mediasource-removesourcebuffer.html

<!DOCTYPE html>

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

<html>

    <head>

        <title>MediaSource.removeSourceBuffer() 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>

          mediasource_test(function(test, mediaElement, mediaSource)

              var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_VIDEO_TYPE);

              assert_class_string(sourceBuffer, "SourceBuffer", "New SourceBuffer returned");

              mediaSource.removeSourceBuffer(sourceBuffer);

              var sourceBuffer2 = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_VIDEO_TYPE);

              assert_class_string(sourceBuffer2, "SourceBuffer", "New SourceBuffer returned");

              assert_not_equals(sourceBuffer, sourceBuffer2, "SourceBuffers are different instances.");

              assert_equals(mediaSource.sourceBuffers.length, 1, "sourceBuffers.length == 1");

              test.done();

          }, "Test addSourceBuffer(), removeSourceBuffer(), addSourceBuffer() sequence.");

          mediasource_test(function(test, mediaElement, mediaSource)

              assert_throws_js(TypeError,

                          function() { mediaSource.removeSourceBuffer(null); },

                          "removeSourceBuffer() threw an exception when passed null.");

              test.done();

          }, "Test removeSourceBuffer() with null");

          mediasource_test(function(test, mediaElement, mediaSource)

              var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_VIDEO_TYPE);

              assert_class_string(sourceBuffer, "SourceBuffer", "New SourceBuffer returned");

              mediaSource.removeSourceBuffer(sourceBuffer);

              assert_throws_dom("NotFoundError",

                  function() { mediaSource.removeSourceBuffer(sourceBuffer); },

                  "removeSourceBuffer() threw an exception for a SourceBuffer that was already removed.");

              test.done();

          }, "Test calling removeSourceBuffer() twice with the same object.");

          mediasource_test(function(test, mediaElement1, mediaSource1)

              var sourceBuffer1 = mediaSource1.addSourceBuffer(MediaSourceUtil.AUDIO_ONLY_TYPE);

              assert_class_string(sourceBuffer1, "SourceBuffer", "New SourceBuffer returned");

              var mediaElement2 = document.createElement("video");

              document.body.appendChild(mediaElement2);

              test.add_cleanup(function() { document.body.removeChild(mediaElement2); });

              var mediaSource2 = new MediaSource();

              var mediaSource2URL = URL.createObjectURL(mediaSource2);

              mediaElement2.src = mediaSource2URL;

              test.expectEvent(mediaSource2, "sourceopen", "Second MediaSource opened");

              test.waitForExpectedEvents(function()

                  URL.revokeObjectURL(mediaSource2URL);

                  var sourceBuffer2 = mediaSource2.addSourceBuffer(MediaSourceUtil.VIDEO_ONLY_TYPE);

                  assert_class_string(sourceBuffer2, "SourceBuffer", "Second new SourceBuffer returned");

                  assert_not_equals(mediaSource1, mediaSource2, "MediaSources are different instances");

                  assert_not_equals(sourceBuffer1, sourceBuffer2, "SourceBuffers are different instances");

                  assert_equals(mediaSource1.sourceBuffers[0], sourceBuffer1);

                  assert_equals(mediaSource2.sourceBuffers[0], sourceBuffer2);

                  assert_throws_dom("NotFoundError",

                      function() { mediaSource1.removeSourceBuffer(sourceBuffer2); },

                      "MediaSource1.removeSourceBuffer() threw an exception for SourceBuffer2");

                  assert_throws_dom("NotFoundError",

                      function() { mediaSource2.removeSourceBuffer(sourceBuffer1); },

                      "MediaSource2.removeSourceBuffer() threw an exception for SourceBuffer1");

                  mediaSource1.removeSourceBuffer(sourceBuffer1);

                  mediaSource2.removeSourceBuffer(sourceBuffer2);

                  test.done();

});

          }, "Test calling removeSourceBuffer() for a sourceBuffer belonging to a different mediaSource instance.");

          mediasource_test(function(test, mediaElement, mediaSource)

              var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_VIDEO_TYPE);

              assert_class_string(sourceBuffer, "SourceBuffer", "New SourceBuffer returned");

              mediaSource.endOfStream();

              assert_equals(mediaSource.readyState, "ended", "MediaSource in ended state");

              mediaSource.removeSourceBuffer(sourceBuffer);

              assert_equals(mediaSource.sourceBuffers.length, 0, "MediaSource.sourceBuffers is empty");

              assert_equals(mediaSource.activeSourceBuffers.length, 0, "MediaSource.activesourceBuffers is empty");

              test.done();

          }, "Test calling removeSourceBuffer() in ended state.");

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

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

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

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

              sourceBuffer.appendBuffer(initSegment);

              test.waitForExpectedEvents(function()

                  assert_equals(mediaSource.sourceBuffers.length, 1, "MediaSource.sourceBuffers is not empty");

                  assert_equals(mediaSource.activeSourceBuffers.length, 1, "MediaSource.activesourceBuffers is not empty");

                  assert_equals(mediaElement.readyState, mediaElement.HAVE_METADATA);

                  assert_equals(mediaSource.duration, segmentInfo.duration);

                  test.expectEvent(mediaSource.activeSourceBuffers, "removesourcebuffer", "SourceBuffer removed from activeSourceBuffers.");

                  test.expectEvent(mediaSource.sourceBuffers, "removesourcebuffer", "SourceBuffer removed.");

                  mediaSource.removeSourceBuffer(sourceBuffer);

});

              test.waitForExpectedEvents(function()

                  assert_equals(mediaSource.sourceBuffers.length, 0, "MediaSource.sourceBuffers is empty");

                  assert_equals(mediaSource.activeSourceBuffers.length, 0, "MediaSource.activesourceBuffers is empty");

                  test.done();

});

          }, "Test removesourcebuffer event on activeSourceBuffers.");

          mediasource_test(function(test, mediaElement, mediaSource)

              mediaElement.addEventListener('error', test.unreached_func("Unexpected event 'error'"));

              var mimetype = MediaSourceUtil.AUDIO_VIDEO_TYPE;

              var sourceBuffer = mediaSource.addSourceBuffer(mimetype);

              sourceBuffer.appendBuffer(new Uint8Array(0));

              assert_true(sourceBuffer.updating, "Updating flag set when a buffer is appended.");

              test.expectEvent(sourceBuffer, 'abort');

              test.expectEvent(sourceBuffer, 'updateend');

              mediaSource.removeSourceBuffer(sourceBuffer);

              assert_false(sourceBuffer.updating, "Updating flag reset after abort.");

              test.waitForExpectedEvents(function()

                  test.done();

});

          }, "Test abort event when removeSourceBuffer() called while SourceBuffer is updating");

        </script>

    </body>

</html>