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AT-OMNI-121 / AT-OMNI-122
82
Device Operation
Portrait Mode
Images can be rotated 90° or 270° to create portrait-oriented video walls. The steps to configure portrait-oriented
video walls is very similar to creating landscape video walls.
A similar scenario to the landscape video wall challenge will be used to illustrate how to configure a 1 x 4 portrait-
oriented video wall. The details of this diagram are listed below:
• Four decoders are subscribed to a single encoder. Each decoder is connected to a display.
•
The encoder is transmitting a 3840 x 2160 video signal.
•
Display 2 and 3 have been mounted upside-down.
Display Wall
HD
MI
PW
R
LINK
TM
O
MNI
S
TRE
AM
VOLUM
E
DISPLA
Y
INPUT
ID
1
2
1
2
1
2
ID
PW
R
LINK
TM
O
MNI
S
TREAM
1
2
ID
PW
R
LINK
TM
O
MNI
S
TREAM
1
2
ID
PW
R
LINK
TM
O
MNI
S
TREAM
1
2
ID
PW
R
LINK
TM
O
MNI
S
TREAM
LAN
Encoder
Decoder
Decoder
Decoder
Decoder
2
1
3
4
2
1
3
4
As with the landscape video wall, this diagram presents some challenges that need to be met:
a.
Since there are four displays, the image from each decoder will need to be scaled to one-fourth of the total
resolution. The crop-and-scale feature will be used to provide the correct output.
b.
Display 2 and 3 have been mounted upside-down. To meet this challenge, the images must be flipped
horizontally and rotated 90°, which gives a total rotation angle of 270°. Display 1 and 4 only need to be
rotated 90°.
Note that the order in which each image is cropped, scaled, and/or rotated is arbitrary. In this example,
the configuration process will begin with Display 1.
Figure 2.1: Portait-mode video wall requiring adjustment.
IMPORTANT:
Portrait Mode is only supported on single-channel decoders.