make_it_cool: kdelibs/kdemm

[Matthias Kretz]

On Tuesday 22 March 2005 16:00, Marco Lohse wrote:
> (We will still need an alsa
> audio sink for NMM, but I guess we can provide that sooner or later)

alsa, jack, polypaudio and MAS, I'd say. Looks like quite some work. I believe 
alsa and jack are the two most important PlaybackNodes to have (though 
they're pretty much Linux only).

> > you could also insert some user defined "effect nodes" into that backend
> > - e.g. some equalizer to compansate your crappy notebook speakers. think
> > of your hi-fi amp unit... ;);)
>
> sure, I think Matthias currently prefers to use the NMM LADSPA node for
> that, right?

Yes and no.
Thomas' idea was to use effects in the "soundserver". I don't think we really 
need that. It should be enough if you can insert those effects into the media 
player and save the settings there.
To use effects from a KDE API without deciding on the media framework we need 
some common interface to work with. One common interface we could use is 
LADSPA. Every media framework should support it - AFAIK only gstreamer and 
NMM support it at this point.
But I'm planning on using special interfaces for effects that we know are 
usefull to media player developers. So we would at least define interfaces 
for a Fader and an Equalizer effect. This way you could integrate the EQ into 
your application's skin and implement crossfading.

BTW, if you have more effect interfaces that a media app might need let me 
know.

-- 
C'ya
        Matthias
________________________________________________________
Matthias Kretz (Germany)                          <><
http://Vir.homeip.net/
MatthiasKretz at gmx.net, kretz at kde.org,
Matthias.Kretz at urz.uni-heidelberg.de
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