[linux-audio-dev] TAP-plugins reverb presets

Alfons Adriaensen fons.adriaensen at alcatel.be
Thu Mar 4 15:59:31 UTC 2004


On Thu, Mar 04, 2004 at 03:27:32PM +0000, Steve Harris wrote:
> On Thu, Mar 04, 2004 at 03:57:32 +0100, Dr. Matthias Nagorni wrote:
> > On Thu, 4 Mar 2004, Uwe Koloska wrote:
> > 
> > > isn't the right thing to do to use the RDF metatadata?
> > 
> > The combination of the very simple LADSPA api with something as 
> > complicated as RDF seems a bit odd to me. I would wish if there was a 
> > simpler solution. 
> 
> RDF is very simple - RDF syntax and RDF Schema may be complex, but RDF is
> not.
> 
> In any case all of this is wrapped by the lrdf library. I can understand
> the objection to another library though :)

I'd like to throw in some Eurocents: 

I had a look at the TAP RDF file, and compared the useful contents to the 
file lenght. The ratio of these two puts RDF in the 'bloated' category.
And it's not easy to read or write at all.

What is more disturbing is that there are now at least 3 ways to obtain info
on a LADSPA plugin port:

1. form the port descriptors, 
2. by interpreting the name of the port (e.g. 'latency'),
3. from the RDF file, which may repeat or contradict some of 1.

To me this is a mess. It should be perfectly possible to extend the port
descriptors in such a way that things like preset names, scale ticks, 
units etc. are available from there. 

-- 
Fons







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