[Bug 737708] pngdec: change parse logic

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=737708
  GStreamer | gst-plugins-good | unspecified

Luis de Bethencourt <luis.bg> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #14 from Luis de Bethencourt <luis.bg at samsung.com> 2014-11-04 11:00:10 UTC ---
Fixed the formatting of the commit message and merged!

Vineeth, there is no need for indentation in the commit message. You are
limited to 80 characters in the width of the body so make the most of them.

commit 63e0b292910d51d5e948d25a8aa13b6e73a12278
Author: Vineeth T M <vineeth.tm at samsung.com>
Date:   Tue Nov 4 08:18:41 2014 +0530

    pngdec: change parse logic

    Right now in parse logic the signature is checked every time the parse
function
    is called, and the whole data is the scanned each and every time, even
though the
    data is scanned in the previous instance. Changing the logic such that, we
skip
    the bytes which are already scanned in the previous instances of parse.
This
    helps in avoiding multiple scan of already scanned data/signature.

    https://bugzilla.gnome.org/show_bug.cgi?id=737708

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