Compatibility issue with the obs-studio ppa about obs-backgroundremoval

[tomchiverton]

i have this issue too, but can't even get it to build.

I have the latest OBS PPA version, so thought this would be OK : LIBOBS_INCLUDE_DIR=/usr/include/obs cmake ..

But this moans

CMake Error at /usr/share/cmake-3.16/Modules/FindPackageHandleStandardArgs.cmake:146 (message):
  Could NOT find LibObs (missing: LIBOBS_INCLUDE_DIR)
Call Stack (most recent call first):
  /usr/share/cmake-3.16/Modules/FindPackageHandleStandardArgs.cmake:393 (_FPHSA_FAILURE_MESSAGE)
  external/FindLibObs.cmake:97 (find_package_handle_standard_args)
  CMakeLists.txt:69 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/falken/obs-background/obs-backgroundremoval/build/CMakeFiles/CMakeOutput.log".

how did you get it to even compile ?

[tomchiverton]

The magic is cmake .. -DLIBOBS_INCLUDE_DIR=/usr/include/obs

Then after build

 sudo mv  /usr/local/lib/obs-plugins/obs-backgroundremoval.so /usr/lib/obs-plugins/ ; sudo mv /usr/local/share/obs/obs-plugins/obs-backgroundremoval /usr/share/obs/obs-plugins/

The 'tar' command from main instructions neds to be run with sudo too

Running obs from the cli lists

info:     obs-backgroundremoval.so

as a loaded module, hurrah !

Works, no crash.

[chickencoding123]

@tomchiverton Unfortunately that did not fix it for me. It crashes after I add the filter from the list of filters on the video source. I installed it without using the above patch by just updating the flag and running the mv. Filter does show up in cli and in the list of filters on camera source inside obs UI.

Thinking graphic card which I do not have and rely on integrated graphics, but I thought ONNX runs on CPU anyways. Not sure what the segmentation fault is about. Did you get to actually add the filter and use it successfully?

[tomchiverton]

Yup, streamed into Webcamoid and Skype fine.

My machine has a AMD Radeon graphics card (low profile, OptiPlex 9020, Intel i7 ~3Ghz) but the filter says it's using "CPU" in the options.

[chickencoding123]

@tomchiverton lucky you. I did more investigation and seems like something is missing on my machine. Not sure what though:

#1  0x00007f57492ab6b0 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator=(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&) () from /lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007f5711e50182 in filter_update(void*, obs_data*) () from /usr//lib/obs-plugins/obs-backgroundremoval.so
#3  0x00007f5711e502d4 in filter_create(obs_data*, obs_source*) () from /usr//lib/obs-plugins/obs-backgroundremoval.so

The only thing that made sense was this:

314	../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S: No such file or directory.

So this std lib is looking for something and I have no idea how to find out what is missing on my system.

Edit
I'm going to close this since it seems like it's not an issue. Unfortunately I found this which mentions a similar crash due to CPU make or model.