Ross OpenGear HDC-8223A, Руководство пользователя

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4–4 • Operation HDC-8223A(-S) User Manual (Iss. 03)
Ancillary Data Line Number Locations and Ranges
Table 4.1 lists typical default output video VANC line number locations for various ancillary data
items that may be passed or handled by the HDC-8223A(-S).
Because line number allocation is not standardized for all ancillary items, consideration should be
given to all items when performing set-ups.
Figure 4.2 shows an example of improper VANC
allocation within an HD-SDI stream.
Figure 4.2 Example VANC Line Number Allocation — Improper
Table 4.1 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
AFD = 9
ATC_VITC = 9/8
CC = 10
Dolby® Metadata = 13
Conflict between
ATC_VITC and AFD
both on VANC line 9
AFD Insertion attempted
using VANC line 9 (default)