Automatic tone mapping

[awawa-dev]

It implements my idea resulting from the observation that the captured raw HDR material is quite dark, thanks to which we can recognize it if it does not exceed a certain set brightness level for a certain time. However, exceeding it will be an immediate unambiguous signal that we are dealing with an SDR source.

Implements #749

[awawa-dev]

Hi @AstaRom
As always thanks for the PR that includes the translation of this new feature (#998) 👍 Based on further testing I will add some changes to the description details regarding auto calibration later.

Did you have a chance to test it? I noticed a funny thing that ms2130 reports limited range and max brightness around ~150 (Y) during the calibration, but later after returning to Windows the range is full and max brightness is around 170 (Y). That's why I rise the default Y-threshold to 180, but I'm not sure because it's just Windows and not a video player. 180 may cause less sensitive detection while playing the movies and 160 could be preferable as a default.

BTW when some threshold (Y, U or V) is exceeded, which turns off tone mapping since theoretically we have SDR signal, its value is reported in HyperHDR logs so it can be read and corrected in the config later.

[AstaRom]

Good afternoon.
I would like to try out new features, but unfortunately I won’t be able to do this in the near future (I have started a global renovation of the house, the entire installation has been disassembled, and the TV itself is now packed in the box 😀).

[awawa-dev]

I understand :) Good luck with your project!