top-down vs bottom-up DIBs

[Julien Isorce]

Hi,

From gstreamer video source elements, is there a way to choose top-down or bottom-up DIBs (device-independent bitmaps) like shown in this article:
http://msdn2.microsoft.com/en-us/library/ms787796(VS.85).aspx
?

Sincerely

Julien

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[Edward Hervey-2]

Hi,

  For all plugins outputting/consuming raw [A]{RGB|YUV} in GStreamer I'm
pretty sure the convention is top-down. We don't have a way to specify
the direction in the caps currently, although it could be added... which
would mean adding support of that caps in all plugins that handle raw
video (and that's LOT of plugins).

    Edward

On Wed, 2008-04-09 at 10:59 +0200, Julien Isorce wrote:

> Hi,
>
> From gstreamer video source elements, is there a way to choose
> top-down or bottom-up DIBs (device-independent bitmaps) like shown in
> this article:
> http://msdn2.microsoft.com/en-us/library/ms787796(VS.85).aspx 
> ?
>
> Sincerely
>
> Julien
> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
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--
Edward Hervey
Lead Platforms Engineer / Director
Collabora Multimedia


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[Julien Isorce]

Ok.  Bottom-up is something weird and it seems to come from MS windows. But a mutli-platform framework required some modularity (do not know if it is the exact word !). That's the big point isn't !

Specify the direction in the caps, as you said, could be a first step.

Thx a lot.

Julien

2008/4/9, Edward Hervey <[hidden email]>:

Hi,

  For all plugins outputting/consuming raw [A]{RGB|YUV} in GStreamer I'm
pretty sure the convention is top-down. We don't have a way to specify
the direction in the caps currently, although it could be added... which
would mean adding support of that caps in all plugins that handle raw
video (and that's LOT of plugins).

    Edward


On Wed, 2008-04-09 at 10:59 +0200, Julien Isorce wrote:
> Hi,
>
> From gstreamer video source elements, is there a way to choose
> top-down or bottom-up DIBs (device-independent bitmaps) like shown in
> this article:
> http://msdn2.microsoft.com/en-us/library/ms787796(VS.85).aspx
> ?
>
> Sincerely
>
> Julien

> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
> Don't miss this year's exciting event. There's still time to save $100.
> Use priority code J8TL2D2.
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel

--
Edward Hervey
Lead Platforms Engineer / Director
Collabora Multimedia

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