On Tue, Feb 10, 2004 at 08:03:23AM +0100, Thomas B?rkel wrote: > HI! > > Steven M. Schultz wrote: > > > What type of system (cpu) is being used? SSE, MMX, > > MMX-Extended, ??? > > P3-866. Don't know exactly, what type of extra instructions this > one has.
P3 class has MMX, maybe MMX-extended, and the initial implementation of SSE. If you watch the mpeg2enc startup messages, it should tell you what accelerations it's picking to use (of those that were compiled into it) > This is what I see: At -q 4, everything is OK. With -q 3 or better, > I get pulsating (every second or so) blocking (very small blocks, > mosaic-like effect) in the background. If I don't use -R 2, some of > those small blocks get really big and hatched, like it can be seen > in the q3 example. Those examples were made without -R 2. That sounds very much like the integer roundoff problem that I saw on one encode a little while back that was an interaction between -R0 and -G54. You can look back in the archives for the messages. It was sometime around the Nov/Dec 2003 timeframe. The patches/splotches were hatched in my situation as well. Andrew indicated that it was accumulating integer roundoff errors from all P frames and a very long GOP size. It sounds like it's possible to push the encoder into the same roundoff problems with too high of a -q value as well. ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
