Controlling Application - Avid Technology Artist DNxIV Installation And Operation Manual

Color Meanings
All items in the AJA Control Panel block diagram are color-coded to show what is happening in real
time. This applies to both icons and text. These colors indicate:
• Blue - Video is same format as the Device Format (framebuffer)
• 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.
Frame Buffer
The framebuffer is the "engine" where your third-party applications interface with the AJA device.
The framebuffer has a format (called the "Device Format") and color space that it follows, as defined
in the linked menu screens or via external application software.
Device Format
The Device 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 Device Format used by the framebuffer. Also any
text descriptions in the block diagram that appear in blue indicate that something is in the Device
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 differ (blue input and green output icons for example), you
know that a format conversion is being performed.

Controlling Application

It is important to understand that the computer can contain many applications that can use the AJA
device (as you switch from window to window) and it may not always be obvious which currently
controls it.
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AJA Control Panel Overview