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

Pasi Kärkkäinen pasik at iki.fi
Tue Aug 12 15:03:38 CEST 2008


On Tue, Aug 12, 2008 at 03:59:19PM +0300, Lauri Tischler wrote:
> 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%.
> > 
> > With mplayer I noticed that the video is 1080i -- it is silly to 
> > broadcast interlaced crap. That probably explains why vdr xinelibout 
> > choked due to greedy de-interlacer that is pretty power consuming for 
> > 1080i. Other channels such as Arte HD (arte 
> > HD;ZDFvision:11362:hC23M5O0S1:S19.2E:22000:6210:6221=deu,6222=fra:6230:0:11120:1:1011:0) 
> > work OK.
> 
> Hi. What card are you using to get DVB-S2 ?
> CPU power ? Dual-core ? GHz ?
> 
> I have now AMD X2 4600 and DVB-T YLE HD is a bit jerky, sometimes,
> playing recordings from YLE HD is totally jerky.
> Wondering if getting quad-core 2.6GHz would help any.
> 

A friend of mine was able to view DVB-T YLE HD on dual-core Intel core2 3 GHz
CPU.. I think it didn't work very well on 2,66 GHz dual-core one. 

Notice that there was been some optimizations and fixes lately to
mplayer/ffmpeg/libavcodec so you should be running latest SVN version.. 

Or then you could try with CoreAVC H.264 codec.. 

-- Pasi



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