[vdr] OT: Finnish Yle HD olympics channel..

Pasi Kärkkäinen pasik at iki.fi
Tue Aug 12 15:33:38 CEST 2008


On Tue, Aug 12, 2008 at 04:31:30PM +0300, Pasi Kärkkäinen wrote:
> On Tue, Aug 12, 2008 at 03:07:57PM +0300, Seppo Ingalsuo wrote:
> > Pasi Kärkkäinen wrote:
> > > Maybe try with recent mplayer (from svn).. and give it 
> > > "-demuxer lavf -lavdopts fast:threads=2 -no-correct-pts" or something similar..
> > > you can also try with threads=4 etc.. 
> > >   
> > "mplayer -demuxer lavf -lavdopts fast:threads=4 -nocorrect-pts ..." 
> > gives steady but slow motion (roughly 50% speed) video. It is weird that 
> > the load on CPU1 and CPU2 is less than 40% during playback according to 
> > gnome system monitor. Somehow mplayer is not able to max both CPUs close 
> > to 100%.
> > 
> 
> Just tried a sample of DVB-T YLE HD (720p50) on my computer..
> 
> It seems mplayer is not able to use multiple threads, at least on my
> system.. I just see a single process/thread taking all of the CPU.
> 
> I guess there's still something to fix for a proper multithreading for h.264
> decoding in mplayer/ffmpeg/libavcodec.. 
> 
> I used:
> 
> mplayer -demuxer lavf -lavdopts fast:threads=4
> 

And I used SVN version of mplayer/ffmpeg/libavcodec, checked out today.. 

-- Pasi



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