Re: [Muine] M4A mime detection

[Peter Johanson <latexer gentoo org>]

On Wed, Feb 02, 2005 at 11:27:03AM -0500, Matthew Good wrote:
> I built Muine with m4a support enabled, but I've been unable to play the
> songs in it.  It looks like Gnome isn't detecting the mime type of the
> m4a files (in Nautilus the properties dialog shows
> application/octet-stream) so Muine ignores the files.
> 
> I'm using Ubuntu/Gnome 2.8, and I can see the m4a entries in
> gnome-vfs.mime and gnome-vfs-mime-magic, so I'm not sure what I'm
> missing here.

the shared-mime-info package hasn't yet been updated to include checking
for these files. Please see
https://bugs.freedesktop.org/show_bug.cgi?id=604 for a patch. This
didn't really apply what need to be though, since it's for the source
package, and not for the installed system.

The relevant section in /usr/share/mime/packages/freedesktop.org.xml
should look like (context around the pieces added so you can see where
they added it):

<snip>
  <mime-type type="audio/x-flac">                                               
    <comment>FLAC audio</comment>                                               
    <comment xml:lang="no">FLAC-lyd</comment>                                   
    <glob pattern="*.flac" />                                                   
  </mime-type>                                                                  
  <mime-type type="audio/x-m4a">                                                
    <comment>AAC audio</comment>                                                
    <magic priority="50">                                                       
      <match type="string" value="ftypM4A" offset="4"/>                         
    </magic>                                                                    
    <glob pattern="*.m4a"/>                                                     
    <glob pattern="*.aac"/>                                                     
  </mime-type>                                                                  
  <mime-type type="audio/midi">                                                 
    <alias type="audio/x-midi" />
</snip>

After adding it, you need to do:
# update-mime-database /usr/share/mime

which will update the database. You'll prolly have to log out and in of
gnome again for the new mime info to get picked up.

-pete

-- 
Peter Johanson
<latexer gentoo org>