Kvalita obrazu (video) nvidia vs ati vs xgi

[THX]

Na firingsquade vyslo celkom pekne porovnanie:
http://www.firingsquad.com/hardware/...ty_comparison/

Porovnava sa kvalita antialiasingu, ale predovsetkym videa. Myslim ze celkom zaujimave citanie.

[Caleb]

Zajimave, ale ne moc prekvapive
Musim se priznat, ze v tom mam celkem bordel, nevim jak PureVideo aktivovat pro vsechny prehravane videa (zatim se mi to podarilo pouze pro MPEG2 tim jejich placenym DVD dekoderem).
A co je to WMR (windows media renderer?) v nvtray ?
Ze mi to nekdo osvetli? :P

[Caleb]

Tak sem trosku zagooglil a neco sem vygooglil
Zde http://www.anandtech.com/video/showdoc.aspx?i=2305 sem se dozvedel, ze purevideo umi toto

1) Hardware acceleration of Windows Media Video 9 and MPEG-2 decode 

2) Spatial-Temporal Adaptive Per Pixel De-Interlacing (with 3-2 and 2-2 detection) 

3) Everything previous NVIDIA GPUs have been able to do

dale se pise

There are two parts to the software side of PureVideo - the GPU driver and the PureVideo DVD decoder. The driver is simply a version of the ForceWare 67.01 driver, the PureVideo DVD decoder is the latest update to NVIDIA's NVDVD decoder - version 1.00.65. The GPU driver is obviously available free to the public, while the PureVideo DVD decoder sells for $19.99 due to associated royalties. The PureVideo DVD decoder is available as a 30-day free trial from NVIDIA's website.

Coz je opravdu uzasne, sem zvedavej kdy budou zpoplatneny samotne ovladace

Takze mi z toho vychazi, ze pure-video je hlavne o HW podpore dekodovani VMW9 a MPEG2 a o kvalitnim deinterlacing u techto 2 typu videa. Jenze na wiki se pise

In particular, PureVideo can perform subtantially most of the work in MPEG-2 rendering, and a substantial amount of work in WMV9 rendering. PureVideo can also perform adaptive video de-interlacing, on any video stream source.

Coz by znamenalo, ze mohu pouzit PureVideo k deinterlacingu libovolneho zdroje? Napr. TV-karty? Jenze jak? A k cemu sou filtry nvauddec.ax a nvviddec.ax? A co na to Jan Tleskac .. Spousta otazek jeste zustava nezodpovezena.

[no-X]

Placený PureVideo dekodér můžeš použít i k jiným grafickým kartám, ale nebude používat ten deinterlacing, který nabízí v kombinaci s GF6/7, takže tomu bude kvalita obrazu odpovídat.