On 10/13/2014 09:41 PM, Matthias Kronlachner wrote:

On 13/10/14 21:34, Filipe Coelho wrote:

Filipe here (Juce-LV2 wrapper author).

What exactly is the problem with the LV2 UI?
Which hosts have you tested it with?
Does the VST UI work?

Are you using the latest juce-lv2 code as available here?
https://github.com/DISTRHO/DISTRHO-Ports/tree/master/libs/juce/source/modules/juce_audio_plugin_client/LV2

If you give me a link to the source I'll have a look at it.

Hi Filipe,
thanks for the reply! I am using the latest version of your wrapper, just got it today from your repo.

You find the plug-ins here: https://github.com/kronihias/ambix

Some VST-UIs work, but not all.
Eg. the decoder vst GUI works, but the LV2 version does only show an empty window.
The encoder GUI crashes, might be OpenGL related.
I tested it with Ardour-3.5.403.

Well after building the LV2 code the issue is clear - you do not have proper URIs for the plugins.
LV2 uses URIs to identify plugins, see http://en.wikipedia.org/wiki/Uniform_resource_identifier

Making the LV2 URI a single plugin name is very wrong and against the spec.
If you don't have a domain you can use "urn:ambix:PLUGIN".
The URI doesn't have to exist on the internet, it's only used locally to identify the plugin.

After setting a proper LV2 URI the UI appears and works as usual [1].

In short, just change the broken JucePlugin_LV2URI macro in your AppConfig.h files for a real URI and it should work.

[1] - http://i.imgur.com/FSqaxn0.png