[tim-janik/beast] LV2 support (#149)

[Stefan Westerfeld <notifications github com>]

I've been working on LV2 support. This is work in progress, so I'm submitting the current version here, while I know the code is somewhat incomplete. As discussed previously, there is no custom UI support yet, and should be added once we have out-of-process support.

• the ringbuffer is a copy from jack driver, so probably we should have Bse::FrameRingBuffer and Bse::RingBuffer implemented in bse/ringbuffer.hh and used by both
• the code is used by specifying at LV2 URI (defaults to zynaddsubfx), like

LV2URI=http://synthv1.sourceforge.net/lv2 make run # synth
LV2URI=http://calf.sourceforge.net/plugins/Monosynth make run # synth
LV2URI=urn:ardour:a-reverb make run # stereo effect

• preset loading should not be done in RT thread (as discussed in last meeting), and notify UI, too
• there should be a way to select which plugin to use (LV2URI) other than commandline

---

You can view, comment on, or merge this pull request online at:

  https://github.com/tim-janik/beast/pull/149

Commit Summary

• DEVICES: lv2device: initial LV2 support
• DEVICES: lv2device: support setting URI via env variable for testing
• DEVICES: lv2device: map for plugin input control ports to device params
• DEVICES: lv2device: activate instance before using it
• DEVICES: lv2device: add initial supports for presets
• DEVICES: lv2device: refactor plugin instance preset initialization
• DEVICES: lv2device: add internal API to unmap urid -> string
• DEVICES: lv2device: initial implementation for worker extension
• DEVICES: lv2device: use semaphore to synchronize worker thread
• DEVICES: lv2device: join worker thread if plugin instance is deleted
• DEVICES: lv2device: fix crash if no presets are available
• DEVICES: lv2device: deactivate instance during destructor
• DEVICES: lv2device: support plugins with audio input
• DEVICES: lv2device: free instance when done, handle failed instantiate

File Changes

• M config-checks.mk (2)
• A devices/lv2device/lv2_evbuf.cc (276)
• A devices/lv2device/lv2device.cc (937)
• A devices/lv2device/ringbuffer.hh (266)

Patch Links:

• https://github.com/tim-janik/beast/pull/149.patch
• https://github.com/tim-janik/beast/pull/149.diff

—
You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub, or unsubscribe.