Grass Valley K2 Edge Extraction Manual v.4.0.2 - Manual (Page 6)

K2 Edge Smart Playout Center Cross Conversion and Service Extraction Manual - document version:
4.0.2 Page 6
5 Service extraction
A number of services embedded in clips and in the VBI-data in SDI-streams are extracted from the
input source and made available in the output, possibly converted to a suitable alternative format.
These extracted services will survive cross conversion, although some of the conversions are lossy.
The following sections describe each of the services recognized by the extraction process, with a list
of the recognized sources.
5.1 AFD
The following input sources are supported for extraction of the Active Format Description (AFD)
service, in given order of priority:
Input source Condition
1 AFD-objects defined on the timeline of a Channel Composer template.
2 AFD ANC packets found in an MXF file, embedded in accordance with the SMPTE
436M-2006 specification, section 6: MXF Ancillary Data Packet wrapping
specifications.
Main Player (*)
3 AFD-objects found embedded in the VBI-section of an SDI-stream of all supported
broadcast formats.
Main Player
(*) Input sources with the main Player condition are only recognized when the associated Channel
Composer Player object was assigned the main player role. At any given time, only one Player can
have this role.
5.2 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