Hallo Florin Andrei wrote: > Bernhard Praschinger wrote: >> I have made the mjpegtools 1.9.0 RC3 and put it online. >> The main fix is that the rate control is not broken any more. > > I am getting insane average and peak bitrates with RC3 when transcoding > DV material to DVD-compatible MPEG2. I set the peak with -b 8000, yet in > reality it overshoots 20% or more, while the average as reported by > mplex is very high, close to the peak. > > mpeg2enc -v 0 -I 1 -f 8 -b 8000 -F 4 -n n -a 3 -o file.m2v -c -q 5 -4 1 > -2 1 -s -D 10 -K kvcd -R 2 -M 2 > > RC2 gives me much better results - the peak bitrate doesn't overshoot, > and the average is fairly low, perhaps half the peak, depending on the file. > > I will try again with a higher -q, but RC3 seems to behave very > different from older versions, while RC2 is more similar to the old > behavior. In the RC2 there was at high chosen quality factors (-q 1-4) a problem that the quality fell, to a -q factor down to at 10-15. That does not happen in the RC3. The Quality factor is lowered, but in a way that makes sense. Dropps from -q 3 to 3.4 - 5.6.
auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
