[vdr] Testing multi CAM mode

timo timo.helkio at nic.fi
Sat Nov 19 18:35:00 CET 2005


On Sat, 2005-11-19 at 16:09 +0100, Klaus Schmidinger wrote:
> timo wrote:
> > On Fri, 2005-11-18 at 14:49 +0100, Klaus Schmidinger wrote:
> >>Hi Mikko,
> >>
> >>if you have only one CAM in a CI adapter with two slots, then the line
> >>
> >>           newCaSupport = true;
> >>
> >>at the end of cCiHandler::SendCaPmt() could be triggering the jumpy
> >>live stream. Could you please try without this line?
> >>
> >>Klaus
> >>
> > 
> > 
> > Hi and thank you Klaus
> >         
> >         With this change I am recording now three encrypted channels
> >         from Canal+ Local subsciption and watch some else in the same
> >         time. It did take some time system to stabilize, when I started
> >         these recordings almost in the same time, vdr did restart two
> >         times befor to get stabilized. With two recordings in the same
> >         time works steady.
> >         When I now change channel, I get many messages like this:
> >         
> >         Nov 19 16:42:35 piano vdr[14066]: cAudioRepacker(0xC0): skipped
> >         208 bytes to sync on next audio frame
> >         Nov 19 16:42:35 piano vdr[14066]: cAudioRepacker(0xC0): skipped
> >         16 bytes to sync on next audio frame
> >         Nov 19 16:42:36 piano vdr[14047]: cAudioRepacker(0xC0): skipped
> >         328 bytes to sync on next audio frame
> >         Nov 19 16:42:36 piano vdr[14060]: cAudioRepacker(0xC0): skipped
> >         196 bytes to sync on next audio frame
> >         
> >         
> >         My setup:
> >         
> >         Gentoo Linux with 2.6.13-gentoo-r3 kernel
> >         dvb-drivers from kernel with recent patch of Andrew de Quincey
> >         to 
> >         ci-handling added manually editing
> >         Nexus 2.1 dvb-s with CI and "CAM: Conax 4.00e, 01, 0B00, 04B1"
> >         Terratec-Cinergy dvb-c 1200
> >         
> >         Timo Helkiö
> 
> Hi Timo,
> 
> when you record one encrypted channel and switch the live channel between
> some other encrypted channels on the same transponder, do you get
> distortions in the _recording_ at the times when you switched the live
> channel? This is currently my main concern. I know that the AlphaCrypt
> CAMs have problems there (which will hopefully be fixed in a future
> software update for those), and was told that the Aston CAMs don't
> have such problems (that was somebody from aston-france.com telling me
> that, so it's not an actual test report). So I wonder whether the Conax
> CAMs work as expected...
> 
> As for the cAudioRepacker messages: a full featured DVB card can only
> handle a limited number of channels at the same time (be it encrypted or
> not), so maybe it is just too much for it. You could try the same
> scenario with unencrypted channels to see whether the messages appear
> there, too.
> 
> Klaus


Hi

Yes, I can see distortions, as a mather of fact there is jump in
recording and screen after that is mixture of previuos "old" stream and
new one with distortions between them.

      Timo




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