SMPTE ST 2086

SMPTE = The Society of Motion Picture Television Engineers

ST = Standard?

2086 = HDR static metada

"Mastering Display Color Volume Metadata Supporting High Luminance and Wide Color Gamut Images" describes static data such as MaxFALL (Maximum Frame Average Light Level) and MaxCLL (Maximum Content Light Level). 

MaxCLL = Maximum Content Light Level - the value in nits of the brightest pixel in the entire clip.

MaxFALLMaximum Frame Average Luminance Level - value in nits of any single frame. MaxFALL is generally smaller than MaxCLL, and is a parameter used by the display to prevent damage if a frame exceeds its safe handling capability — OLED pixels, for example, can burn out if run at maximum intensity for a long period of time.

example file: The Grand Tour - Seamen

Color range: Limited

Color primaries: BT. 2020

Transfer characteristics: PQ

Matrix coefficients: BT. 2020 non-constant

Mastering display color primaries: Display P3

Mastering display luminance - min: 0.0001 cd/m2, max: 1000 cd/m2

Maximum Content Light Level: 999 cd/m2

Maximum Frame-Average Light Level: 215 cd/m2

Codec configuration box: hvcC

HDR Format: SMPTE ST 2094 App 4, Version 0 (HDR10+)