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140 lines
8.8 KiB
HTML
140 lines
8.8 KiB
HTML
<!DOCTYPE html>
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<!-- Copyright © 2016 Chromium authors and World Wide Web Consortium, (Massachusetts Institute of Technology, ERCIM, Keio University, Beihang). -->
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<html>
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<head>
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<title>SourceBuffer.mode == "sequence" test cases.</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="mediasource-util.js"></script>
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</head>
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<body>
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<div id="log"></div>
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<script>
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function mediasource_sequencemode_test(testFunction, description, options)
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{
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return mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
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{
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assert_greater_than(segmentInfo.media.length, 3, "at least 3 media segments for supported type");
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mediaElement.addEventListener("error", test.unreached_func("Unexpected event 'error'"));
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sourceBuffer.mode = "sequence";
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assert_equals(sourceBuffer.mode, "sequence", "mode after setting it to \"sequence\"");
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var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);
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test.expectEvent(sourceBuffer, "updatestart", "initSegment append started.");
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test.expectEvent(sourceBuffer, "update", "initSegment append success.");
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test.expectEvent(sourceBuffer, "updateend", "initSegment append ended.");
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sourceBuffer.appendBuffer(initSegment);
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test.waitForExpectedEvents(function()
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{
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assert_equals(sourceBuffer.timestampOffset, 0, "timestampOffset initially 0");
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testFunction(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData);
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});
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}, description, options);
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}
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function append_segment(test, sourceBuffer, mediaData, info, callback)
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{
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var mediaSegment = MediaSourceUtil.extractSegmentData(mediaData, info);
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test.expectEvent(sourceBuffer, "updatestart", "media segment append started.");
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test.expectEvent(sourceBuffer, "update", "media segment append success.");
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test.expectEvent(sourceBuffer, "updateend", "media segment append ended.");
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sourceBuffer.appendBuffer(mediaSegment);
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test.waitForExpectedEvents(callback);
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}
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function threeDecimalPlaces(number)
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{
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return Number(number.toFixed(3));
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}
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// Verifies expected times to 3 decimal places before and after mediaSource.endOfStream(),
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// and calls |callback| on success.
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function verify_offset_and_buffered(test, mediaSource, sourceBuffer,
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expectedTimestampOffset, expectedBufferedRangeStartTime,
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expectedBufferedRangeMaxEndTimeBeforeEOS,
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expectedBufferedRangeEndTimeAfterEOS,
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callback) {
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assert_equals(threeDecimalPlaces(sourceBuffer.timestampOffset),
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threeDecimalPlaces(expectedTimestampOffset),
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"expectedTimestampOffset");
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// Prior to EOS, the buffered range end time may not have fully reached the next media
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// segment's timecode (adjusted by any timestampOffset). It should not exceed it though.
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// Therefore, an exact assertBufferedEquals() will not work here.
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assert_greater_than(sourceBuffer.buffered.length, 0, "sourceBuffer.buffered has at least 1 range before EOS");
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assert_equals(threeDecimalPlaces(sourceBuffer.buffered.start(0)),
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threeDecimalPlaces(expectedBufferedRangeStartTime),
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"sourceBuffer.buffered range begins where expected before EOS");
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assert_less_than_equal(threeDecimalPlaces(sourceBuffer.buffered.end(0)),
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threeDecimalPlaces(expectedBufferedRangeMaxEndTimeBeforeEOS),
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"sourceBuffer.buffered range ends at or before expected upper bound before EOS");
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test.expectEvent(mediaSource, "sourceended", "mediaSource endOfStream");
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mediaSource.endOfStream();
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test.waitForExpectedEvents(function()
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{
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assertBufferedEquals(sourceBuffer,
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"{ [" + expectedBufferedRangeStartTime.toFixed(3) + ", " + expectedBufferedRangeEndTimeAfterEOS.toFixed(3) + ") }",
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"sourceBuffer.buffered after EOS");
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callback();
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});
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}
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mediasource_sequencemode_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
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{
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var offset = Math.min(segmentInfo.media[0].timev, segmentInfo.media[0].timea);
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var expectedStart = Math.max(segmentInfo.media[0].timev, segmentInfo.media[0].timea) - offset;
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var expectedEnd = Math.min(segmentInfo.media[0].endtimev, segmentInfo.media[0].endtimea) - offset;
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var expectedEndEOS = Math.max(segmentInfo.media[0].endtimev, segmentInfo.media[0].endtimea) - offset;
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append_segment(test, sourceBuffer, mediaData, segmentInfo.media[0], function()
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{
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verify_offset_and_buffered(test, mediaSource, sourceBuffer,
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-offset, expectedStart,
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expectedEnd, expectedEndEOS,
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test.done);
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});
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}, "Test sequence AppendMode appendBuffer(first media segment)");
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mediasource_sequencemode_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
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{
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var offset = Math.min(segmentInfo.media[1].timev, segmentInfo.media[1].timea);
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var expectedStart = Math.max(segmentInfo.media[1].timev, segmentInfo.media[1].timea) - offset;
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var expectedEnd = Math.min(segmentInfo.media[1].endtimev, segmentInfo.media[1].endtimea) - offset;
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var expectedEndEOS = Math.max(segmentInfo.media[1].endtimev, segmentInfo.media[1].endtimea) - offset;
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assert_greater_than(Math.min(segmentInfo.media[1].timev, segmentInfo.media[1].timea), 0,
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"segment starts after time 0");
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append_segment(test, sourceBuffer, mediaData, segmentInfo.media[1], function()
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{
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verify_offset_and_buffered(test, mediaSource, sourceBuffer,
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-offset, expectedStart,
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expectedEnd, expectedEndEOS,
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test.done);
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});
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}, "Test sequence AppendMode appendBuffer(second media segment)");
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mediasource_sequencemode_test(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
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{
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assert_greater_than(Math.min(segmentInfo.media[1].timev, segmentInfo.media[1].timea), 0,
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"segment starts after time 0");
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append_segment(test, sourceBuffer, mediaData, segmentInfo.media[1], function()
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{
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append_segment(test, sourceBuffer, mediaData, segmentInfo.media[0], function()
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{
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var firstOffset = Math.min(segmentInfo.media[1].timev, segmentInfo.media[1].timea);
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var secondOffset = Math.max(segmentInfo.media[1].endtimev, segmentInfo.media[1].endtimea) - firstOffset;
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var expectedStart = Math.max(segmentInfo.media[1].timev, segmentInfo.media[1].timea) - firstOffset;
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var expectedEnd = Math.min(segmentInfo.media[0].endtimev, segmentInfo.media[0].endtimea) + secondOffset;
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var expectedEndEOS = Math.max(segmentInfo.media[0].endtimev, segmentInfo.media[0].endtimea) + secondOffset;
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// Current timestampOffset should reflect offset required to put media[0]
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// immediately after media[1]'s highest frame end timestamp (as was adjusted
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// by an earlier timestampOffset).
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verify_offset_and_buffered(test, mediaSource, sourceBuffer,
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secondOffset, expectedStart,
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expectedEnd, expectedEndEOS,
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test.done);
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})
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});
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}, "Test sequence AppendMode appendBuffer(second media segment, then first media segment)");
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</script>
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</body>
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</html>
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