Adtec EN-30 - Page 23

H.264 (MP4): 2 - 30 Mb/s
Aspect Ratio
Aspect Ratio can be set to 16x9 or
4x3 when the input is a SD
resolution
16x9
4x3
*.ECMD# ARA
AFD
Active Format Descriptor is data
that can be sent in a MPEG video
stream that provides information
about the aspect ratio and picture
characteristics within the stream
for cropping/letter boxing by
downstream devices. The
configuration can be set to OFF,
WSS for AFD ‘passthrough’ or
manually set.
OFF
WSS
2 - 11
*.ECMD# AFD
View AFD API
documentation
for further details
of arguments
2-11
GOP Type
GOP Type can be set to open or
closed. An OPEN GOP uses
referenced pictures from the
previous GOP at the current GOP
boundary. A CLOSED GOP starts
with an I Frame and subsequent B
Frames do not rely on I or P
frames from the previous GOP.
OPEN
CLOSED
*.ECMD# GOP
GOP Structure
GOP Structure sets the format
Group-of-Pictures will use; the
order of interframes and the
various types of picture frames
that will be used.
IBBP
IBP
IP
I
*.ECMD# GOP
GOP Size
GOP Size is the distance between
two full image frames (I-Frames)
in a GOP Structure.
1 - 30
*.ECMD# GOP
Fault Mode
The user can select encoder
behavior during video loss. The
encoder can stop encoding, encode
black, or generate a combination of
Black, Bars, Tones and Service ID.
OFF
BARS
BARSTONES
BARSOVERLAY
BARSTONESOVERLAY
*.ECMD# RVD
Fault
Resolution
Allows the operator to select what
resolution to encode at during fault
mode.
480I59.94
576I50
720P59.94
720P50
1080I59.94
1080I50
*.ECMD# RVD