AJA io 4k - Page 20

Io XT/4K Capture, Display, Convert v14.0 20 www.aja.com
Color Meanings
All items in the AJA Control Panel block diagram are color-coded to show what is
happening in realtime. This applies to both icons and text. These colors indicate:
Blue - Video is same format as the Primary Format (framebuffer)
Green - Indicates that Io XT/4K is performing an active change to the video
making it different from the Primary Format (e.g., down-conversion).
Yellow - Reference video (black burst or other reference source)
Red - The selected operation cannot be performed
Input/Output Icons
The input and output icons are triangles that together with their color show all
the input and outputs and their status (selected, not selected, input present or
not, format, etc.). A complete video path is shown when inputs and outputs are
connected with lines going to/from the framebuffer.
Figure 8. Input/Output Icons
Framebuffer
The framebuffer is the “engine” where your third-party applications interface
with the AJA device. The framebuffer has a format (called the “Primary Format”)
and color space that it follows, as defined in the linked menu screens or via
external application software. The “Secondary Format” is a selection for format
conversion.
Primary Format
The Primary Format is the media format written to disk and used in your project.
This is the format that the framebuffer will use and is shown in the Control Panel
using the color blue. It is the format that the third-party application software will
either receive from the AJA hardware, or is sending to the hardware. All icons in
blue are the same as the Primary Format used by the framebuffer. Also any text
descriptions in the block diagram that appear in blue indicate that something is
in the primary format. For example:
• If the input and output icons are blue, you know that the same format is used
throughout the video path. No format conversion is being performed.
• If the input or output icon colors dier (blue input and green output icons for
example), you know that a format conversion is being performed.
Secondary Format
NOTE: Secondary Format controls are only available on Io XT and Io 4K in UFC mode.
Any format other than the currently selected Primary Format, is a secondary
format. As described previously, this means that either the Inputs or Outputs are
somehow different from the framebuffer’s assigned format—the Primary Format.
A conversion is readily apparent because of the color change from blue.
NOTE: In some cases the application you use with the Io XT/4K will automatically set the
Primary Format, overriding the user’s selected primary format in the AJA Control
Panel.