You need to build a shared library and place it into the
interfaces/IDirectFBImageProviders and interfaces/IDirectFBVideoProviders
directory (under /usr/lib/directfb-1.xxx).
The shared library must have correct entry/exit point provided.
DirectFB will then load each in turn - if loaded it will call the Probe
function.
This function can look at the filename extension and decide if it can handle
the file. If it can it reports TRUE else FALSE.
If you return FALSE it will load the next shared library and repeat until it
has exhausted all options.
If True is returned it will create the instance and then you can call PlayTo /
RenderTo etc
Hope this helps
Dan
Daniel Laird
danieljla...@hotmail.com
From: cmatsu...@control4.com
To: directfb-dev@directfb.org
Date: Wed, 28 Oct 2009 07:54:29 -0600
Subject: [directfb-dev] Custom ImageProvider/VideoProviders
I wondering how I can add a custom ImageProvider. I would also like to know
how does directFB know how to use my custom image provider. I have looked at
the idirectfbimageprovider_jpeg.c and gfxdrivers/sh772x/sh7722_jpeg.c. I
wondering how DirectFB knows when when to use one provider over another. Can
some one give me some hints.
Thanks,
Craig
--
Craig Matsuura - Principal Engineer
Control4
11734 South Election Road - Suite 200
Salt Lake City, UT 84020-6432
PH: 801-523-3161
FX: 801-523-3199
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