How to build this plugin together with obs portable build? #324

I'm not sure why you are looking at the OBS Studio wiki for help on how to build a plugin. It is actually fully explained on the plugin's wiki.

I'm not sure why you are looking at the OBS Studio wiki for help on how to build a plugin. It is actually fully explained on the plugin's wiki.

Thanks @Xaymar , I tried first to build your wiki to get an RPATH issue as stated in https://github.com/void-linux/void-packages/issues/24706#issuecomment-687720959, viz.

-- StreamFX: Using packaged or remote obs-studio.
Linux builds require your install the necessary development packages, take a look at the obs-studio build guide for them.
-- Configuring done
CMake Error at CMakeLists.txt:943 (add_library):
  The install of the StreamFX target requires changing an RPATH from the
  build tree, but this is not supported with the Ninja generator unless on an
  ELF-based platform.  The CMAKE_BUILD_WITH_INSTALL_RPATH variable may be set
  to avoid this relinking step.


-- Generating done
CMake Generate step failed.  Build files cannot be regenerated correctly.

Did I miss something? Thanks,

What CMake version are you using?

Quick googling revealed a potential fix for your platform: https://cmake.org/cmake/help/latest/variable/CMAKE_NO_BUILTIN_CHRPATH.html

Edit: Another way might be to set CMAKE_SKIP_RPATH to YES/TRUE/ON (or CMAKE_SKIP_INSTALL_RPATH)

What CMake version are you using?

cmake-3.18.2_1

Quick googling revealed a potential fix for your platform: https://cmake.org/cmake/help/latest/variable/CMAKE_NO_BUILTIN_CHRPATH.html

Edit: Another way might be to set CMAKE_SKIP_RPATH to YES/TRUE/ON (or CMAKE_SKIP_INSTALL_RPATH)

Thanks @Xaymar .

Configured and compiled. :+1:

-DCMAKE_PACKAGE_PREFIX="build/package" -DCMAKE_INSTALL_PREFIX="build/distrib" -DCMAKE_CXX_COMPILER=g++ -DCMAKE_C_COMPILER=gcc -DCMAKE_SKIP_RPATH="YES"

-- StreamFX: Using packaged or remote obs-studio.
Linux builds require your install the necessary development packages, take a look at the obs-studio build guide for them.
-- Configuring done
-- Generating done
-- Build files have been written to: /home/zenny/Downloads/obs/obs-StreamFX/build/flux

BTW, does it make difference if there are some warnings while compiling and building with cmake?

$ cmake --build "build/flux" --config RelWithDebInfo --target install
[2/73] Automatic MOC and UIC for target StreamFX
AutoGen warning: "SRC:/source/gfx/shader/gfx-shader-param-audio.hpp" is empty.

AutoGen warning: "SRC:/source/gfx/shader/gfx-shader-param-texture.hpp" is empty.

AutoGen warning: "SRC:/source/gfx/shader/gfx-shader-param-matrix.hpp" is empty.

AutoGen warning: "SRC:/source/gfx/shader/gfx-shader-param-audio.cpp" is empty.

AutoGen warning: "SRC:/source/gfx/shader/gfx-shader-param-matrix.cpp" is empty.

AutoGen warning: "SRC:/source/gfx/shader/gfx-shader-param-texture.cpp" is empty.

[7/73] Building CXX object CMakeFiles/StreamFX.dir/source/ffmpeg/tools.cpp.o
../../source/ffmpeg/tools.cpp:28: warning: ignoring #pragma warning  [-Wunknown-pragmas]
   28 | #pragma warning(push)
      |
../../source/ffmpeg/tools.cpp:29: warning: ignoring #pragma warning  [-Wunknown-pragmas]
   29 | #pragma warning(disable : 4244)
      |
../../source/ffmpeg/tools.cpp:34: warning: ignoring #pragma warning  [-Wunknown-pragmas]
   34 | #pragma warning(pop)
      |
../../source/ffmpeg/tools.cpp: In function 'std::vector<AVPixelFormat> ffmpeg::tools::get_software_formats(const AVPixelFormat*)':
../../source/ffmpeg/tools.cpp:204:18: warning: moving a local object in a return statement prevents copy elision [-Wpessimizing-move]
  204 |  return std::move(fmts);
      |         ~~~~~~~~~^~~~~~
../../source/ffmpeg/tools.cpp:204:18: note: remove 'std::move' call
[16/73] Building CXX object CMakeFiles/St....dir/source/encoders/encoder-ffmpeg.cpp.o
In file included from ../../source/encoders/encoder-ffmpeg.hpp:34,
                 from ../../source/encoders/encoder-ffmpeg.cpp:22:
../../source/encoders/handlers/handler.hpp:27: warning: ignoring #pragma warning  [-Wunknown-pragmas]
   27 | #pragma warning(push)
      |
../../source/encoders/handlers/handler.hpp:28: warning: ignoring #pragma warning  [-Wunknown-pragmas]
...

The warnings shown there don't seem to matter much. The AutoGen ones are just Qt being annoying and not liking empty files, while the others are a potential slow down or non-standard behavior.

The warnings shown there don't seem to matter much. The AutoGen ones are just Qt being annoying and not liking empty files, while the others are a potential slow down or non-standard behavior.

Any advice to overcome latter if they are "a potential slowdown"? Thanks!

Either fix them (warnings usually give hints as to what is wrong), or wait until someone else fixes them.

Closing as the original question was solved.