How to work on 64bit OS

[Son-kun]

Hi, I'm trying to get picture using picam on RPi CM (64 bit OS) and I still fail.
Is any option to use picam on CM4?
MMAL it's not working (UnsatisfiedLinkError: no mmal in java.library.path), I read about using libcamera instead of picamera, but I'm not sure how use it on java.

[caprica]

MMAL is a library provided by the OS on Pi.

If Java can't load it, it most likely means that you are mismatching your CPU architectures somewhere.

So if your OS is 64-bit, then presumably MMAL is 64-bit, but is your JVM also 64-bit?

[caprica]

It's been a while since I have worked on this project, but depending on which version of this library you're using you may also need to rebuild the picam native library, because I only ever developed this against a 32-bit OS.