[Theora-dev] FW: libtheora in WinCE or PocketPC?

illiminable ogg at illiminable.com
Fri May 19 00:30:24 PDT 2006

I dunno about PocketPC 2003, but in theora-exp there are build 
configurations for windows mobile 5 pocket pc's.

Incidentally, i found that theora-exp while making a very noticable speed-up 
on the desktop make almost no noticable difference when i tried it in 
directshow on the wm5 pocket pc. Performance was pretty average, especially 
if the video isn't the same size as the display area. With controlled 
content, it's acceptable, for random content people might try putting on 
there from their pc, it's kind of hit and miss.

If you do happen to do some arm optimisation let us know!



----- Original Message ----- 
From: "Ralph Giles" <giles at xiph.org>
To: "Thomas Kuglitsch" <tkuglits at edu.uni-klu.ac.at>
Cc: <theora-dev at xiph.org>
Sent: Wednesday, May 17, 2006 11:10 PM
Subject: Re: [Theora-dev] FW: libtheora in WinCE or PocketPC?

> On Wed, May 17, 2006 at 01:18:50PM +0200, Thomas Kuglitsch wrote:
>> >
>> > Has anyone ported 'libtheora' to WinCE or PocketPC 2003?
>> >
> Probably, but I don't really remember.
>> > I seem to recall seeing a Linux ARM port, but I haven't been able to
>> confirm
>> > that, either.  I see there's a "__arm__" compile-time switch in
>> > "SDL_byteorder.h", but that's the only mention I see.
> I'm not aware of any arm-specific optimization for libtheora. The
> autotools build includes a --disable-encode --disable-float config
> for embedded use; to do the equivalent in a different build
> system, define the preprocessor symbols THEORA_DISABLE_ENCODE
> and THEORA_DISABLE_FLOAT and make the appropriate substitutions in the
> source file list based on the same conditional in lib/Makefile.am.
>> > PS: I've been using 'libtheora' for several months now and it's been 
>> > solid
>> > as a rock.  Thanks a million!
> Glad you like it. You might also take a look at the theora-exp decoder
> library at http://svn.xiph.org/experimental/derf/theora-exp/ It has
> some algorithmic speedups over the implementation in libtheora.
> Hope that helps,
> -r
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