On Mon, Aug 20, 2007 at 08:18:27PM -0400, Douglas A. Tutty wrote: > I did a direct comparision of the nv driver with the debian-packaged > nvidia non-free driver. The difference I noticed was with playing back > a DVD. > > Card: Asus EN7300GT silent (nVidia EN7300GT), 256 MB. > MB/CPU: Asus M2N-SLI Deluxe, Athlon64 3800+, 1x 1GB ram stick. > Display: Intergraph 21" CRT at 1600 x 1200 x 32-bit, 85 Hz. > > Test movie: 40th anniversary edition DVD of __The_Sound_of_Music__. > Ideal test scene, near the beginning where the Nuns are in the chapple, > shot on location, good contrast, facial details, candle flames, etc. > > VLC setup: full-screen (so the picture gets enlarged from the default > DVD), de-interlace blending. > > Nvidia driver: CPU 98% idle, little memory used. > fine detail clear, lines in old nun's face, great dynamic range (subtle > shading light to dark), clear definition around candle flame on dark > background, motion smooth. > > nv driver: CPU 94% idle, little memory used. > blurred fine detail, old nun has a younger (smoother) face, less dynamic > range (some dark details lost), candle flame blurred, motion slightly > rough. > > Another good test scene: Maria in the Mother Superior's office, the > Nvidia driver lets the viewer see the MS's facial expression change as > Maria talks, with the nv driver you miss this subtle facial acting. > > I too was surprised that having the hardware decoding made a qualatative > difference rather than just using more system resources.
Wow, I hadn't expected the Xv extensions to be able to make that kind of difference to the decoded video. Or perhaps there is some serious bug in the open nv driver. -- Len Sorensen -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]