[Gereral1]

I can't quite figure out whether your code simply injects HDR10 metadata or it is calculating the EETF for tone mapping. If the latter, are you processing Y'Cb'Cr' or R'G'B'?

Y'Cb'Cr , not rgb. All I know is it looks the same as a store bought UHD disk.. The TV showed HDR tag in Samsung player.PC did not but it's exact picture. HDR is a real simple process. All I'm doing is allowing mpc hc to send exact levels of black to white to HDMI port and the TV can show more stops of dynamic range. This is why I'm saying it will work on LCD TVs but you will be limited by the biggest nit value. If you own an HDR TV you will see duplicate. If not you may get 80% of the HDR image depending on the lcd.or projection. Inject HDR into Blu-ray it looks like a broken TV playing video. But if the material was recorded in log type dull image the HDR will bring the media alive. For those who have tried the HDR slider in win 10 creator update when your HDMI port is set to 422 or 420 the screen goes ghost pale grey. But the HDR looks perfect.

I know this sounds funny but all I am doing is taking reverse material and doing the opposite to get HDR to show. The trigger is set in meta data in different specs. All these triggers do is set min max range from white to black. HDR shows more steps of grey between these 2. Sdi shows less steps. In layman's terms HDR is a greater f stop exposure in video.

Try my HDR on.exe when released then you will see. Give me a week to work out the tiny bugs then I'll let you all use this. I might release it with non madvr support but might offer it later. No sure as I have not tested with this direct show filter. Custom presenter filter works with hardware GPU acceleration in directx full screen mode with yuv thru HDMI. Today is Thursday. I get home on weekends and do not have my computer with me...