Service extraction, 3 service extraction – Grass Valley K2 Edge User Manual v.4.1 User Manual
Page 38

K2 Edge User Manual - document version: 4.1
– Page 38
1080@5994
i
HD, 1920x1080, interlaced, 29.97 frames/sec, AR 16:9
Accepted input
media formats
Fram
e rate
Conversions
Comments
NTSC
29.97
AR, Up
Close to native format in terms of video and audio, but
less pixels. Video is scaled up via a Channel Composer
template.
720@5994p
59.94
Cross, Up
Different (but related) frame rate, automatically cross
converted from progressive to interlaced format. This
includes conversion of a selected set of services. Video is
scaled up via a Channel Composer template.
1080@5994i
29.97
None
Native format.
15.3 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.
15.3.1 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.