On Fri, 08 Nov 2002 15:13:23 +0000 Dominik Szczerba <domi@vision.ee.ethz.ch> wrote:
- you see no visual difference between them (for humans) - quant 1 frames are much bigger than quant 2 frames
-> if you use quant 1, you lose quality
but how, if your bitrate is specified? you mean it takes bytes off other frames that may better use it, right? yes.
e.g. 3 frames with a specified bitrate with vqmin=1 you get following quants for the 3 frames: 1 4 4 with vqmin=2 you get : 2 3 3 If you compare the two movies, the second looks better, because: 1. frame -> quant 1 vs. quant 2 -> equal quality 2./3. frame -> quant 3 vs. quant 4 -> there is a visual diffrence, q3 looks better than q4 any questions?
and please comment on vqmax as well... use the default (15)
Bye, Markus -- Secret hacker rule #11: hackers read manuals.