On 3/11/20 11:43 PM, Ted Felix wrote:
  Just wondering why folks want LV2 support.  Not that I'll ever get to it, but some justification will help focus the effort.  Thanks.

I've been ignoring the issue for quite a few years, but I spent some time today looking at what lv2 is, what plugins are out there, what supports them, etc., and I have to say I wouldn't mind trying some of those out.

One of the biggest problems I can imagine is that lv2 can be the equivalent of either LADSPA or DSSI, or maybe even both in one (I didn't dive that deeply). Chris Cannam was one of the original creators of DSSI, and Rosegarden was one of the original hosts. There's a pretty clear divide between "audio plugin" and "synth plugin" in Rosegarden, although under the hood they do have significant redundancy, if not actual overlap (and I'm not sure which, as I haven't been in that code in eons). That might make things tricky.

Finally, there's the real question of who would use it. Synth plugins are arguably useful to Rosegarden users, but audio plugins are pretty irrelevant except in connection with synth plugins. Nobody uses the audio features. I would have tried if I had been able to get my audio rack to work with Linux, but I would have ended up having to use something more robust myself. Rosegarden is missing a lot of functionality, and the Linux audio community is totally dominated by Ardour, so even if we built it, nobody would use it. If we were doing Rosegarden from scratch, there would just be no point in including audio features at all.

So I come down as kind of meh on the whole thing. It would be neat to play with if it doesn't require massive investment of effort on your part, but the reality is you're probably going to see really limited returns from the community. If you build it, they might come, or they might just yawn.

D. Michael McIntyre

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