Re: libdvdnav

Sun Oct 12 2003, Godwin Stewart wrote:
> Hi,
> 
> I'm having problems with one particular DVD. The problem's I'm having aren't
> actually with the Ogle DVD player but with Xine, but I suspect a problem
> with libdvdnav which is why I'm here.
> 
Well they have there own mailing list.  We don't have anything to do with
libdvdnav, they have just copied most of the code...


> Problem encountered:
> I can navigate through the menus fine. When it comes to playing the movie
> itself I get a dialog with a warning saying "The source can't be read. Maybe
> you don't have enough rights for this, or source doesn't contain data (e.g:
> not disc in drive) (Expected NAV packet but none found.)"
> 
> Debug output gives this:
> input_dvd: Error getting next block from DVD (Expected NAV packet but none
> found.)
> 
Well I'm not sure if this is a problem in libdvdnav or a problem with
the DVD.  In either case it fails here (and not with your set-top player)
becuase there isn't that much extra code that tries to be robust in 
libdvdnav (or Ogle).  There are various offsets on DVD where there should
be navigation information, if this should happen to be false we simply fail.
It would be better if we tried to search for closest navigation information
and recoverd that way...

-- 
Håkan Hjort