Re: [Freevo-users] Problem with VCD menu

[James Simmons]

I've been poking around in the freevo source code and found file 
vcdinfo.py in directory mmpython/disc and I think I understand why my 
VCD menu isn't listing properly.  It seems to be similar to the problem 
I had when my CD wasn't recognized by freevo.  This code reads the 
device file directly, seeks to a byte offset, and looks at what it finds 
there.  In Mandrake it has authority to do that, and apparently in SuSE 
it still doesn't.  When I changed SuSE to allow anyone to read the 
device freevo was able to detect that a CD had been inserted into the 
drive, whereas initially it could not.  Perhaps freevo needs to be able 
to open the device for reading and writing (even though no writing seems 
to be going on) to detect the menu items for a VCD.

I'm going to try this out tonight.

James Simmons

James Simmons wrote:

I have the same version of Freevo installed on two different 
computers, one running Mandrake 8.2 and the other running SuSE 8.2, 
and I have noticed that the VCD menu works better on the Mandrake box 
than it does on the SuSE box.

First, some background.  I have made many of my own VCDs.  On these 
VCDs  I sometimes put more than one MPEG file.  On my DVD players I 
can use the "Skip" buttons to move between these files.

When I use one of these VCDs on Mandrake I see a menu that lists as 
many items as I have MPEG files, plus one extra one at the beginning.  
I can choose any of these items and it will play the corresponding 
MPEG file.  I can also play the first extra item and it will just play 
the first MPEG file, so there is no real difference between playing 
the first item and the second item.

On the SuSE box things are different.  There I ALWAYS see two items: 
the "extra" one at the beginning plus a second one that seems to 
represent ALL of the MPEG files combined.  I can play either item and 
the effect is that I play through all of the MPEG files in sequence.  
Of course I can't skip ahead to a given item; I always have to start 
at the beginning of the first item and use the fast forward key to 
progress through the files.

Other than the extra item at the beginning, Mandrake seems to do 
exactly what I would want.  I can't figure out why SuSE isn't working 
the same way.  I have looked at the source code and I can't figure out 
where the VCD chapter menu is built.

Any hints would be appreciated.

James Simmons



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