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Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml
From: |
Pierre-Marie Gandoin |
Subject: |
Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml |
Date: |
Fri, 28 Nov 2008 20:04:16 +0100 |
User-agent: |
Mutt/1.4.2.1i |
Sorry for replying late, I was a little busy yesterday.
You will find some files that could help you to understand the bug here :
http://eidolon.univ-lyon2.fr/~pmgandoi/Misc/
The diff between GNUtunesDB.xml files is not so easy to do because of some
kind of renumbering between the original file and the regenerated one.
Best regards,
P-M. Gandoin
On Thu, Nov 27, 2008 at 02:13:34PM +0100, H. Langos wrote:
>
> On Wed, Nov 26, 2008 at 09:23:44PM +0100, Pierre-Marie Gandoin wrote:
> > > you could also do a
> > > "ls -lsaR <mointpoint> > /tmp/before"
> > > before you add that last critical file and a
> > > "ls -lsaR <mointpoint> > /tmp/after"
> > > afterwards and then post the output of
> > > "diff -u /tmp/before /tmp/after"
> >
> > First thing, the bug is not reproducible : after loading the 32946 version
> > of GNUtunesDB.xml, then loading back the 32945 version, my iPod does not
> > work any longer !
> >
> > The new limit seems to be 32767. So I give you the diff file between a
> > recursive ls with 32766 entries (iPod fine) and the same with 32767
> > entries (iPod out of order).
>
> Now that sounds more like a program limit to me. 2^15-2 and 2^15-1.
>
>
> In an iTunes forum I've found that there used to be a limit in iTunes:
>
> > http://forums.appleinsider.com/showthread.php?t=65822
> ...
> > It used to be 32,767 songs, which means that it was likely based on a 2Byte
> > integer (w/negatives).
> >
> > If they made it 3 byte, it's 8,388,608 I think..
>
>
> So, if the iTunes database file that gnupod produces is based on
> that old format, this would indeed explain the problem you see.
>
> I am not very good at reading lots of pack/unpack perl code to see
> if the stuff in iTunesDB.pm is correct. (Any volunteers?)
>
> Instead I suggest doing the full circle GNUtunesDB.xml -> iTunedDB ->
> GNUtunesDB.xml
> to see if anything gets lost along the way..
>
> That means that you'd have to
> -backup your GNUtunesDB.xml file after adding some files more than the ipod
> accepts
> -run mktunes
> -move your GNUtunesDB.xml away or delete it
> -run tunes2pod
> -compare the resulting GNUtunesDB.xml with the one that you backed up.
>
> That could tell us if there is something fundamentaly wrong with
> the iTunesDB that gnupod produces.
>
> > (I can also send you the two ls outputs
> > tgzipped (800kB) if you want.)
>
> That could help. But please send those to my address instead of the list.
>
>
> cheers
> -henrik
>
>
>
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>
- [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml, Pierre-Marie Gandoin, 2008/11/24
- Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml, H. Langos, 2008/11/25
- Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml, Pierre-Marie Gandoin, 2008/11/25
- Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml, H. Langos, 2008/11/26
- Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml, Pierre-Marie Gandoin, 2008/11/26
- Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml, Pierre-Marie Gandoin, 2008/11/26
- Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml, H. Langos, 2008/11/27
- Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml,
Pierre-Marie Gandoin <=
- Re: [Bug-gnupod] Problem over 32946 entries in GNUtunesDB.xml, Pierre-Marie Gandoin, 2008/11/29