Adtec digital EN-20 (version 2.03.06) Manual - Manual (Page 20)

Video Menu
The following diagram illustrates the structure and flow of the Video Menu on the Adtec
EN-20 device:
Control Function Options API Command
Input Video Input designates the type of
video signal being received, either
SDI or Composite. If the input is
SDI, the encoder will automatically
detect the resolution and frame rate
of the incoming video source. SDI
COMPOSITE *.ECMD# INP
SDI Mode This allows automatic or fixed rate
detection of SDI video signal. AUTO
SD
HD1.4G *.ECMD# AMO
SEE AMO in API
documentation
Chroma Chromatype is the color information
signal used to determine
chrominance for the encoded video.
422 is only available in SD
encoding. 420
422 *. ECMD# CHT
Video Rate Elementary stream video rate. In
standard definition encoding mode.
(input is composite video, or SDI
auto-detected at standard
definition)
1000000 - 15000000 bits/sec
In high definition encoding mode.
(SDI input only and auto-detected
as 720p or 1080i)7000000 -
60000000 bits/sec
1 - 60 Mbit/s *.ECMD# VRT
SD Video Mode The SD video mode sets the
encoder for NTSC or PAL mode. NTSC
PAL *.ECMD# VID
Aspect Ratio Aspect Ratio is the ratio of
horizontal lines to vertical lines in
the encoded image.Options are:
- Wide Screen Signaling (WSS)
reads incoming WSS flag and
adjusts aspect ratio accordingly.
- 4 X 3 defaults standard definition
to 4 X 3 display.
- 16 X 9 defaults standard definition
to 16 X 9 display.
Aspect Ratio is related to Active
Format Descriptor (AFD). It is
WSS
4x3
16x9
*.ECMD# ARA