate duration. This should result in one 'durationchange' fired.
	mediaSource.duration = newDuration;

	assert_true(sourceBuffer.updating, "updating");
	test.expectEvent(sourceBuffer, 'updatestart', 'sourceBuffer');
	test.expectEvent(sourceBuffer, 'update', 'sourceBuffer');
	test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
	});

	test.waitForExpectedEvents(function()
	{
	assert_false(sourceBuffer.updating, "updating");

	// Set duration again to make sure it does not trigger another 'durationchange' event.
	mediaSource.duration = newDuration;

	// Mark endOfStream so that playback can reach 'ended' at the new duration.
	test.expectEvent(mediaSource, 'sourceended', 'endOfStream acknowledged');
	mediaSource.endOfStream();

	// endOfStream can change duration downwards slightly.
	// Allow for one more 'durationchange' event only in this case.
	var currentDuration = mediaSource.duration;
	if (currentDuration != newDuration) {
	assert_true(currentDuration > 0 && currentDuration < newDuration, 'adjusted duration');
	newDuration = currentDuration;
	++expectedDurationChangeEventCount;
	}

	// Allow media to play to end while counting 'durationchange' events.
	test.expectEvent(mediaElement, 'ended', 'Playback ended');
	test.waitForExpectedEvents(function()
	{
	mediaElement.removeEventListener('durationchange', durationchangeEventHandler);
	assert_equals(durationchangeEventCounter, expectedDurationChangeEventCount, 'durationchanges');
	test.done();
	});
	});
	}, 'Test setting same duration multiple times does not fire duplicate durationchange');
	</script>
	</body>
	</html>