[vdr] Re: Re : VDR files to vob

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

Carsten Koch wrote:
> 
> Patrick GUENEAU wrote:
> ...
> > The first few seconds of Video are sometimes without synced audio. Audio
> > is missing or you can here distorted sounds.
> ...
> > I don't see this as a problem or a bug with VDR but (if it is only
> > related to CAM) rather a bug with DVB driver and CAM handling.
> 
> That may be, but still it should be easy to work around in VDR.
> VDR could do all the things (switch to the channel, start reading
> the data from the card, etc.) 30 seconds earlier and just throw
> these first 30 seconds away.
> 
> Just an idea. I have not investigated the first few seconds of data
> recorded by VDR myself.

When VDR starts recording, it drops everything until the first I-frame
and then begins saving the data. See the 'synced' variable in VDR/remux.c.

Since it must be possible to start replay at *any* point in a DVB stream
(at least at an I-frame), I don't see what VDR should additionally do here.

Even if VDR would "throw away" the first 30 seconds (which is quite a long time),
it would again face the same problem: start saving at the next I-frame.

Maybe I'm missing something here, but currently I don't see how this could
be done differently. Besides, the DVB card replays VDR recordings just fine...

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
_______________________________________________________________