[maemo-developers] [maemo-developers] How to learn DSP development for N800?

[From: Simon Pickering]

> > Well, do you want direct access to DSP or do you want to use just 
> > gstreamer?
> 
> I want to learn how to add new codecs to Maemo. So: Yes, I 
> want direct access to the DSP.
> 
> Basically, I'm asking for what Frantisek just described in 
> his message "Maemo roadmap, SDK improvements..." to this list:
> 
> > - example of simple hello world dsp task with working makefile 
> > including linking phase with dsp bios used on device
> 
> > - source of example audio/video sink - i.e. how to produce 
> audio/video 
> > from the dsp task (=what code to call in dsp bios)

Hear, hear! We do really need something that is specific to this hw and
avs_kernel, and that is known to work. Otherwise we're flailing about and not
sure what's causing problems (and resets).

I also second the request for some more information about the functions compiled
into the avs_kernel.out so that we can use (at least some of) them to access the
audio hardware, etc. without having to reverse engineer/guess the functions.

Hello world style audio and video access examples that compile and run with the
shipped avs_kernel would be great starting points for people who want to hack on
the DSP.

Regards,


Simon