Re: LV2 question

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On 4/11/20 4:33 PM, Will Godfrey wrote:
There is something odd about the way locations are handled in LV2. It shouldn't
matter which lib location is used, but it seems it does with some hosts.

I've got into the habit of putting symlinks all over the place to resolve
this :(

On Sat, 11 Apr 2020 16:17:03 -0400
Tim <termtech@xxxxxxxxxx> wrote:

Hi Will. It's not a path thing, the plugin is just missing the manifest.

On a coding note, MusE allows the user to choose the LV2 paths,
 but since MusE uses lilv_world_load_all(), the only way to inform
 LV2 of these paths is to somewhat awkwardly set the LV2_PATH
 environment variable before calling lilv_world_load_all().
But hey, it works.

Had we used lower-level calls (walk the tree ourselves etc.)
 we might be able to set the paths with the various lower-level
 LV2 function calls.

Tim.


Hi. I've been getting errors with this plugin for some time now.

lilv_world_load_file(): error: Error loading file
`file:///usr/lib64/lv2/gx_colwah.lv2/manifest.ttl'

error: failed to open file /usr/lib64/lv2/gx_wah.lv2/gx_colwah.ttl (No
such file or directory)

It looks like an oversight bug, missing the manifest.
See if the author chimes in here...

Tim.

On 4/11/20 11:58 AM, Jeanette C. wrote:
Hey hey,
I ran into some trouble with LV2 plugins and Ecasound, which uses
liblilv. This was exemplified - in my case - with gx_colwah (from the
guitarix suite). Ecasound tried to load the file manifest.ttl.

I noticed that gx_colwah.lv2 didn't contain a manifest.ttl, but a
gx_colwah.ttl .

Would the two fulfill the same function? Is it a more recent part of the
standard to allow/force a file like plugin_name.ttl instead of
manifest.ttl.

Could all this be an issue within liblilv (0.,24.6 installed here) or
would it be the host application. i.e. Ecasound which enforces that
behaviour?

Apologies for the probably overcomplicated questions, but my
understanding of the LV2 format is uite limited.

Best wishes,

Jeanette
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