Dolby Vision Gaming \ Borderlands 3 \ 4K DV 2 HDR DVR XSX Showcase
7Dolby Vision is a set of technologies developed by Dolby Laboratories for high dynamic range (HDR) video. It covers content creation, distribution, and playback. Dolby Vision includes dynamic metadata that are used to adjust the brightness, color and sharpness of each frame of the video to match the display color volume (i.e. the maximum and minimum brightness capability and the color gamut). It allows for the creative intents to be preserved on all Dolby Vision compatible displays. It was introduced in 2014, making it the first available HDR format.
Dolby Vision IQ is an update designed to optimize Dolby Vision content according to the ambient light.
Description
Dolby Vision allows for a maximum resolution of 8k, up to 12-bit color depth, maximum peak brightness of 10,000 nits. However, according to the Dolby Vision white paper, as of 2018 professional reference monitors, such as the Dolby Vision HDR reference monitor, are currently limited to 4,000 nits of peak brightness).Dolby Vision includes the PQ transfer function, a wide-gamut color space (ITU-R Rec. BT.2020 in YCBCR or IPTPQc2), up to 8K resolution, and for some profiles up to 12-bit. It can encode mastering display colorimetry information using static metadata (SMPTE ST 2086) and also provide dynamic metadata (SMPTE ST 2094-10, Dolby format) for each scene or frame. This dynamic metadata or Dynamic HDR allows adjusting of brightness and contrast (in reality, the tone curve) on the scene by scene or even frame by frame bases as and when required and adjusts it many times during the video/movie. It is considered to be future-proof.
Technical details
The Dolby Vision format is capable of representing videos with a peak brightness up to 10,000 cd/m2 and a color gamut up to Rec. 2020. Current displays cannot reproduce the full Dolby Vision brightness and gamut capability. There are no brightness and color gamut capability requirements for consumer displays. When the consumer display has lower color volume than the mastering display, the content is adjusted to the consumer display capability based on the dynamic metadata.
Dolby Vision mastering display require:
EOTF: PQ
Peak brightness: at least 1,000 cd/m2
Black level: at most 0.005 cd/m2
Contrast ratio: at least 200,000:1
Color gamut: at least 99% of P3
Metadata
Dolby Vision metadata include:
L0 (static): Mastering and target display characteristics
L1 (dynamic): Automatically generated
L2 trims (dynamic): Manually generated per frame or per scene
L3 trims (dynamic): Manually generated per frame or per scene (since CMv4.0)
L8 trims (dynamic): Manually generated per frame or per scene (since CMv4.0) (equivalent of L2 trims)
L5: Timeline aspect ratio description
L6 (static and optional): MaxCLL and MaxFALL (required for HDR10)
L9 (dynamic): Mastering display color primaries (since CMv4.0)Dolby Vision 4.0 introduces new secondary trims for hue and saturation adjustment.
Profiles
On some Dolby Vision profiles, the base layer and the enhancement layer are combined to produce a 12-bit video signal.
File formats
ISO Base Media File FormatMP4
DECE
Common File Format (CFF)
Protected Interoperable File Format (PIFF)
HTTP Live Streaming
MPEG-2 Transport Stream Format
MPEG-DASH
MKV
License
Dolby Vision is a proprietary solution by Dolby.In 2021, compatible color grading systems can create Dolby Vision automatic metadata with no additional cost for content creators. A $2,500 annual license is required to activate the trims allowing content creators to manually adjust the video. OEM and manufacturer of a grading, mastering, editorial, or other professional application or device need to apply for a license.Dolby SVP of Business Giles Baker has stated that the royalty cost for Dolby Vision is less than $3 per TV.
Adoption
Hardware
TV:LG
Panasonic
Philips
Sony
TCL
Toshiba
Vizio
VUSmartphones:
Display:
LG G6
iPhone 8/8 Plus, X, XS/XS Max, XR, 11, 11 Pro/11 Pro Max, SE (2nd generation), 12/12 mini, and 12 Pro/12 Pro Max.
Xiaomi: Mi 11 Ultra, Mi 11 Pro
Camera:
iPhone 12/12 mini and 12 Pro/12 Pro Max
Content distribution
Ultra HD Blu-ray
Streaming services
Software
Color grading:Autodesk Lustre
Autodesk Flame 2021
Blackmagic Design Davinci Resolve
Digital Vision Nucoda
Filmlight Baselight
Grass Valley RIO
SGO Mistika
Encoder:
x265: Profile 5, profile 8.1 and profile 8.2 (since version 3.
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