[Webkit-unassigned] [Bug 88733] New: [BlackBerry] Unexpected repeats of short media

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Jun 10 07:04:43 PDT 2012


           Summary: [BlackBerry] Unexpected repeats of short media
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit BlackBerry
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mfeil at rim.com
                CC: tonikitoo at webkit.org

The m_userDrivenSeekTimer is causing unwanted repeats of short media such as sound effects because it is causing the current time to not reflect that the media has finished playing. This problem only affects media whose duration is close to or less than the SeekSubmissionDelay, which is currently set to 100ms. My fix is to ignore the userDrivenSeekTimer in MediaPlayerPrivate::currentTime() if the duration of the media is within twice the SeekSubmissionDelay. Seek drag smoothness (the original reason for the timer) is a non-issue for such short media.

I discovered this problem on the BrickBreakerRevolution game. The sound of the ball hitting the paddle or bricks would repeat. I have written an automated test using a sound effect from the game.

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