Grass Valley K2 System Guide v.9.0 - Manual (Page 235)

Supported conversions from HD to SD using AFD
Converted image Converted AFD
and aspect ratio Conversion performed Source image Source AFD and aspect
ratio
AFD = 1010
AR = 4:3
5
Scale down
letterbox
AFD = 1000 or 1010
AR = 16:9
AFD = 1001
AR = 4:3
Scale down
crop horizontal
AFD = 1001
AR = 16:9
AFD = 1010
AR = 16:9
6
Scale down AFD = 1010
AR = 16:9
AFD = 1011
AR = 4:3
Scale down
Crop horizontal
letterbox
AFD = 1011
AR = 16:9
AFD = 1001
AR = 4:3
Scale down
crop horizontal
AFD = 1111
AR = 16:9
VBI/Ancillary/data track specifications
This section contains topics about data carried in the media file.
VBI/Ancillary/data track definitions
Terms in this section are defined as follows:
Ancillary data (ANC data) as specified in this section is primarily
a means by which timecode, Closed Captioning, and Teletext
information is embedded within the serial digital interface. Other
Type 2 ancillary data packets are stored and played back without
modification. Ancillary data is standardized by SMPTE 291M. Ancillary data
Line 21 NTSC Closed Captioning as defined in EIA-608 and
used as a subset of EIA-708. EIA-708 has been updated and
renamed to CEA-708. Includes other Line 21 services such as
V-Chip. Closed Captioning (CC)
Teletext System B subtitles as defined ETSI EN 300 706 and
other documents. The Australian standard for digital TV is Free
TV Operational Practice OP-47. It has been ratified as SMPTE
RDD 8. Teletext (TT)
Denotes both NTSC Closed Captioning and Teletext subtitling. Captioning
5
When play channel video settings Aspect Ratio is set to "Standard (4:3)"
6
When play channel video settings Aspect Ratio is set to "Widescreen (16:9)"
06 November 2012 K2 System Guide 235
Specifications