Radeon Video capabilities:
<b>HDTV</b>
. . Fully supports all aspects of the HDTV video format, accommodates the widest
. . format <b>1920 pixels wide</b>. Competing products are forced to downscale the
. . video image resulting in a loss of quality.
<b>DVD</b>
. . Hardware acceleration of motion compensation, run-level decode, de-zigzag,
. . IDCT and subpicture, as well as scaling, alpha blending and color-space
. . conversion. Significantly improving system performance and image qualtiy.
. . IDCT (only in ATI chips) cuts the cpu usage in half from a purely Motion
. . compensation assist card. For example, software only 65% cpu usage,
. . Motion compensation on hardware 40% cpu usage, Motion compensation
. . and IDCT 20% usage. Doing a virus scan, defragmenting hard drives,
. . downloading while a DVD playing is not a problem with a Radeon equiped system.
. . Quality is compromised when the Motion Compensating chips does the IDCT
. . part by software truncating a 9 bit error term to 8 bits dropping information for
. . color space conversion, scaling or de-interlacing. The Radeon uses all the
. . 9 bit data for error corrections and does the IDCT in hardware.
. . Top quality 4x4-tap filtered vertical and horizontal scaler allowing a 64:1
. . (Not a limited 8:1) upscaling and downscaling. At lower downscaling ratios
. . the Radeo increases to 8-tap horizontal to preserve detail. No undesirable
. . ringing artifacts on a Radeon video image when scaling unlike others.
. . <b>Adaptive <b>Per-Pixel</b> De-Interlacing</b> Frankly an Awesome feature. No one
. . else has this in their video chips except ATI. High quality between still and
. . the motion part of a image where both will be clear vice one being blurred by
. . either bob or weave de-interlacing techniques. If you want jaw dropping
. . DVD playback this is it. This feature is not limited to DVD but is used
. . also in any video signal sent to the Radeon. I gave away my TV set
. . because my Radeon video quality blew it away to be up front.
<b>Video</b>
. . 8-Bit Alpaha Blending of Video and graphics.
. . Adaptive de-interlacing
. . Video out up to 800x600
. . SVHS and composite output
. . Composite/SVHS input on Radeon AIW composite only on Radeon 64 and
. . . other OEM models.
. . Hardware-accelerated control of brightness, contrast, hue and saturation
. . . controls can be adjusted by exploiting fully programmable matrix multiplier
. . . supporting 30 bits per pixel.
. . Genlock ability built in
. . Video Overlay
. . Video capture in Mpeg2, Mpeg and AVI files.
Other features such as built in TV turner on the AIW is also available. Software for all the above capability except for the Genlock ability comes with the Radeons. Drivers now support all features pretty much flawlessly.