I think something is going on with some people's builds that silently prevents libmpeg2 from working.
There are people who post to this mailing list, and the dev list, who specifically claim 1080i with 2100+ and even 1800+, but more than that, I spoke with someone in IRC who turned it on and saw a huge drop in CPU utilization. Then there are people like you, me, and a few other posts I've read, who turn it on, see no difference, and are like "WTF - looks like a NOP to me." Is there anyone (HDTV equipped) who has libmpeg2 working and can share distro/hardware stats/build steps/tweaks/advice? On Sun, 2005-02-20 at 09:46 -0800, Jason Weinstein wrote: > Same problem for me. I've got a P4 2.6 (Northwood) running at 2.8 and > 1080i skips frames every few seconds in MythTV, but plays fine in VLC. > Switching MythTV to libmpeg2 makes a very marginal difference. I'm > hoping the P4 3.06 w/Hyperthreading that I have on order will be able > to add that extra bit of horsepower to play HDTV in Myth. > > Jason > > > On Sun, 20 Feb 2005 09:14:00 -0500, David Wood <[EMAIL PROTECTED]> wrote: > > Is there any way to see in the logs if libmpeg2 is working? > > > > I have an AMD2600+, and a HD3000 card. > > > > xine can play HDTV content (even 1080i) just fine with the "xv" driver, > > so I know in theory the hardware can do it. However, mythtv (0.17) can't > > hack it. It is _close_ - a bit jittery, dropping frames, but almost fast > > enough. > > > > I saw a post on the list from several weeks ago indicating that libmpeg2 > > was good for a major improvement in speed; I see numerous references on > > the mailing lists to doing HDTV decoding with chips even slower than > > mine (2100+, 1800+). > > > > http://www.mail-archive.com/[email protected]/msg02114.html > > > > However, when I switch on libmpeg2 in playback settings I see no > > difference _at all_ in performance. In other words, with libmpeg2 on or > > off I get exactly the same results. > > > > Can people confirm or deny this library is this good? Were there any > > special tricks you needed to do in the build? Any logging I can enable > > to try to get an insight? > > > > Regards, > > David > > > > > > _______________________________________________ > > 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
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