Hej Fenris
Ifølge ATI's hjemmeside så bstår Vivi af følgende elementer (formuleringerne er selvfølgelig salgsgejl):
Avivo redefines the ultimate visual experience for today’s PCs, and sets the stage for tomorrow’s exciting possibilities. Check your board for specific support of Avivo features.
- Sharp video and photos
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Avivo enhances your digital video and photos, creating sharp images, crisp text, and vivid color. Boost the video quality captured by your Media PC and Personal Video Recorder with advanced 3D comb filtering and automatic gain control. Improve analog video signal quality and reduce annoying artifacts. Maintain clean images even at high display resolutions with Avivo’s video scaling technology. |
True-to-Life Image Reproduction
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Get high image fidelity with CRT and LCD displays, TVs, rear projection and plasma TVs, as well as projectors. Avivo introduces new life to colors across the entire spectrum with an advanced 10-bit-per-color display engine. Gain better digital signal reception, and maintain cleaner video with hardware noise reduction. Enjoy high-quality analog video capture enabled by robust 12-bit analog-to-digital converters. |
Smooth Video Playback
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Free your CPU to devote more processing power to other applications with Avivo’s hardware accelerated processing of new HD video formats, including H.264. Transform your movies and improve every image sent to your display with hardware post processing for superb stutter-free viewing. Avivo gives your video playback the smooth, fluid motion you want from your HD content. |
Universal Display Connectivity
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Certain ATI graphics cards with Avivo technology can dissolve connectivity barriers between PCs and consumer electronic devices. Outputs for virtually any TV via analog or digital interface, such as s-video, and DVI , are complemented by inputs for cable, broadcast TV and other video sources. And advanced dual-link DVI interfaces support the largest high-resolution LCD displays. |
Pendanten er Nvidias Purevideo. Så vidt jeg kan se er forskellen at Radeon's Vivo er hardware baseret hvorimod Nvidias er software baseret... Hardware baseret må vel være at foretrække. Det ser imidlertid ud til, at Nvidia's nye store grafikkort nu også indeholder Vivo.
Det næste her er taget fra Tom's Hardware ( http://www.tomshardware.com/2005/10/06/ati_enters_the_x1000_ promised_land/page12.html)
Here is a diagram from ATI that describes all of the processes in the AVIVO pipeline.
http://images.tomshardware.com/2005/10/06/ati_enters_the_x10 00_promised_land/avivocomponents.jpg
In the first part, video capture, ATI includes steps like Automatic gain control, 3D comb filtering, 12-bit analog-to-digital conversion, hardware de-noising and digital demodulation. These adjustments are designed to improve the quality of incoming video.
If the signal is digital, it passes it directly to the decode segment. However, if the signal in is from an analog source it must first pass through the encode unit to get it into a digital format the GPU can use. AVIVO supports H.264, VC-1, WMV9, WMV9 PMC, MPEG-2, MPEG-4 and DivX formats. H.264 is video compression standard for both the Blu-Ray and HD-DVD formats.
The decode portion converts the data into either H.264, MPEG-2, MPEG-4, VC-1 or WMV9 formats. From here, the data enters the post-processing portion and finally to the display engine. The display engine uses gamma and color correction, compression, and depending on the output, dithering to make the image look sharp in the selected output display.
ATI states that AVIVO is compatible with the latest LCD display technologies. It features higher resolutions, new aspect ratios, faster response times and higher color fidelity. During our time at the ATI tech day for the X1000 briefings, we were able to see 16-bit color capability and HDR on the Brightside 37" LCD monitor driven by ATI hardware.
http://images.tomshardware.com/2005/10/06/ati_enters_the_x10 00_promised_land/avivo-displayengine.jpg
ATI states that AVIVO is compatible with the latest LCD display technologies. It features higher resolutions, new aspect ratios, faster response times and higher color fidelity. During our time at the ATI tech day for the X1000 briefings, we were able to see 16-bit color capability and HDR on the Brightside 37" LCD monitor driven by ATI hardware.
http://images.tomshardware.com/2005/10/06/ati_enters_the_x10 00_promised_land/20050923-brightside2.jpg
http://images.tomshardware.com/2005/10/06/ati_enters_the_x10 00_promised_land/ccc-avivo-settings.jpg
Vedrørende dit spørgsmål om tunere, så ved jeg faktisk ikke om man kan nøjes med tunerne i Radeon kortet, herunder om dette understøttes af Windows MCE...
Venlig hilsen
Rasmus