KONA IP Transport, Capture, Display v16.0r1 44 www.aja.com
Settings in the DS Keyer Screen provide control over how the keyer operates and
whether it’s turned on or off. Controls and their meanings in the screen are as
follows:
Downstream Keyer Mode
Downstream Keyer Off
When this pulldown menu item is selected the downstream keyer will be turned
off.
Frame Buffer over Matte
Places the keyed video with alpha channel currently in the Frame Buffer over a
fixed color matte determined by the “Matte Color” setting set separately.
Frame Buffer over Video In
Places the keyed video currently in the Frame Buffer over the video input for
playout or print-to-tape.
Graphic over Matte
Places a graphics file having an alpha channel (chosen in “Graphic File” pulldown)
over a fixed color matte determined by the “Matte Color” setting set separately.
Graphic over Video In
Places a graphics file having an alpha channel (chosen in “Graphic File” pulldown)
over the video input for playout or print-to-tape.
Graphic over Frame Buffer
Places a graphics file having an alpha channel (chosen in “Graphic File” pulldown)
over the current contents of the KONA IP’s Frame Buffer (which might be from
storage, video In, KONA TV, etc.).
Matte Color
Only available when the pulldown “Frame Buffer over Matte” or “Graphic over
Matte” are selected-pressing this button brings up a color selection dialog. The
dialog provides a variety of ways to select a matte color including a color wheel,
color picker (choose from a location anywhere on the computer screen), numeric
sliders, swatches, “crayons”, and spectrums. The matte chosen will be used as a
video background under the keyed video.
Foreground pre-multiplied (checkbox)
Use to avoid “matte lines” and improve the appearance of the foreground (key)
being composited over the background.
Audio Out
Frame Buffer
Select audio out to be routed from the contents of the Frame Buffer.
