Improving the camera app

I really like the camera command line program, I've been looking for something like this for a long while.
However, the options are very limited, and it also has a small bug, where the max resolution stops at 12 MP rather than 27 MP which is what my phone camera outputs.

I fixed that bug, and started to implement other features, like being able to change the focus distance, iso, exposure, etc. Is there any interest for this code, and would you like it merged with the termux-camera app? If so I can submit a patch soon-ish.
Unfortunately, I am not good at sh scripting, so I can't modify the script that calls the API to add extra options (I am directly invoking the API from command line, and it's a bit ugly). I could use a bit of help on how to pass extra optional arguments.

Start with the camera command-line program and the shell script that calls the API, then compare them with the termux-camera app mentioned in the issue. Review how optional arguments are passed to the API. Done would include a defined set of camera options, support for the phone's maximum resolution, and a clear path for merging the changes.