On Wed, 2003-11-26 at 00:15, Steven M. Schultz wrote: > On 25 Nov 2003, Florin Andrei wrote: > > Is it a good choice to use -g 6 -G 18? > > Any possible side-effects of doing that? > > In general, when would you recommend to tweak -g -G? > > High motion videos might benefit from '-g' being decreased - in fact > you could set that to 1 (if you're using the cvs version of mpeg2enc > or at least the current release candidate).
Issues with set-top-boxes in that case? (sorry if asking silly questions) > > What are the default values of -4 and -2? (the equivalent of not using > > them at all) > > I use -4 2 -2 1. Dropping -4 from 2 to 1 increases the encoding > time by a lot (30 - 40%) for a nominal (couple percent at best) > decrease in average bitrate. ...and no visible quality gain, right? > > -E -20 corresponds to what kind of quality? VHS-like? Broadcast-like? > > It's not that simple... But you knew that ;) yes :-( <sigh> I thought i should try anyway. > > What -E value would you recommend to start experimenting with in my > > case? > > -10 is a good non-aggressive/mild setting (i've seen good results > with -5 to -8). What's the default? (the equivalent if i don't use -E at all) > > -b 9800 -E -15 -q 6 -R 0 -s -c -I 1 -g 6 -G 18 -4 2 -2 1 -K tmpgenc -N 1 > > 9800 is too high. Some standalone players can not handle the maximum. > For portability you'll really want to back off to something like 8500. But most of the professional DVDs i've seen are at or around 9800 kb/s -- Florin Andrei http://florin.myip.org/ ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
