[vdr] Re: Re : VDR files to vob

[Andreas Schultz <aschultz@cs.uni-magdeburg.de>]

Hi,

On Sunday 14 July 2002 21:12, Klaus Schmidinger wrote:

[...]

> I guess what I'd first like to see is somebody who can explain
> *EXACTLY* what PES and PS is, and what the difference between these

I guess i have outed myself already earlier, but let's see if i have learned 
something.

Everything is really explained in ISO/IEC-13818-1.

Section 2.4.3.6 describes PES packets. VDR already deals with those.

Section 2.5.3.3 describes PS packets. PS streams can contain a number of 
different packet types. One of those being PES packets, others are mostly 
only relevant in DVB streams.
For us the only relevant PES packet type is 0xBA. It contains a SCR (system 
clock reference), the stream mux rate and the PES packet itself.

So PS streams really are PES stream with an small additional header that 
contains no really usefull information. The only possible info in there is 
the SCR, which can be used to sync the decoder to the encoder. But the DVB 
card is not using this.

Andreas
-- 
Andreas Schultz <aschultz@cs.uni-magdeburg.de>
Student of computer science

"In accordance with plans for Linux OS world domination
      infiltration of governments is vital (:-))."