Instructions for Building and Installing on Arch Linux for OBS (Endeavour OS): CMake + conan

[Savestate2A03]

Instructions for Building and Installing on Arch Linux for OBS (Endeavour OS): CMake + conan

In case it helps anyone here, the latest of conan doesn't work here without some changes.

Pre-build

yay -S cmake libusb libusb-compat sdl2 sdl2_gfx libpulse v4l2loopback-dkms v4l2loopback-utils libxcb libfontenc libice libsm libxaw libxcomposite libxcursor libxres conan sdl glfw glad mesa libao
git clone https://github.com/ChrisAJS/lgx2userspace
cd lgx2userspace

Change GENERATORS in dependencies.cmake (conan 1.x -> 2.x)

-conan_cmake_configure(REQUIRES libusb/1.0.26 sdl/2.26.1 glfw/3.3.8 glad/0.1.36 opengl/system GENERATORS cmake_find_package)
+conan_cmake_configure(REQUIRES libusb/1.0.26 sdl/2.26.1 glfw/3.3.8 glad/0.1.36 opengl/system GENERATORS CMakeToolchain CMakeDeps)

Change glfw::glfw to glfw in dependencies.cmake (conan 1.x -> 2.x)

-set(PLATFORM_LIBS SDL2::SDL2main SDL2::SDL2 glfw::glfw glad::glad libusb::libusb opengl::opengl ${ADDITIONAL_LIBS})
+set(PLATFORM_LIBS SDL2::SDL2main SDL2::SDL2 glfw glad::glad libusb::libusb opengl::opengl ${ADDITIONAL_LIBS})

Build

mkdir build && cd build
cmake .. -DENABLE_LGX_GC550_SUPPORT=ON -DCMAKE_BUILD_TYPE=Release
make
cmake --install .

Change -DENABLE_LGX_GC550_SUPPORT=ON to OFF if you don't want GC550 support.

Note: cmake will take a long time. Also, if the install/build yells about any other dependencies, just install them before running that line again.

Post-build

Run the rules:

sudo cp ../999-avermedia.rules /etc/udev/rules.d/999-avermedia.rules
sudo udevadm control --reload-rules

Unplug and plug in your LGX. Restart your computer if you also recently updated your system (X will fail to create the window if you have)

Set up your v4l2 / pulseaudio

For LGX2

sudo modprobe v4l2loopback video_nr=99 exclusive_caps=1 card_label="LGX2"
pactl load-module module-null-sink sink_name=lgx2 sink_properties=device.description=LGX2
pactl load-module module-remap-source master=lgx2.monitor source_name=lgx2 source_properties=device.description=LGX2Audio

For LGX

sudo modprobe v4l2loopback video_nr=99 exclusive_caps=1 card_label="LGX"
pactl load-module module-null-sink sink_name=lgx sink_properties=device.description=LGX
pactl load-module module-remap-source master=lgx.monitor source_name=lgx source_properties=device.description=LGXAudio

From the build directory, run this:

For LGX2

./src/cli/lgx2userspace -d /dev/video99 -a lgx2

For LGX

./src/cli/lgx2userspace -x -d /dev/video99 -a lgx

OBS Setup

Open OBS, add these sources:

Video Capture

Audio Capture