thanks for all the time and effort put into this project, i hope my first post can give you something back.
I wanted to use my 4-channel USB-soundcard (Focusrite Saffire 6 USB) to drive a 2.1 speaker system. Having LibreELEC running on a Odroid C2 i used PulseAudio to stream audio to another BananaPi which did the filtering using Richard Taylors rt-plugins hosted on PulseAudio-module module-ladspa-sink.
Using 2 SBCs seemed overkill so i tried to embed Richards plugins into LibreELEC. The process was quite simple, starting out by setting up the build-environment as described in the Wiki, creating the appropriate package under packages/audio/rt-plugins and the corresponding package.mk file.
You can checkout my current result on GitHub - chipfunk/LibreELEC.tv at feature/rt-plugins.
- fix include-path for ladspa.h as its currently fixed for my setup
ATM i have to build the complete image to have the rt-plugins available, maybe i will have the time to make it an optional add-on.
Please feel free to ask further questions.