Vbi/ancillary data specifications – Grass Valley K2 Media Client System Guide Oct.10 2006 User Manual
Page 131

September 7, 2006
K2 Media Client System Guide
131
VBI/Ancillary data specifications
VBI/Ancillary data specifications
The K2 Media Client supports SD Vertical Blanking Interval (VBI) data and HD
Ancillary (Anc) data as specified in the following sections:
16:9
Bar
The 16:9 aspect ratio is maintained,
centered on the screen, with black
bars filling the top and bottom
portions of the 4:3 display.
4:3
Half Bar
The picture aspect ratio is
maintained, but the image is
slightly enlarged. The left and right
sides the image are slightly
cropped, and thin black bars fill the
top and bottom portions of the 4:3
display.
4:3
Crop
The picture aspect ratio is
maintained, but the image is
enlarged so that it vertically fills the
SD display. The left and right sides
of the 16:9 HD image are cropped
to fit in the 4:3 SD display
4:3
Stretch
The picture aspect ratio is distorted.
The image fills the screen
horizontally without cropping, and
is stretched vertically to fill the 4:3
display. This conversion generates
Full Height Anamorphic (FHA)
16:9 SD material.
4:3
Source
aspect ratio
Source
image
Conversion
option
Conversion description
Converted
aspect ratio
Converted
image