Sierra Video UPC-166 - Manual (Page 59)

Operating Instructions Ancillary Data Line Number Locations and Ranges
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.
Table 3-1 Typical Ancillary Data Line Number Locations/Ranges
Because line number allocation is not standardized for all ancillary items,
consideration should be given to all items when performing set-ups. Figure
3-8 shows an example of improper and corrected VANC allocation within an
SDI stream.
Conflict between ATC_VITC = 9/8 attempted using
on VANC line 9
(default) CC = 10 CC = 10
VANC line 18 ATC_VITC on line 9/8 and Dolby Metadata = 13 CC = 10
resolved
Figure 3-8 Example VANC Line Number Allocation Example
3-15 UPC-166-OM
(V4.0)
AFD Insertion
ATC_VITC = 9/8 VANC line 9 AFD = 9
ATC_VITC and AFD both
Dolby Metadata = 13
Dolby Metadata = 13
AFD Insertion ATC_VITC = 9/8
ATC_VITC = 9/8
corrected to use
CC = 10 Conflict between
Dolby Metadata = 13 AFD = 18
AFD (now on line 18)
Card n Card 1
Card n Card 1
Item
Default Line No. / Range
SD HD
AFD 12 (Note 2) 9 (Note 2)
ATC_VITC 12 (locked) 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