Cobalt Digital COMPASS 9071 HD_SD-SDI AFD Code Inserter - Manual (Page 10)

1
9071 Functional Description
1-6 9071 PRODUCT MANUAL 9071-OM (V4.0)
AFD Inserter
This function provides for assignment and insertion of AFD codes into the
SDI output video. Using this function, AFD codes in accordance with the
standard 4-bit AFD code designations can be applied to the output video.
This function checks for any existing AFD code within the received video
input. If a code is present, the code is displayed. When used in conjunction
with a separate downstream card capable of providing AFD-directed scaling,
the image can in turn be scaled in accordance with the AFD coding embedded
by this card.
The function also allows the selection/changing of the AFD code and
ancillary data line number for the outputted AFD code.
Timecode Processor
(See Figure 1-2.) This function provides for extraction of timecode data from
the input video, and in turn re-insertion of timecode data into the output SDI.
The function can monitor the SDI video input of the card for supported
timecode formats, and then select and prioritize among SDI VITC,
SDI ATC VITC, and SDI ATC LTC timecode sources. If the preferred format
is detected, the preferred format is used by the card; if the preferred format is
not detected, the card uses other formats (where available) as desired.
The function provides conversion between various timecode formats and
provides independent insertion and line number controls for each SDI
timecode output format.
Figure 1-2 Timecode Processor
SDI VITC
Detect/Extract
SDI ATC_LTC
Detect/Extract
SDI ATC_VITC
Detect/Extract
Priority/
Select
SDI
Video
Input
SDI VITC
Timecode
Proc/Embed
ATC_VITC
Timecode
Proc/Embed
ATC_LTC
Timecode
Proc/Embed
HD/SD–SDI
Video Output
Insert
Control
Line
Number
Control
Buffer/
Format
HD/SD–SDI
(From Video Proc)