On Mon, 8 Apr 2002, joy ping wrote:
> On Sun, 7 Apr 2002, [ISO-8859-1] Pasi Kärkkäinen wrote:
>
> > Hmm.. I was thinking more about using many oss apps at the same time.
> >
> > What's wrong with allowing same soundcard opened by multiple programs
> > and the streams from them mixed (in sw or hw) IN alsa?
> >
> > This way you could use many oss/alsa apps directly without soundservers or
> > other extra layers..
> >
> > If I would be interested implementing something like this, where should I
> > start looking at the code..?
>
> look into alsa-lib. get the most 'fresh' code per cvs, cause there are
> some changes to the current tarball. look into the different plugins. i
> assume that you have also take a look in the alsa-core, how the api is
> organized. maybe you can add a shared-access-plugin ;).
> im not sure, but i think this will be really difficult, cause the alsa-api
> has a kind of 'natural' lock- and blocking mechanism. means only one sound
> stream could be sent to an available channel.
>
Hmm.. this makes me think how to create "virtual channels" but maybe I'll
just believe you and stop whining about this and buy better soundcard :)
> the most easiest way would be
> to improve aserver, i think. i forget to mention that it is also possible
> to use the plugins with the oss-emulation, you only have to call the
> plugin 'dsp0' than it is usable by oss-apps too.
>
>
So.. at least first solution would be to write some kind of shared-access
plugin.
- Pasi kärkkäinen
^
. .
Linux
/ - \
Choice.of.the
.Next.Generation.
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