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[vdr] Re: budget dvb + dxr3 -> small drop outs



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Am Monday 16 June 2003 12:48 schrieb Frank Scherthan:
> Stefan Betermieux wrote:
> > Could anyone give an advice how to rise the priority of the stream or how
> > to increase buffers? Can anyone reproduce these effects?
>
> Have you tried to renice the vdr-task? That helps me... (as I do alot of
> other things while watching TV on the same computer, vdr runs on)
>
> (man nice, man top)
>
> Frank

I have already tried to renice the vdr task, but I suspect another task 
(probably kernel) which also runs with highest priority and which can't be 
overruled. The described problem occurs on an otherwise idle machine, with 
all unneeded proccesses deactivated (even syslog to reduce disk activity, and 
yes, DMA is activated ;-) ).
 
I am just thinking about another fact: Shouldn't the dxr3 buffer the MPG 
Stream? If it does, then the system load, which blocks just a small period 
shouldn't be a problem. Also, the fact that the output stream freezes and 
doesn't just decreases in quality indicates the dropping of I-frames. The 
input SS and BER seems to be OK, because the windows software produce a 
freeze free stream with the software decoder.

Could anyone give a hint at locating the parts of the source where I can count 
the I/P/B Frames. Can these values be monitored in vdr, the dxr3 plugin or 
the em8300 driver ?

Stefan
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