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sjaehn / BChoppr

An audio stream chopping LV2 plugin
GNU General Public License v3.0
33 stars 3 forks source link

1.10.6: Always says "** jack transport off or halted **" #12

Closed yurivict closed 2 years ago

yurivict commented 3 years ago

Other LV2 plugins work fine on the same system.

OS: FreeBSD 12.2

sjaehn commented 3 years ago

I can't reproduce it on Ubuntu. Would be nice to hear if others can or can't see the same. BTW, it's a bit strange as other plugins use the same algorithm.

I guess that you already tried to start and stop Jack transport. Is the white progression line in B.Choppr moving or not?

yurivict commented 3 years ago

jackd restart doesn't help. B.Slizr has the same problem. Nothing is moving on the screen in B.Choppr.

yurivict commented 3 years ago

B.Jumblr has the same problem.

sjaehn commented 3 years ago

This makes sense. All my transport-dependent plugins show the message upon the same conditions:

  1. Upon instantiation https://github.com/sjaehn/BChoppr/blob/58bfd48441d7fb5799c0193a817776416e8d9129/src/Message.cpp#L23
  2. If the LV2 host-provided time/position parameter drops down below 1.0bpm https://github.com/sjaehn/BChoppr/blob/58bfd48441d7fb5799c0193a817776416e8d9129/src/BChoppr.cpp#L247-L256
  3. Or if the LV2 time/position parameter speed provided by the host is set to 0.0 https://github.com/sjaehn/BChoppr/blob/58bfd48441d7fb5799c0193a817776416e8d9129/src/BChoppr.cpp#L265-L274

Otherwise the messages are deleted. In all these cases, a simple atom message will be sent to the UI via the notify port. If only the DSP-UI communication fails, you would clearly hear the effects of the plugins but the error message would stay there.

I think it is somehow related to https://github.com/sjaehn/BSchaffl/issues/17. Which sound like a jalv/jack1 problem.