[SDL] More input access, like Video and Sound

[Simon]

Hi there,
   I've been looking for a small thread about accessing webcam graphics 
within an SDL project, if any of you have the references of libraries 
discussed then or if you know any other, could you post it here?

   Also, another interesting output is sound.  Many online games now 
make large use of mics.  You must have heard of ventrilo for example. 
I've been able to write an easy sound input program on linux, by opening 
the /dev/dsp device directly and fetching the sound wave directly from 
the card.  Neat stuff, however, the same kind of neatness is unavailable 
on windows and I'm not sure about mac.  Again, if you know any libraries 
that could help in accessing the sound device's input, please tell us here.

Thanks again,
   Simon