mediasource-avtracks.html

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This test has a WPT meta file that expects 4 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /media-source/mediasource-avtracks.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- Copyright © 2016 Chromium authors and World Wide Web Consortium, (Massachusetts Institute of Technology, ERCIM, Keio University, Beihang). -->

<meta charset="utf-8">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="mediasource-util.js"></script>

<script>

    mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)

        var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);

        sourceBuffer.appendBuffer(initSegment);

        test.expectEvent(sourceBuffer.audioTracks, "addtrack", "sourceBuffer.audioTracks addtrack event");

        test.expectEvent(sourceBuffer.videoTracks, "addtrack", "sourceBuffer.videoTracks addtrack event");

        test.expectEvent(mediaElement.audioTracks, "addtrack", "mediaElement.audioTracks addtrack event");

        test.expectEvent(mediaElement.videoTracks, "addtrack", "mediaElement.videoTracks addtrack event");

        test.expectEvent(mediaElement, "loadedmetadata", "loadedmetadata done.");

        test.expectEvent(sourceBuffer, "updateend", "initSegment append ended.");

        test.waitForExpectedEvents(function()

            assert_equals(sourceBuffer.videoTracks.length, 1, "videoTracks.length");

            assert_equals(sourceBuffer.videoTracks[0].kind, "main", "videoTrack.kind");

            assert_equals(sourceBuffer.videoTracks[0].label, "", "videoTrack.label");

            assert_equals(sourceBuffer.videoTracks[0].language, "eng", "videoTrack.language");

            assert_equals(sourceBuffer.videoTracks[0].sourceBuffer, sourceBuffer, "videoTrack.sourceBuffer");

            // The first video track is selected by default.

            assert_true(sourceBuffer.videoTracks[0].selected, "sourceBuffer.videoTracks[0].selected");

            assert_equals(sourceBuffer.audioTracks.length, 1, "audioTracks.length");

            assert_equals(sourceBuffer.audioTracks[0].kind, "main", "audioTrack.kind");

            assert_equals(sourceBuffer.audioTracks[0].label, "", "audioTrack.label");

            assert_equals(sourceBuffer.audioTracks[0].language, "eng", "audioTrack.language");

            assert_equals(sourceBuffer.audioTracks[0].sourceBuffer, sourceBuffer, "audioTrack.sourceBuffer");

            // The first audio track is enabled by default.

            assert_true(sourceBuffer.audioTracks[0].enabled, "sourceBuffer.audioTracks[0].enabled");

            assert_not_equals(sourceBuffer.audioTracks[0].id, sourceBuffer.videoTracks[0].id, "track ids must be unique");

            assert_equals(mediaElement.videoTracks.length, 1, "videoTracks.length");

            assert_equals(mediaElement.videoTracks[0], sourceBuffer.videoTracks[0], "mediaElement.videoTrack == sourceBuffer.videoTrack");

            assert_equals(mediaElement.audioTracks.length, 1, "audioTracks.length");

            assert_equals(mediaElement.audioTracks[0], sourceBuffer.audioTracks[0], "mediaElement.audioTrack == sourceBuffer.audioTrack");

            test.done();

});

    }, "Check that media tracks and their properties are populated properly");

    function verifyTrackRemoval(test, mediaElement, mediaSource, sourceBuffer, trackRemovalAction, successCallback) {

        assert_equals(sourceBuffer.audioTracks.length, 1, "audioTracks.length");

        assert_true(sourceBuffer.audioTracks[0].enabled, "sourceBuffer.audioTracks[0].enabled");

        assert_equals(sourceBuffer.videoTracks.length, 1, "videoTracks.length");

        assert_true(sourceBuffer.videoTracks[0].selected, "sourceBuffer.videoTracks[0].selected");

        var audioTrack = sourceBuffer.audioTracks[0];

        var videoTrack = sourceBuffer.videoTracks[0];

        // Verify removetrack events.

        test.expectEvent(sourceBuffer.audioTracks, "removetrack", "sourceBuffer.audioTracks removetrack event");

        test.expectEvent(sourceBuffer.videoTracks, "removetrack", "sourceBuffer.videoTracks removetrack event");

        test.expectEvent(mediaElement.audioTracks, "removetrack", "mediaElement.audioTracks removetrack event");

        test.expectEvent(mediaElement.videoTracks, "removetrack", "mediaElement.videoTracks removetrack event");

        // Removing enabled audio track and selected video track should fire "change" events on mediaElement track lists.

        test.expectEvent(mediaElement.audioTracks, "change", "mediaElement.audioTracks changed.");

        test.expectEvent(mediaElement.videoTracks, "change", "mediaElement.videoTracks changed.");

        trackRemovalAction();

        test.waitForExpectedEvents(function()

            assert_equals(mediaSource.sourceBuffers.length, 0, "mediaSource.sourceBuffers.length");

            assert_equals(mediaElement.videoTracks.length, 0, "videoTracks.length");

            assert_equals(mediaElement.audioTracks.length, 0, "audioTracks.length");

            assert_equals(sourceBuffer.videoTracks.length, 0, "videoTracks.length");

            assert_equals(sourceBuffer.audioTracks.length, 0, "audioTracks.length");

            // Since audio and video tracks have been removed, their .sourceBuffer property should be null now.

            assert_equals(audioTrack.sourceBuffer, null, "audioTrack.sourceBuffer");

            assert_equals(videoTrack.sourceBuffer, null, "videoTrack.sourceBuffer");

            test.done();

});

    mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)

        var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);

        sourceBuffer.appendBuffer(initSegment);

        test.expectEvent(sourceBuffer, "updateend", "initSegment append ended.");

        test.waitForExpectedEvents(function()

            verifyTrackRemoval(test, mediaElement, mediaSource, sourceBuffer, test.step_func(function ()

                mediaSource.removeSourceBuffer(sourceBuffer);

            }));

});

    }, "Media tracks must be removed when the SourceBuffer is removed from the MediaSource");

    mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)

        var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);

        sourceBuffer.appendBuffer(initSegment);

        test.expectEvent(sourceBuffer, "updateend", "initSegment append ended.");

        test.waitForExpectedEvents(function()

            verifyTrackRemoval(test, mediaElement, mediaSource, sourceBuffer, test.step_func(function ()

                mediaElement.src = "";

            }));

});

    }, "Media tracks must be removed when the HTMLMediaElement.src is changed");

    mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)

        var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);

        sourceBuffer.appendBuffer(initSegment);

        test.expectEvent(sourceBuffer, "updateend", "initSegment append ended.");

        test.waitForExpectedEvents(function()

            verifyTrackRemoval(test, mediaElement, mediaSource, sourceBuffer, test.step_func(function ()

                mediaElement.load();

            }));

});

    }, "Media tracks must be removed when HTMLMediaElement.load() is called");

</script>