On Thu, Aug 10, 2006 at 08:09:38PM +1000, Vaughan Famularo wrote: > Thanks again for all the help! You guys are great for your assistance. > Firstly, Nicholas, > Your idea of making a script file was fantastic I thought, BUT it > refused to work. So I checked and rechecked everything and found the > answer layed with the "tmpgenc" command within that file! > I don't seem to have tmpgenc installed anywhere, so that confused me > very much. Can someone explain what I am missing here please? > > I finally got the program rendering an Mpeg2 file by using the presets > from mpegenc. It does seem slow but I am only comparing it to Windows > programs. > Now, that I have it up and running, can someone point me to a site where > I might improve the quality or speed (or both) by using better or > different commands if that is possible??? > > Thanks again for all your help. I would really be interested in what > Nicholas did by writing files with the presets necessary. Is it > generally accepted that that is a good idea??? > > Thanks again > > Vaughan
Vaughan, Here's what I advised to put in the ~/cine_render.sh : #/bin/bash mpeg2enc -v 0 -K tmpgenc -r 32 -4 1 -2 1 -D 10 -E 10 -g 15 -G 15 -q 6 -b 9400 -f 8 -o $1 tmpgenc is NOT a command. It's a parameter for mpeg2enc. It indicates the tmpgenc matrix should be used to encode the video. It reduces the size of the m2v file without deteriorating the quality. The parameters here are set to get a very good quality. What you can modify : -r 32 : that's a big value for the radius. Reducing it will decrease encoding time, but I keep the 32 value because I really want the best quality -q 6 : that's the quantizer setting. If you reduce it (don't go below 3 or it'll bug), the quality increases. But you want to keep the medium bitrate around 20% lower than the higher bitrate achieved in your m2v file. I have a standalone DVD player which displays the bitrate, I use that information to set the -q setting -b 9400 : you could go up to 9800, that's right. But I use 9400 because some (in fact very few and old) standalone player got some difficulties to play files having a bitrate as high as 9800. Even if the DVD standard says a DVD player MUST be able to play such a file. Nicolas, Paris. _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
