Grass Valley K2 System Guide v.7.2 - Manual (Page 213)

07 April 2010 K2 System Guide 213
VBI/Ancillary/data track specifications
Data bridging of VBI information on K2 Summit/Solo HD channels
On channels with the XDP (HD) license, data is bridged as follows:
Source
format Source
data Conversion Converted
format Converted
data
SD
525 line Closed-captioning (CC) on
line 21 (EIA-608) can be
stored as UserData
a
CC
packets or UserData VBI
Line21 (Uncompressed VBI
Line21)
a.
UserData CC packets always on. If CC exists, it is recorded and played back. MPEG UserData can be played out but not
recorded.
Up-convert HD Ancillary Closed Caption EIA-708-B packets
EIA-708 Up-convert HD EIA-708
SD
625 line Teletext (except as below) No up-conversion to HD
5 lines of VBI Teletext in
OP-47 packets Up-convert HD OP-47 ancillary data packet in SD data track
file. SD Teletext is in ancillary data location as
specified in OP-47 packet.
SD
625 line
525 line Ancillary data Up-convert HD Moved to valid lines
HD EIA-708 & 608 Ancillary
data packets Down-convert SD Closed-captioning on line 21 (EIA-608
standard).
HD Teletext as OP-47 packets Down-convert SD Output as VBI waveforms on lines specified in
OP-47 packet.
HD
1080i Ancillary data Cross-convert HD
720p Moved to valid lines.
HD
720p Ancillary data Cross-convert HD
1080i Moved to valid lines. Any data on lines 21-25
is moved to line 20 on 1080i output.