[VictorLS]

Tone mapping is required to correctly display any HDR encoding (typ 1080p Hevc 10bit HDR encode from UHD bluray) displayed on a Standard Dynamic Range computer screen (almost all current monitors are non-HDR)
mpc-hc doesn't do any tone mapping by default: so colors look washed out. If you enable the provided Convert HDR to SDR.hlsl shader, the results seem quite watchable for HDR content. It's also a reasonably lightweight shader (1 texture, 44 arithmetic).

So, I was right when wrote "MPC-HC must output to madVR or use Convert HDR to SDR.hlsl shader with any other renderer to achieve such results"

mpc-be and vlc come with built-in SDR Tone mapping, which is applied automatically (there doesn't seem to be a setting to deactivate it).

You're right.

The samples in your first post here https://forum.doom9.org/showthread.php?t=176909
seem like a good starting point regarding the specific case of Hybrid Log-Gamma (HLG) HDR used in some satellite broadcasts(RTL title screen).

Some people said this is bad point so I hard work to write red-flagged F1 to someone do right shader with colorimeter
SDR FullHD H.264 20190511-130113_ARENA HD_flag.ts (38 MB) https://yadi.sk/i/HiuZ5Rb2RKkc0g
HLG 4K H.265 20190511-152944_RTL UHD_flag.ts (67 MB) https://yadi.sk/i/985DVw34OHQrrA

-20190831-160457_RTL UHD.mkv (UHD-50 hevc 10bit HLG HDR 41Mbps): quite specific sample because it contains a lot of white smoke.

I've uploaded that to see how new HLGtoSDR shader shows grass - it's looking ugly now with or without tonemapping in ordinary DirectShow players.

I actually prefer no tone mapping on this sample vs oversaturated result.

You're right but I'd want get VLC (OpengGL output in Win7 or D3D11 output in Win8-10) colors with HLGtoSDR shader

Also, on my PC performance is awful with VLC with these 2 samples.

and weak PC can't stop experiments with colors because of watching mostly in pause mode