Cobalt Digital COMPASS 9066 Upconverter - Manual (Page 50)

3
Ancillary Data Line Number Locations and Ranges
3-8 9066 PRODUCT MANUAL 9066-OM (V4.5)
Ancillary Data Line Number Locations and Ranges
Table 3-1 lists typical default output video VANC line number locations for
various ancillary data items that may be passed or handled by the card.
Because line number allocation is not standardized for all ancillary items,
consideration should be given to all items when performing set-ups. Figure
3-5 shows an example of improper and corrected VANC allocation within an
SDI stream.
Figure 3-5 Example VANC Line Number Allocation Example
Table 3-1 Typical Ancillary Data Line Number Locations/Ranges
Item
Default Line No. / Range
SD HD
AFD 12 (Note 2) 9 (Note 2)
ATC_VITC 13 (Note 2) 9/8 (Note 2)
ATC_LTC — 10 (Note 2)
Dolby
®
Metadata 13 (Note 2) 13 (Note 2)
SDI VITC Waveform 14/16 (Note 2) —
Closed Captioning 21 (locked) 10 (Note 2)
Notes:
1. The card does not check for conflicts on a given line number. Make certain the selected line is available
and carrying no other data.
2. While range indicated by drop-down list on GUI may allow a particular range of choices, the actual range
is automatically clamped (limited) to certain ranges to prevent inadvertent conflict with active picture area
depending on video format. Limiting ranges for various output formats are as follows:
Format Line No. Limiting Format Line No. Limiting Format Line No. Limiting
525i 12-19 720p 9-25 1080p 9-41
625i 9-22 1080i 9-20
Card 1
Card n
ATC_VITC = 9/8
CC = 10
Dolby Metadata = 13
Conflict between
ATC_VITC and AFD both
on VANC line 9
Card 1 Card n
ATC_VITC = 9/8
CC = 10
Dolby Metadata = 13
AFD = 18
AFD Insertion
corrected to use
VANC line 18
Conflict between
ATC_VITC on line 9/8 and
AFD (now on line 18)
resolved
ATC_VITC = 9/8
CC = 10
Dolby Metadata = 13
ATC_VITC = 9/8
AFD = 9
CC = 10
Dolby Metadata = 13
AFD Insertion
attempted using
VANC line 9
(default)