Video calibration pattern generator
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 Smile 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 !
I left this community in Aug 2019 due to PINE64 refusal to produce/deliver ROCK64-1G version 3 after more than one year of changing statuses to "planning", "evaluating", "releasing", "availability", "estimated availability" and finally "no schedule" Angry. ROCK64 is dead platform without any advantage. Buy Raspberry PI 4 !

Messages In This Thread
Video calibration pattern generator - by dschlic1 - 03-29-2018, 11:49 AM
RE: Video calibration pattern generator - by mcerveny - 03-29-2018, 03:36 PM

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