[mythtvnz] High CPU usage decoding 720p

[Kenneth Dixon]

Thanks Steve, I gave it a go with promising results, the CPU
peeked out at 83% playing recorded video under Mplayer svn.
I know Mythtv 21.0 is due for release shortly, are these
fixes likely to be implemented in this release?


Ken


----- Original Message Follows -----
> 
> On Fri, February 29, 2008 1:00 pm, Kenneth Dixon wrote:
> > Ah, it's not a big deal for me if its a matter of
> > waiting for software to catch up. I am hoping every
> > thing is usable by the time Mythbuntu 8.04 is released
> > though, so I can retire Myth-Box Mk2 (though it as
> > served me well). As long as Mk3's hardware is up to it.
> > Thanks, for the input.
> >
> > Ken
> 
> Ken - Have a try with a stand alone build of mplayer of
> SVN on the same hardware and see how you get on for
> performance.
> 
> Steve
> 
> >
> > ----- Original Message Follows -----
> >> >
> >> > ----- Original Message Follows -----
> >> >> You could try building ffmpeg with the cabac patch
> >> which >> allows threading of this portion of the
> decoding >> process. >> It's not yet in ffmpeg mainline,
> as there are >> possible >> issues with some types of
> options (MBAFF I >> think - not >> sure if this will
> affect NZ freeview >> transmissions)
> >>
> >> mythtv (even fixes-0.21) has problems with NZ's DVB-T
> as >> you get lots of:
> >>
> >> h264 @ 0x86a46b0]Interlaced pictures + spatial direct
> mode >> is not  implemented
> >>
> >> error messages becuase of the MBAFF encoded h264. 
> mythtv >> uses its own  internal version of ffmpeg which
> won't get >> updated for a while etc so  I  dunno a way to
> use an >> external version (like mplayer's version etc) I
> have an >> AMD 4800+ and get about the same. I still can't
> get the >> AAC audio  working on TV1, but I'l keeping at
> it when I >> get time.
> >>
> >> Thanks
> >> Craig
> >>
> >>
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> 
> --------------------------------------------
> Steven Ellis - Technical Director
> OpenMedia Limited - The Home of myPVR
> email   - steven at openmedia.co.nz
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