[Webkit-unassigned] [Bug 103266] New: TextTrack's .cues not ordered correctly when two cues have the same .startTime

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=103266

           Summary: TextTrack's .cues not ordered correctly when two cues
                    have the same .startTime
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://w3c-test.org/html/tests/submission/Opera/media/
                    interfaces/TextTrack/cues.html
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Media Elements
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: graouts at apple.com
                CC: eric.carlson at apple.com,
                    webkit-bug-importer at group.apple.com


We're failing the fourth test of the Opera-submitted test at http://w3c-test.org/html/tests/submission/Opera/media/interfaces/TextTrack/cues.html. Here, we're failing when changing the startTime of cue id2 to be in range 0-2, while the "id" cue is in range 0-1. The test expects the .cues property be ordered as ["id2", "id"]. The spec shows that our implementation is incorrect per this paragraph right at the end of section 4.8.10.12.1: "any cues with the same start time must be sorted by their end time, latest first" (http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#timed-text-tracks).

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