Re: [Vala] LADSPA bindings

[Al Thomas <astavale yahoo co uk>]

----- Original Message -----
> From: Victor Aurélio Santos <victoraur santos gmail com>
> Sent: Saturday, 10 September 2016, 23:10
> Subject: [Vala] LADSPA bindings

> I'm trying to create LADSPA bindings but no luck.
> I'm stuck at Descriptor's function pointers, can any one help me with this ?


> From https://github.com/swh/ladspa/blob/master/ladspa.h this
looks to be a shared object that needs to have a function
called ladspa_descriptor that returns a constant struct
containing details of the plugin. A constant struct seems
fairly standard for plugins. By the way from what I understand
you are saying it is better to describe your problem as a LADSPA
plugin, rather than a LADSPA binding. A binding is using a
library (shared object) and involves writing a VAPI file, whereas 

a plugin is creating a shared object. 


For an example of a constant struct with function pointers
see the example in https://bugzilla.gnome.org/show_bug.cgi?id=764439
That example is for GStreamer, but should give you enough clues.
If not please give an example of your code that doesn't work.

Al