[vdr] AW: Re: AW: Re: AW: VDR -> DVD

["Bläser, Lars" <LBlaeser@hofheim.de>]

> -----Ursprüngliche Nachricht-----
> Von: Andreas Schultz [mailto:aschultz@cs.uni-magdeburg.de]
> Gesendet am: Dienstag, 18. Juni 2002 11:44
> An: vdr@linuxtv.org
> Betreff: [vdr] Re: AW: Re: AW: VDR -> DVD
> 
>
> > transferplugin (copys a recording within the cutting marks 
> to DVD +/- R/RW)
> > will be possible (still unsolved is the errorcorection of 
> the streams, as
> > long as pvastrumento is closed-nonlinux code it makes things worse)
> 
> I have to admit to not following the discussion about 
> remuxing DVB recordings 
> for use on DVD's. Could you give an overview on why 
> postprocessing via pvainstrumento is needed? 

dvb-streams often have "small inperfections" like  packets are lost or brocken, played as pes with timestamp inside the stream its no problem to keep it sync, if you demux the A/V the timestamp is lost and a brocken package will often be ignored so the result is a async stream (audio or video is shorter the the other), beside this it can happen that your PES-stream is so faulty so your remultiplexer simply exits in the middle of the file (lot of programs simply deny the possebility of errors in a mpeg file - makes programming easy)

> Sure, maximum size of PES packets 
> on DVD is 2048, 
> but getting that right is almost trivial. The biggest problem 
> i could see, is 
> keeping the datarate constant and within certain limits (a 
> bit less than 
> 10Mbit/s). I not sure, but don't use DVB broadcasts usualy 
> less than that?

i´ve never seen something above 10MBit/s but iirc its up to 15MBit/s