Hi All, Harry
If anyone is interested in helping out with this: now is a good time to
step forward.
I know that there have been many discussions about session management tools
and pros and cons and ... etc etc, but it seems like NSM is becoming the de
facto session management system in linux.
On the other hand LV2 plugins are gaining popularity allowing the host
application to handle 'session management' (well sort of)
However, since Hydrogen is a stand alone app and it is impossible to turn
it into a LV2 plugin (see previous discussions) a good session management
system is the only way to use Hydrogen in conjunction with other audio apps
in an efficient way.
Harry is offering us help to implement this frequently requested feature, i
think we should take it
I only i had some programming skills :-(
Hope to hear from you soon !
Grtz
Thijs
2014-05-12 13:08 GMT+02:00 Harry van Haaren <[email protected]>:
> Hey *,
>
> As you may have seen, I've recently offered to help various projects
> support the NSM session manager.
> Thijs has approached me, and shown interest in adding NSM to Hydrogen.
>
> I've just built Hydrogen from git, and am grepping the source to get to
> into it:
> The NSM support should be in Core (since cli / gui usage shouldn't matter
> to session management).
>
> It looks like the AudioOutput base class will need some way to set the
> JACK client name,
> and that the Open / Save routines need to be called from the NSM open/save
> callbacks instead of GUI triggered.
> That's all there is to it really. Some details of course, but that's the
> idea.
>
> The cli / gui have seperate main() functions (i see the LASH /
> jack_session stuff implemented twice). I'll assume that's the way to go for
> NSM too.
>
> On startup we check for NSM_URL, and if active we should grey out
> Open/Save (since this is a session, we know where to open from & save to).
> We need the actual invocation name of the program (so NSM can launch
> Hydrogen when starting a session), which we can grab from argv[0].
>
> Then AudioEngine::create_instance() is called from audioengine_init(),
> which we would need to pass the NSM JACK client name etc to.
> I'd value the opinion of somebody more experienced with the codebase here:
> how can we best move some info to where we instantiate JACK and load a
> session file into hydrogen.
>
> Finally, a callback is needed to check if there are pending OSC messages.
> Best is to set this up in main, and then wait until we are told to load a
> session.
>
> I look forward to your advice and opinions!
> Cheers, -Harry
>
> OpenAV Productions
> www.openavproductions.com
>
>
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