Video calibration pattern generator

[mcerveny]

Static HDR/HLG is supported in 4k but only @30FPS until some problems will be solved in rockchip kernel code (no documentation available for this). I do not known application that fulfill your exact needs. Probably you can write some code Check this and continue here. You need only DRM part and not MPP part.

1. initialize and check parameters of DRM
   
2. choose size and position manually (not from mpp decoded frame)
   
3. allocate one (or more) DRM buffer and register as framebuffer (fb_id) (choose 10-bit format)
   
4. map DRM buffer to memory and render your test pattern
   
5. set manually (not from mpp decoded frame) static HDR or HDR/HLG metadata (EOTF+COLOR_SPACE+HDR_SOURCE_METADATA) and switch DRM buffer (fb_id) to output
   

Happy hacking !