[vdr] Re: what causes cTS2PES errors?

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

Rene Bartsch wrote:
> 
> Am Mon, 2003-05-26 um 21.00 schrieb Gregor Lawatscheck:
> > At 19:41 26/05/2003, you wrote:
> > >That explains a lot of problems with invalid MPEG-streams (and why
> > >MPlayer swallows with VDR-recordings).
> >
> > If you mean choking on feeding -ao/-vo mpegpes that could be just as much
> > because of the vid mem size in newer firmwares to be honest.
> 
> Replaying with MPlayer only (-vo xv -ao oss).
> 
> >
> > >[...]
> > >CRCs are a basic need for digital, aerial transmissions to keep the
> > >bitstream valid. All streams will be corrupt without CRC (full-featured
> > >cards do CRC-checking when filtering).
> > >
> > >So this should be added as fast as possible (before 1.2.0 to have a
> > >really stable system). This also would increase reception in case of bad
> > >weather.
> >
> > As Klaus says "there's a life after 1.2.0" :).
> 
> Yes, but calling it stable if you even do not receive correctly?

I don't believe its the task of the application to do the CRC checking.
This should (if not already) be done in the driver.

> > I believe there's some CRC32 checking code in mpegtools (
> > http://www.metzlerbros.org/dvb/index.html ) maybe that can be used.
> >
> > If at all, it should only be done on recording as transfering to say an
> > av7110 or dxr3 they have their own means of dealing with broken streams in
> > a less interruptive manner than just throwing the packet away? But then
> > again broken reception crashes the decoder after a while more often than
> > not. On full cards in live mode not a lot vdr can do against it?

There's _nothing_ VDR can do about this in live mode.

Klaus
-- 
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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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