third_party/WebKit/LayoutTests/http/tests/media/media-source/mediasource-config-changes.js

   1 // Extract & return the resolution string from a filename, if any.
   2 function resolutionFromFilename(filename)
   3 {
   4     resolution = filename.replace(/^.*[^0-9]([0-9]+x[0-9]+)[^0-9].*$/, "$1");
   5     if (resolution != filename) {
   6         return resolution;
   7     }
   8     return "";
   9 }
  10
  11 function appendBuffer(test, sourceBuffer, data)
  12 {
  13     test.expectEvent(sourceBuffer, "update");
  14     test.expectEvent(sourceBuffer, "updateend");
  15     sourceBuffer.appendBuffer(data);
  16 }
  17
  18 function mediaSourceConfigChangeTest(directory, idA, idB, description)
  19 {
  20     var manifestFilenameA = directory + "/test-" + idA + "-manifest.json";
  21     var manifestFilenameB = directory + "/test-" + idB + "-manifest.json";
  22     mediasource_test(function(test, mediaElement, mediaSource)
  23     {
  24         mediaElement.pause();
  25         test.failOnEvent(mediaElement, 'error');
  26         var expectResizeEvents = resolutionFromFilename(manifestFilenameA) != resolutionFromFilename(manifestFilenameB);
  27         var expectedResizeEventCount = 0;
  28
  29         MediaSourceUtil.fetchManifestAndData(test, manifestFilenameA, function(typeA, dataA)
  30         {
  31             MediaSourceUtil.fetchManifestAndData(test, manifestFilenameB, function(typeB, dataB)
  32             {
  33                 assert_equals(typeA, typeB, "Media format types match");
  34
  35                 var sourceBuffer = mediaSource.addSourceBuffer(typeA);
  36
  37                 appendBuffer(test, sourceBuffer, dataA);
  38                 ++expectedResizeEventCount;
  39
  40                 test.waitForExpectedEvents(function()
  41                 {
  42                     // Add the second buffer starting at 0.5 second.
  43                     sourceBuffer.timestampOffset = 0.5;
  44                     appendBuffer(test, sourceBuffer, dataB);
  45                     ++expectedResizeEventCount;
  46                 });
  47
  48                 test.waitForExpectedEvents(function()
  49                 {
  50                     // Add the first buffer starting at 1 second.
  51                     sourceBuffer.timestampOffset = 1;
  52                     appendBuffer(test, sourceBuffer, dataA);
  53                     ++expectedResizeEventCount;
  54                 });
  55
  56                 test.waitForExpectedEvents(function()
  57                 {
  58                     // Add the second buffer starting at 1.5 second.
  59                     sourceBuffer.timestampOffset = 1.5;
  60                     appendBuffer(test, sourceBuffer, dataB);
  61                     ++expectedResizeEventCount;
  62                 });
  63
  64                 test.waitForExpectedEvents(function()
  65                 {
  66                     // Truncate the presentation to a duration of 2 seconds.
  67                     assert_false(sourceBuffer.updating, "sourceBuffer.updating");
  68
  69                     mediaSource.duration = 2;
  70
  71                     assert_true(sourceBuffer.updating, "sourceBuffer.updating");
  72                     test.expectEvent(sourceBuffer, "updatestart");
  73                     test.expectEvent(sourceBuffer, "update");
  74                     test.expectEvent(sourceBuffer, "updateend");
  75                 });
  76
  77                 test.waitForExpectedEvents(function()
  78                 {
  79                     mediaSource.endOfStream();
  80
  81                     if (expectResizeEvents) {
  82                         for (var i = 0; i < expectedResizeEventCount; ++i) {
  83                             test.expectEvent(mediaElement, "resize");
  84                         }
  85                     }
  86                     test.expectEvent(mediaElement, "ended");
  87                     mediaElement.play();
  88                 });
  89
  90                 test.waitForExpectedEvents(function() {
  91                     test.done();
  92                 });
  93             });
  94         });
  95     }, description, { timeout: 10000 } );
  96 };