Bug#443772: shared-mime-info: audio/x-wav and video/x-msvideo conflict in magic file

[Sebastian Dröge]

forwarded 443772 https://bugs.freedesktop.org/show_bug.cgi?id=12541
tags 443772 + confirmed upstream
thanks

Am Montag, den 24.09.2007, 00:32 +0200 schrieb Stephane DESNEUX:
> Package: shared-mime-info
> Version: 0.22-2
> Severity: normal
> 
> A WAV file matches audio/x-wav but also video/x-msvideo (both are defined at priority 50 in /usr/share/mime/magic). 
> 
> If I use xdgmime (cvs version) to detect mimetypes *only* with magic numbers (without globs), I get no mimetype at all because the lookup function in xdgmimemagic.c detects multiple mime types with same priority and can't make a decision (the result is discarded: see xdgmimemagic.c:685)
> 
> I suppose that tools based on xdgmime (gnome-vfs for example) suffer the same problem but I didn't checked.
> 
> I solved the pb easily by adjusting video/x-msvideo magic priority to 49 in /usr/share/mime/packages/freedesktop.org.xml and running update-mime-database.
> 
> Perhaps another way to workaround the pb is to make video/x-msvideo match "RIFF" *AND* "AVI" (instead of "RIFF" or "AVI" as stated in xml file line 15516)
> 
> Finally, even if I found a workaround or two, I don't know if it's an upstream bug or not. Both the magic
> file and the source code to use it are involved. The specification doesn't give a detailed magic matching algorithm...

Thanks for reporting, I've forwarded this bug upstream:

Bye