Grass Valley K2 Edge User Manual v.4.1 - Manual (Page 39)

K2 Edge User Manual - document version: 4.1 – Page 39
15.3.2 CDP
The following input sources are supported for extraction of the Caption Distribution Packet
(CDP) service, in given order of priority:
Input source Condition
1 A STL subtitle rendered in CEA-608 format. The 608 subtitle data will end up in the
CDP’s embedded 608 section.
This input source can co-exist with the next #2 source.
This input can also co-exist with #3 and #5. If present, 608 subtitle data from #3
and #5 will be overwritten.
2 CEA-608 XDS commands placed on the timeline of a Channel Composer template.
The XDS data will end up in the CDP’s embedded 608 section.
This input source can co-exist with the previous #1 source.
This input can also co-exist with #3 and #5. If present, 608 XDS data from #3 and
#5 will be overwritten.
3 CDP objects found embedded in VBI section of an incoming SDI stream. Main Player
4 CDP objects created from CEA-608 metadata as a result of cross conversion from
SD to HD format. See the CEA-608 section below on how the 608 metadata came
into existence in the first place.
Main Player
5 CDP ANC packets found in an MXF file, embedded conform the SMPTE 436M-
2006 specification, section 6: MXF Ancillary Data Packet wrapping specifications.
Main Player
15.3.3 ATC / VITC
The following input sources are supported for extraction of the Ancillary Time Code (ATC) and
Vertical Interval Time Code (VITC) services, in given order of priority:
Input source Condition
1 Any clip. The time code represents clip time. Main Player
2 ATC objects found embedded in VBI section of HD SDI stream. Main Player
That is, the ATC/VITC output reflects the time code of either the currently playing clip (if
playing with main player role) or the currently playing SDI stream (again, only if playing as
main player).
The extracted time code is emitted as VITC for SD-channels and ATC for HD channels.