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

[Kai Moeller <moeller.ki@gmx.de>]

On Monday 16 June 2003 12:40, Stefan Betermieux wrote:
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> Hello mailing list,
>
> I have some small problems with my budget dvb and dxr3 setup. Sometimes I
> get small drop outs when watching a live stream in vdr. The picture hangs
> for a fraction of a second and the sound also drops. It happens approx once
> a minute. When I record the stream and play it back, I get the same drop
> outs at the same places, so I am pretty sure that it is not related to the
> dxr3 plugin, but to the system (kernel) interfering the dvb stream. I have
> tried the low latency patches and the preempt patch, but it didn't help.
> Could anyone give an advice how to rise the priority of the stream or how
> to increase buffers? Can anyone reproduce these effects?
>

Yes, on my system the epg-scan seems to be the cause of these problems  (try 
to deactivate it by setting the scan timeout to 0h).
A bit more information about your system (CPU, memory, vdr and dxr3 version
etc.) would be useful.
Btw: normally this is no buffer size problem but a bit error problem or a
a/v sync problem (for the future a less sensitive algorithm is planned).
Try also the patch from Sascha Volkenandt (see [vdr] Re: [PATCH] Reduce CPU 
usage during playback). This patch has reduced the cpu usage during 
playback of about 40% !!! on my system (AMD K6-350)).

Hope that helps,

Kai




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