Grass Valley K2 System Guide v.7.2 - Manual (Page 212)

212 K2 System Guide 07 April 2010
Appendix B Specifications
Data track support on K2 Summit/Solo SD channels
The following table applies to SD channels when in Configuration Manager the Data
Track settings are configured as follows:
• Record ancillary data: Yes
• Record Uncompressed VBI and captioning data to track: Yes
Data track support on K2 Summit/Solo HD channels
On channels with the XDP (HD) license, the data track can contain ancillary data and
other types of data. Luma ancillary data packets are stored. Chroma ancillary data
packets are not supported.
Captioning system support
An API is provided for access to captioning data, allowing Closed Captioning and
Teletext systems to produce timecode correlated captions for an existing K2 clip.
Video format Data Supported as follows:
525 line (NTSC) Closed Captioning Stored in EIA-708 packets. On playback, modulate to VBI line 21.
625 line (PAL) Teletext Stored in OP-47 packets. On playback, modulate to VBI line specified in
OP-47 packet.
All supported SD
formats Uncompressed VBI Selectable per line. Limited to 5 lines. The 5 line limit does not include any
lines used for CC or TT. Can select either Luma or Chroma for each line, but
not both.
Ancillary timecode Ancillary timecode is preserved only. No timecode track is constructed from
ancillary timecode data. The timecode track is not inserted as ancillary
timecode on playout.
Data Supported as follows:
Ancillary timecode For record, selectable to use VITC or LTC ancillary timecode as timecode source.
For playout, selectable to insert recorded timecode track as ancillary data VITC or LTC timecode
packets.
If the recorded timecode track is inserted as VITC ancillary timecode and VITC ancillary timecode
packets are already stored on the data track, then the recorded timecode track overrides the stored
VITC ancillary timecode packets.
If the recorded timecode track is inserted as LTC ancillary timecode and LTC ancillary timecode
packets are already stored on the data track, then the recorded timecode track overrides the stored
LTC ancillary timecode packets.
Vertical interval
ancillary data packets Extracted at input and stored on an ancillary data track. Upon playout, the data packets are inserted
into the video stream on specified lines. Maximum 8 packets per field. CC and TT suppported as
native to format.