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Additional features
New lossless codec (
AFZ)
The new compression scheme builds on the existing codec and is primarily focused on
improving the performance for “natural” images (i.e. photographs and movies). It works
in concert with the existing codec and is automatically selected whenever there is a
benefit to do so.
The new codec is lossless and is very low latency (a small fraction of a frame delay). It
generally achieves 50% improvement (in compression) over the current scheme for any
areas of the screen that consist of images, gradients, shadows etc., elements commonly
found in modern desktop environments.
To maintain compatibility with non AFZ -enabled transmitters and receivers there is an
automatic switching method which will revert back to RLE when an AdderLink Infinity
receiver is connected to the AdderLink Infinity dual.
magic eye (
anti-dither support added)
This feature is enabled by default.
The
Magic Eye feature increases performance and reduces network traffic when the
AdderLink Infinity dual is used with Apple Macs and other host computers that have
dithered video output. It also improves performance if the video source is noisy (e.g.
from a VGA-to-DVI converter).
Dithering is a technique used by some graphics cards to improve perceived image quality
by continuously varying the color of each pixel slightly. This gives the illusion of more
shades of color than the display can really reproduce, and smooths the appearance of
gradually shaded areas in images. Unfortunately dithering is an issue for KVM extenders
such as AdderLink Infinity dual because it makes the image appear to be changing all the
time even when it is static, thus creating much more network data than can be carried by
a Gigabit Ethernet. The result is a reduction in video frame rate, which the user sees as
slow mouse response.
Magic Eye works by ignoring small variations in the video from frame to frame. It is
enabled by default as it is not obvious to the user that his poor mouse behaviour is
caused by dithering. In most cases Magic Eye is invisible, but it can produce slight color
inaccuracies on the monitor. For full color accuracy, Magic Eye can be disabled for video
sources which are not dithered or noisy.