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

Page 38

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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.

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