Re: Question on Ogle standard compliance

Thu Jul 03 2003, Reinhard Lueling wrote:
> 
> 
> Hello,  
> 
> Does anyone know if the Ogle browser complies to the specifications done 
> by the DVD forum for the DVD-Video ?? 
> 
Yes. (That is I know).  It does not comply.  The DVD specification is not
open, so we don't have access to it.  Ogle is based on guesses and small
pices of information form all around.  So the probablility that it would
comply to everything in the specification is basicly nonexistent.

The video codec part, of DVD-Video is just a limited set of MPEG2 and that
should be conformant (or very close to conformant).
The same goes for audio, where it's either, AC3 (A/52), MPEG audio layer 2
or plain PCM.

> If the Ogle navigator does not comply to this, what functionality is missing ?? 

Not having the specification we can only guess.  There are a few areas 
where we obviously, just from comparing agains consumer or Windows based
players, differ.   

VOBU stills.  Timing of some video sequnces.  Deficiencies in the
subpicture overlay handling, timing related and some missing features.
The automatic selection of audio and subtitle tracks.  Something
called navigation timers.  Suffel and Random play.  Some restrictions
that are not respected in various places.  Then there are a lot of
usability related issues where we could improve a lot.
 
You'll have to ask more specific questions if you want a better answer.

-- 
Håkan Hjort