Quantum Data 881 User Manual page 680

EXCX
Class
Description
Command syntax
Appendix A Command Reference
652
Extended-From-Content Aperture Map
Format parameter setting - active video
Maps CXAR-shaped image content into the extended EXAR-shaped aperture.
EXCX code
code
0 to 131071 (in decimal)
The mapping code is made up of three binary field codes as follows:
• Bits 0-2 are the Squeeze/Stretch ("S") field code
• Bits 3-9 are the Letterbox/Pillar ("L") field code
• Bits 10-16 are the Safe Area ("K") field code
To determine the proper mapping code, follow these steps:
1. Using the table below, determine the proper "S" field code for bits 0-2.
Squeeze/Stretch Method
Disabled (scaling is uniform)
Linear Squeeze (anamorphise)
"S" Field Code
Undo Non-Linear Squeeze
Bit 2 Bit 1 Bit 0
0 0 0
0 0 1
Symbol
S