Re: [linux-audio-dev] LADSPA Specs ?

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Subject: Re: [linux-audio-dev] LADSPA Specs ?
From: Stefan Kost (kost_AT_imn.htwk-leipzig.de)
Date: Fri May 10 2002 - 17:07:46 EEST

Hi Conrad,

this is even better (and what I was probably hinting at). Presets should be then even deeper under
$LADSPA_PATH/share/ladspa/presets/[plugin]/
and $LADSPA_PATH is our $PREFIX
For the plugins it could be considered to further divide it into
$LADSPA_PATH/lib/ladspa/
   producers/ (no input, just outputs = synths, audio-ins, file-ins)
   operators/ (input and outputs = fx)
   consumers/ (inputs, but no outputs = audio-outs, file-outs, analysers)

Stefan
> On Wed, May 08, 2002 at 01:08:19PM +0200, Stefan Kost wrote:
>
>>Hi,
>>
>>>On Tue, 7 May 2002 xavier.moulet_AT_free.fr wrote:
>>>
>>>
>>>
>>>>Idem for presets : this subject has been discussed a lot, but how do we store
>>>>them and where, finally ?
>>>
>>>
>>>Where? That was never really decided. I think the idea was to have one
>>>under $LADSPA_PATH/presets and that others could be added as well. I
>>>don't know of any programs that do this now.
>>
>>The use of libxml(2) is what I would recommend too. For the path I would suggest
>>$LADSPA_PATH/share/presets/[plugin]/
>>
>>Ideally the LADSPA plugins would be in in $LADSPA_PATH/lib
>>Tools (like listplugins) could be in $LADSPA_PATH/bin
>
>
> the directories used should follow the FHS (filesystem heirarchy standard:
>
> http://www.pathname.com/fhs/
>
> (AFAIK required by most distros). This would mean the following directories:
>
> plugins: $PREFIX/lib/ladspa/
> tools: $PREFIX/bin/
> presets: $PREFIX/share/ladspa/
>
> for package installations where $PREFIX is /usr, assuming all this data
> can be installed read-only. For consistency, installations in other
> directories (eg. /usr/local/ rather than /usr) should work similarly.
> Read-write data (such as user-saved params) should go in the user's home
> dir (~/.ladspa) or /var/share/ladspa.
>
> We shouldn't encourage putting everything under one dir (such as
> /opt/ladspa or /usr/local/ladspa). The rationale for all this is outlined
> in the intro to section 2 of the FHS, and is to do with allowing the
> software to be installed on shared filesystems for multiple architectures.
>
> Conrad.
> 

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