[LAD] build problem with ambix plugins + LV2

Matthias Kronlachner m.kronlachner at gmail.com
Tue Oct 14 21:27:13 UTC 2014

On 14/10/14 23:18, Filipe Coelho wrote:
> On 14-10-2014 22:06, Matthias Kronlachner wrote:
>> On 14/10/14 11:06, Filipe Coelho wrote:
>>> 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
>> Thanks Filipe, the UIs do work now.
>> One things is strange though, if you open the UI and close it several 
>> times the GUI moves out of the window.
>> There seems to be something wrong with the window borders.
>> Any idea?
> Probalby some issue in juce.
> Can you link to a screenshot of the issue?
I actually have the same issue when my plugin gets resized in osx. Might 
be the same problem with Juce.

Here are screenshots:
1st time opened: http://imgur.com/1R5CUaI
2nd: http://imgur.com/7vdThSt
3rd: http://imgur.com/2WfZsg9

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