Io IP Transport, Capture, Display v16.2r1 35 www.aja.com
• P3 - P3 colorspace
• 2020 - BT.2020, typically used with HDR
• Custom - Allows custom values for the Digital Primaries.
Transfer
The Electrical Optical Transfer Function metadata bit tells the HDMI display which
EOTF to use.
• Auto - (default)
• SDR - Standard Dynamic Range
• PQ -
• HLG (Hybrid Log Gamma) - No meta-data for Digital Primaries.
Luminance
• Auto - (default)
• YCbCr -
• ICtCp - IPT color space
Digital Primaries
Selecting Custom HDR Mode allows the editing of digital primaries information
that is passed as metadata accompanying the video signal. However, when HLG
selected as the EOTF digital primaries information cannot be edited, because HLG
does not use metadata.
Display Mastering Luminance
Represents the minimum and maximum Display Mastering Luminance.
• Minimum: Defines the floor of the SMPTE ST 2086 color volume (in the case of
HDR) and is determined by the mastering environment.
• Range: 0.0000 cd/m2 to 1.0000 cd/m2.
• Step size: 0.0002 cd/m2.
• Maximum: Defines the ceiling of the SMPTE ST 2086 color volume (in the case
of HDR) and is determined by the mastering environment.
• Range: 1 cd/m2 to 65535 cd/m2.
• Step size: 1 cd/m2.
Maximum Content Light Level (CLL)
Represents the highest-value pixel component in an entire scene. It is
determined by analyzing each frame of video, and can be determined in the post
environment.
• Range: 1 cd/m2 to 65535 cd/m2.
• Step size: 1 cd/m2.
Maximum Frame Average Light Level (FALL)
Represents the maximum of frame-based average light levels taken over an entire
scene, and can be determined in the post environment.
• Range: 1 cd/m2 to 65535 cd/m2.
• Step size: 1 cd/m2.
HDR Playback Settings
The HDR Playback tab settings are identical to the HDR Capture settings, but
affect the Io IP's HDMI and SDI outputs.
