Linux (Ubuntu 21.10) GPU Instructions about obs-backgroundremoval

[Maikuh]

Seems to not be working anymore. the git apply command fails; looks like the repo has changed since then and I'm just getting a black screen when enabling the filter.

[royshil]

this is excellent stuff @mproffitt
can you create a pull request?
i'll clean it up for release so that it works alongside the other platforms

[saif-ellafi]

Thanks a lot mproffitt

But what a mess this is for Linux... unfortunately.
Had to go through first this PR #57
In order to be able to build this one.
But then the plugin does not show up in OBS for Ubuntu Studio, apparently only works on OBS Studio 27.1.3? The one with Ubuntu Studio is 27.0.1 I believe... so installing OBS Studio from the PPA removes libobs0 because well the libs in Ubuntu are outdated for that. Even so, I then get a black screen when enabling the background remover...

Guess I'll have to switch to a rolling release distro. Otherwise I'll have to compile obs-studio myself. Or switch to windows...

Dang...

[steepestascent]

this is excellent stuff @mproffitt can you create a pull request? i'll clean it up for release so that it works alongside the other platforms

@royshil #57 is the PR you requested. I was able to build this and run with a GPU on Ubuntu. If you still need time to review other platforms can we update the README in the meantime to let people know GPU works on linux with this PR. If you have already tested the other platforms can we merge #57 to main?

[ngoonee]

Am so glad this has finally been merged. It works fine with 1.7.0, but 1.9.0 requires the includes for cuda_provider_factory.h to be removed from src/background-filter.cpp and src/Model.h

Also as previously mentioned, need to link it to the gpu version of onxxruntime. Selecting CPU or GPU doesn't do anything because it will always use GPU. #57 has some ideas on how to solve this but I have not tried them out as I can't imagine WANTING to use CPU...

[Mte90]

I did also that change in background-filter.cpp on line 190 as on Debian the path is different and the obs_find_module return an empty string

	std::string path = "/usr/lib/x86_64-linux-gnu/obs-plugins/obs-backgroundremoval/";
	path += tf->modelSelection.c_str();
	char* modelFilepath_rawPtr = &path[0];

I also compile everything with those commands:

cd build
cmake -DWITH_CUDA=ON .. && cmake --build . && cmake --install .

mv /usr/local/lib/obs-plugins/obs-backgroundremoval.so /usr/lib/x86_64-linux-gnu/obs-plugins/obs-backgroundremoval.so
rm -fr '/usr/lib/x86_64-linux-gnu/obs-plugins/obs-backgroundremoval'
mv /usr/local/share/obs/obs-plugins/obs-backgroundremoval/ /usr/lib/x86_64-linux-gnu/obs-plugins/

[Mte90]

I had to the blank filter and it was on my tests a wrong compile because wasn't able to find the files, my patch above fix that issue forcing the right path

[ngoonee]

This is no longer working with 0.5.1 (which makes sense as the release does not support CUDA). Will open a separate issue for build problems I'm experiencing.

[grinco]

This is related: #242

[umireon]

Now we have stable CUDA support on Linux so can we close this issue as completed? @royshil

[royshil]

Sure. if anything else CUDA & Linux related pops up we can handle directly