[Speex-dev] speex dsp as a gstreamer plugin

Christophe Augier
2006-01-17T01:03:32Z

>    I'm porting speex as a DSP task to run using the DSP gateway
project.
> I have some results, but I still need some improments, because I'm
still getting
> some error messages in the mail box system... If someone wants to
> help... it would
> be useful.

that's some good news. I think I won't be of much help except for
testing but i would be glad to invest some time in it.

What can of hardware are you running ?

- Christophe

>
> 2006/1/16, Ralph Giles <giles@xiph.org>:
> > On Mon, Jan 16, 2006 at 04:43:56PM +0100, Christophe Augier wrote:
> >
> > > i'm not an expert in dsp but i've seen there is some code
to run speex
> > > on omap C5X dsp so i was wondering what is the status of this
code.
> > > Actually my goal is to run a voip application which uses
gstreamer on
> > > an OMAP 5912 board. As there is already a speex codec for
gstreamer, i
> > > was wondering if this plugin can already use the dsp power or if
there
> > > is the need for a new plugin.
> >
> > People have ported it to the TI C5x dsp, and at least some of the
> > changes have been merged into the development tree. Check the list
> > archives for details.
> >
> > However, AFAIK those were straight ports. To run on the omap, with
> > gstreamer itself presumedly running on the ARM side will require some
> > code changes. Basically you have to compile the speex codec as a
> > separate module to load into the DSP and then modify the speex plugin
> > to send it buffers instead of doing the decode directly.
> >
> > I guess that could be done either as a from-scratch plugin or as a
> > modification, depending on your programming style.
> >
> > If you get this working and can release the source, I'd really
like
> > to see it. Would be wonderful to have DSP speex running on my Nokia
770.
> >
> > HTH,
> >  -r
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> > Speex-dev@xiph.org
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> >
>
>
> --
> Eduardo Bezerra Valentin
> Bacharelado em Ci?ncia da Computa??o - DCC - UFAM
> Laborat?rio de VoIP - GRSD - UFAM
>