kbarni
commented
2 years ago It seems that lccv and your program use different OpenCV installations. Try to change the Code::Blocks build file to use OpenCV 4.0.5 or vice versa.
Closed baqwas closed 2 years ago
kbarni
commented
2 years ago It seems that lccv and your program use different OpenCV installations. Try to change the Code::Blocks build file to use OpenCV 4.0.5 or vice versa.
Hello!
Apologies for raising this user/operator error as an issue but I need your indulgence, please.
I am using Code::Blocks with your sample takephoto with resolution as the only modification. The code compiles without any errors or warnings (i.e. all include files are pulled in correctly). Unfortunately, the build fails with the following message:
||warning: libopencv_core.so.405, needed by /usr/local/lib/arm-linux-gnueabihf/liblccv.so, may conflict with libopencv_core.so.4.5|The linker options include declarations for library files as follows:
/usr/lib/arm-linux-gnueabihf/libcamera.so /usr/local/lib/arm-linux-gnueabihf/liblccv.so /usr/local/lib/libopencv_core.soLCCV was built using your CMake instructions. Unfortunately, a modified CMake (excluding takevideo and correctly referencing the OpenCV and libcamera files) wouldn't build the example as a standalone executable because it couldn't find the OpenCV core library.
The platform is Raspberry Pi Zero under Bullseye. I can use the camera with GStreamer but as you can understand a lighter wrapper would be best for RPi0 work. I've read the Q-Engineering tutorial using your library but I guess I got myself into knots trying to adapt your CMakeLists.txt for equivalent use in Code::Blocks. The only extra statement in the CMakeLists.txt was the reference to the OpenCV library (and deleting the takevideo statement).
As you can imagine, I'm very naive about CMake/CCMake and Code::Blocks. I know that your repository should not be the first resort for 3rd party guidance but by adapting to your instructions for my simple exercise I should be able to get going with my use of the Raspberry Pi Camera under Bullseye (and avoid the heavy lifting from GStreamer). Getting LCCV to work under Code::Blocks will be a very big step for me. Thanks for your understanding.
Kind regards.
P.S.
The full error message at the Build step is:
||warning: libopencv_core.so.405, needed by /usr/local/lib/arm-linux-gnueabihf/liblccv.so, may conflict with libopencv_core.so.4.5|I am not designating any version suffix for shared libraries in Code::Blocks build options.