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Asmodian · 3rd December 2017, 07:59

Your 1 - 3 do not indicate HDR. 4:2:0 and limited range are standard for everything back to DVDs. Video with BT.2020 color primaries is usually HDR, but not always.

4 being non-constant and the presence of 5 - 7 all indicate it is encoded as HDR video. 5 - 7 is the "HDR metadata" you may have seen discussed.

Edit: I got confused on this point again.

BT.2020 non-constant would also be used for SDR BT.2020, it is BT.2020 constant that would most likely be HDR. I believe most HDR material out today is BT.2020 non-constant anyway. The constant or non-constant refers to linear or gamma like transfer functions, constant is linear.

3rd December 2017, 07:59	#2 \| Link
Asmodian Registered User Join Date: Feb 2002 Location: San Jose, California Posts: 4,407	Your 1 - 3 do not indicate HDR. 4:2:0 and limited range are standard for everything back to DVDs. Video with BT.2020 color primaries is usually HDR, but not always. 4 being non-constant and the presence of 5 - 7 all indicate it is encoded as HDR video. 5 - 7 is the "HDR metadata" you may have seen discussed. Edit: I got confused on this point again. BT.2020 non-constant would also be used for SDR BT.2020, it is BT.2020 constant that would most likely be HDR. I believe most HDR material out today is BT.2020 non-constant anyway. The constant or non-constant refers to linear or gamma like transfer functions, constant is linear. __________________ madVR options explained Last edited by Asmodian; 8th December 2017 at 09:56.