[gst-devel] TI OMAP DSP support

[Felipe Contreras]

On Jan 17, 2008 1:42 AM, g <the_ether2 at yahoo.co.uk> wrote:
> --- Josep Torra Valles <j.torra at telefonica.net> wrote:
> > First I think that you should get more knowledge
> > about the N8x0
> > architecture and the OMAP SoC in order to be able to
> > understand the
> > scenario for your project.
>
> My "project" is simply to decode MPEG video. As stated
> previously the core elements I intend to use are
> already available as plug-ins to GStreamer.
>
> My questions have been whether GStreamer already has
> implemented any DSP acceleration and if not, what the
> performance hit of their absence is compared to the
> potential stated by TI.
>
> > > ffmpeg and xvid are available as plug-ins for
> > > GStreamer and presumably work on Maemo 2008. What
>
> > If just crosscompile you will have something
> > working, but it doesn't
> > mean that the performance will be enough to get VGA
> > at 30 fps.
>
> As stated above, the MPEG decoders ffmpeg and xvid are
> already available as plug-ins for GStreamer. I have
> merely asked what the performance is. Maybe someone
> has already optimised one or both of these for ARM and
> / or the DSP portion of the OMAP2420.
>
> As previously mentioned, a TI article specifically
> states that there is a GStreamer plug-in that uses the
> DSP and yet I cannot find any mention of its existance
> on the GStreamer site.

That article is talking about the DaVinci platform, which is not using OMAP2420.

For DaVinci AFAIK TI developed it's own codec API, something like
OpenMAX IL, and then developed their own GStreamer elements, like
gst-openmax.

-- 
Felipe Contreras