4.5

84Compressor User Guide
• MaxCLL: Displays the value, in nits, of the brightest pixel in the video file (Maximum
Content Light Level).
• MaxFALL: Displays the value, in nits, of the maximum average light level for any single
frame in the video file (Maximum Frame Average Light Level).
For more information about working in HDR color space, see Change video color space in
Compressor. (HDR transcoding in Compressor requires macOS 10.13 or later.)
360° metadata
The following properties are available in the 360° Metadata area of the Job inspector in
Compressor (if these properties are not visible, move the pointer to the right of the 360°
Metadata heading in the Job inspector, then click Show):
• Include 360° metadata: To include 360° video metadata in your output file, select
this checkbox. (If Compressor detects 360° video metadata in your source file, it
automatically checks this box.)
• Stereoscopic mode: Use this pop-up menu to identify the 360° video file as monoscopic
(2D) or stereoscopic (3D). There are three options:
• Monoscopic: Use this option for standard (2D) video.
• Over/Under: Use this option for stereoscopic (3D) video that displays the left-eye
and right-eye images vertically.
• Side by Side: Use this option for stereoscopic (3D) video that displays the left-eye
and right-eye images horizontally.
• Source software: This field identifies the software tool used to add metadata to the
source file. If the source file has no metadata and you use Compressor to add it, this
field displays “Apple CompressorKit.”
• Orientation: Displays the coordinates—Tilt (X), Pan (Y), and Roll (Z), in degrees—of the
source video’s view origin (the initial angle that viewers will see in a VR headset before
they turn their heads). Enter new coordinates to change the initial orientation.
• Projection mode: Sets the type of spatial mapping used to store the 360° video. There
are two options:
• Equirectangular: The most common form of spatial mapping for 360° video, this
mode squeezes and distorts the spherical data like a flat map of the spherical earth.
• Cubic: A less common form of spatial mapping (used in the Spherical Video V2
metadata standard), this mode represents the spherical data as an unfolded cube
with six faces.
• Pixel bounds: When “Projection mode” is set to Equirectangular, this property becomes
available, allowing you to modify the boundaries of the equirectangular frame. Most
of the time, there’s no need to change these values. However, if you need to alter the
dimensions of 360° video from its 2:1 aspect ratio to a more conventional aspect ratio
(16:9, for example), you can do so using these controls. Enter values in the Left and
Top fields to crop a specific number of pixels from the left edge and top edge of the
image. Enter new values in the Width and Height fields to change the dimensions of the
equirectangular frame.