Hi,
Now that Speex is getting pretty stable, I have decided to make a
fixed-point/integer port the #1 priority. At this point, I'm looking for
help from people with prior fixed-point experience and/or a good signal
processing background. Anyone would like to volunteer?
I have already started the port by converting to int some of the most
used functions. While this should only have a small effect on the
encoder, I would expect the decoder to run much faster on processors
that don't have an FPU (e.g. ARM-based PDA). Can anyone with an iPaq (or
similar hardware) confirm that? The code is available here:
http://www.speex.org/misc/speex-1.1-int.tar.gz
Note that there is still lots of work to do before Speex is entirely
converted to fixed-point.
Jean-Marc
--
Jean-Marc Valin, M.Sc.A., ing. jr.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada
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Le dim 28/09/2003 à 19:30, Jean-Marc Valin a écrit :> > Can anyone with an iPaq (or > > similar hardware) confirm that? The code is available here: > > http://www.speex.org/misc/speex-1.1-int.tar.gzIf you still have your Sourceforge account, you can login to the Compile Farm and try to compile Speex on an ARM machine (among others). You can get more information on that at the Surceforge documentation. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Just one thing I forgot to say: you need to add -DFIXED_POINT to the
compile options.
Jean-Marc
Le dim 28/09/2003 à 19:30, Jean-Marc Valin a écrit :> Hi,
>
> Now that Speex is getting pretty stable, I have decided to make a
> fixed-point/integer port the #1 priority. At this point, I'm looking
for
> help from people with prior fixed-point experience and/or a good signal
> processing background. Anyone would like to volunteer?
>
> I have already started the port by converting to int some of the most
> used functions. While this should only have a small effect on the
> encoder, I would expect the decoder to run much faster on processors
> that don't have an FPU (e.g. ARM-based PDA). Can anyone with an iPaq
(or
> similar hardware) confirm that? The code is available here:
> http://www.speex.org/misc/speex-1.1-int.tar.gz
> Note that there is still lots of work to do before Speex is entirely
> converted to fixed-point.
>
> Jean-Marc
--
Jean-Marc Valin, M.Sc.A., ing. jr.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada
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