On 11/17/05, Robert Tsai <[EMAIL PROTECTED]> wrote: > On Thu, Nov 17, 2005 at 03:43:52PM -0800, Todd Ignasiak wrote: > > I have seen several reports of performance expectations with the > > various MPEG decoders, and what I am seeing is not exactly what > > other people have seen, so I wanted to start a discussion here. > > Also, I thought others might be interested in the performance > > numbers from a typical system (if anyone has performance info from > > other CPUs, or Unichrome XvMC, please post).. > > > > The main unexpected issues I see are: > > - libMPEG2 uses much more CPU than the Standard decoder on my system. > > (libmpeg2:80%, Standard: 50%, XvMC: 28%). The 'help' info in the > > GUI, and several posts here, say that libMPEG2 should be have lower > > CPU requirements. Perhaps this is an x86-64 issue. > > You're confirming what other people have reported on other 64-bit > systems (ffmpeg a.k.a. "standard" is more CPU-efficient): > > http://www.gossamer-threads.com/lists/mythtv/users/127168 > > --Rob
Thanks for the link. I missed that thread in all my searches. There is a lot of good AMD64 info there. I guess ffmpeg is optimized for 64 bit, libmpeg2 is not, so that explains the performance I'm seeing. Now, if I could find a solution for the stuttering related to XvMC + OSD, I would be all set. > > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.1 (GNU/Linux) > > iD8DBQFDfWUc18A6pRrdKfkRAqkIAKDNv5g/PzZgWzhtVT5AvFm+Y4kOTQCgiMxf > IvLftNvwpZ6VlJ1badI5ty4= > =iaQn > -----END PGP SIGNATURE----- > > > _______________________________________________ > mythtv-users mailing list > [email protected] > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
