[vdr] Re: AW: EPG scan cause high load and AC3 drop outs

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

"Dr. Werner Fink" wrote:
> 
> ...
> > > hmmm .. 800-1000 is really three times more than I suspect.  IMHO
> > > the driver + firmware should be able to transport one TS frame
> > > aka 188 bytes at once ... and together with the appropiate buffer
> > > within the fimrware (let's say 1024 bytes) it should be possible
> > > to decrease the needed IRQ's and the calls of the IRQ handler
> > > in the driver.
> >
> > Or that the Driver has to be changed ?
> 
> IMHO ... _yes_, it has to be changed.  AFAICS from your log files
> send to me, the are unmotivated errors and longer drop outs within
> the TS stream received from the primary DVB card (initial error
> followed by a `Denkpause' of the driver/firmware).
> IMHO this is a bug in the driver/firmware.
> 
> @Klaus: Do you have connections to the drivers developrer to get
>         this debuged and (hopefully) fixed?

I'm afraid they don't take orders from me ;-)

> Maybe somewhere a lock/unlock pair is missed at the output ring buffer
> or one of the IRQ handlers isn't fully thread safe.  OR ... something
> is broken in the firmware, that means the TS stream mapped into
> PC memory space, is sometimes broken (maybe a temperature problem or
> a real firmware bug).

Am I right in assuming that the patch you posted last thursday (2003-03-27)
is supposed to fix this?

Klaus
-- 
_______________________________________________________________

Klaus Schmidinger                       Phone: +49-8635-6989-10
CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
Hofmark 2                               Email:   kls@cadsoft.de
D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
_______________________________________________________________


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