gPhoto2 plugin does not work, reports missing system library

[n8willis]

I have tested the gphoto2 source plugin ( https://github.com/Atterratio/obs-gphoto ) and it does not work with the OBS studio snap package because it is unable to access the gphoto shared library.

This is on 18.04.

Compiling the plugin places the plugin binary in ~/.config/obs-studio/plugins/obs-gphoto/bin/64bit/obs-gphoto.so -- which is not where the OBS snap binary looks. However, if you copy the plugin binary to the correct spot for the OBS snap to see it, /snap/obs-studio/NNNN/.config/obs-studio/plugins/obs-gphoto/bin/64bit/obs-gphoto.so, then the plugin still does not load. The log reports this as a failure to find the gphoto library:

os_dlopen(/home/username/snap/obs-studio/NNNN/.config/obs-studio/plugins/obs-gphoto/bin/64bit/obs-gphoto.so->/home/username/snap/obs-studio/NNNN/.config/obs-studio/plugins/obs-gphoto/bin/64bit/obs-gphoto.so): libgphoto2.so.6: cannot open shared object file: No such file or directory

Module '/home/username/snap/obs-studio/NNNN/.config/obs-studio/plugins/obs-gphoto/bin/64bit/obs-gphoto.so' not loaded

(For the record, this issue is also reported at obs-gphoto because I'm unclear which project is better positioned for any potential fix.)

This is a plugin that enables the use of tethered gPhoto-supported DSLRs as input sources (at least for Canons), which is highly useful for those of us who have a DSLR that is nicer than our USB or built-in webcam.