8 Oct
2009
8 Oct
'09
5:43 p.m.
Stefan Kost schrieb:
Paul Davis schrieb:
Okay I found the other parts in the ardour sources.
On Fri, 2009-01-23 at 20:45 +0200, Stefan Kost
wrote:
After a long time I got back to this and unfortunately it does not work for me :/
uris = lrdf_get_setting_uris (desc->UniqueID);
if (uris) {
guint32 j;
for (j = 0; j < uris->count; j++) {
printf ("setting_uri : %s\n", uris->items[j]);
if ((str = lrdf_get_label (uris->items[j]))) {
printf ("setting_label : %s\n", str);
}
}
lrdf_free_uris (uris);
}
This gives me a lot of
setting_uri : _:genid223061.366f1
but no single label. Also I totally miss how I could acualy load a preset, so
that the values from the preset are acivated in the plugin. Paul Davis schrieb:
given a unique integral ID for a
plugin:
lrdf_uris* set_uris = lrdf_get_setting_uris(id);
if (set_uris) {
for (uint32_t i = 0; i < (uint32_t) set_uris->count; ++i) {
if (char* label = lrdf_get_label(set_uris->items[i])) {
labels.push_back(label);
presets[label] = set_uris->items[i];
}
}
lrdf_free_uris(set_uris);
}
// GTK2FIX find an equivalent way to do this with a vector (needed by
GUI apis)
// labels.unique();
return labels;
On Wed, 2009-01-21 at 23:07 +0200, Stefan Kost
wrote:
> Seems to be a nice library, but it looks already too capable for the task at
> hand. The idea is to agree on a simple format, so that we don't add a hidden
> dependency for a certain library to parse it. Therefore no xml, rdf etc..
No, no, and a hundred times no. This is the code needed in ardour to
load a named preset:
I got ensure in a previous thread, that the rdf approach is
flawed, as you can't
get a list of presets for each plugin. I got no answer how its supposed to work.
What an application would want to do is:
* scan LADSPA_PATH for plugins
* get the rdf blob for each
* build a list of presets for each plugin
I also studies the rdf file I have and I can't find anything that looks like a
list of names parameter sets there. Those are the rdfs that I have.
calf.rdf, cmt.rdf, fa-plugins.rdf, ladspa.rdfs, swh-aux.rdf, swh-plugins.rdf,
swh-scales.rdf, tap-plugins.rdf, tap_reverb.rdf
If I got it right from the few comments in lrdf.h, the presets are most likely
stored in *.n3 files. Lrdf package actualy installs one with the dev package
under /usr/share/doc/packages/liblrdf-devel/examples/preset-in.n3 here. Is is so
that none of the ladspa plugins atualy ship any of those?
Also in ardour I have not yet found a plugin that actualy has presets.
Stefan