Finally, I managed to figure out all my code and make a hack with Panasonic-like recording indication based on firmware v0.93!

My first changelog:

• Added automatic non-switchable red Panasonic-like recording indication along the edges of the HDMI-output

All the source code of the added patches is here:

https://github.com/storyboardcreativity/Z-Camera-E2-Firmware-Hack

The instructions for self-assembly of the firmware are described by me in general form here:

https://github.com/storyboardcreativity/Z-Camera-E2-Reverse-Engineering

I draw your attention that this firmware is NOT OFFICIAL, and also remind you that you do any manipulations with the camera at your own peril and risk! From now on, I disclaim responsibility for possible problems with the camera if you decide to use the assembled firmware! Be extremely careful!

IMPORTANT! The hack is based on Z-CAM E2 firmware v0.93. Therefore, it will work ONLY in conditions where the official firmware v0.93 is running. For example, if you already have firmware v0.95 or higher on your camera, then installing firmware v0.93 (according to the assurances on the official Z-CAM website) is impossible! Consider this! The easiest way is to first roll v0.93 onto the camera, and then on top of it install my hack. So you can be sure that if the camera does not start after the first firmware installation process, this has nothing to do with the hack itself.

How to start using hack:

1. Your camera must be flashed to the official version 0.93.
2. Download the firmware file from the link.
3. Put the downloaded update.zip file in the root of your camera's disk.
4. Flash in the standard way as if it were an official firmware.

Custom firmware file link: https://drive.google.com/file/d/1GijjGMIjitrbCn3K4gdk3OxCYkQl__Sf

I did see something about OpenCL as CUDA alternative.