Re: [Rhythmbox-devel] ubuntu m4a

[Jonathan Matthew <jonathan kaolin wh9 net>]

On Sun, Jun 24, 2007 at 02:43:47PM -0400, John Russell wrote:
> Every time I try to play an m4a file in RB I get the following message
> 
> ** Message: don't know how to handle audio/mpeg, mpegversion=(int)4,
> framed=(boolean)true, codec_data=(buffer)1210, rate=(int)44100,
> channels=(int)2
> 
> I have googled around and checked the ubuntu forums and installed all
> of the gst-plugins-bad/ugly for both normal and multiverse packages
> and still nothing.  All of the posts claim that this is all that is
> necessary to get m4a to work.
> 
> I am running ubuntu 7.04 and I have, and this may be where the problem
> is, added the musix sources which are some of the advanced sound
> packages (jack, rosegarden, ardour etc).  This comes with the 2.5-1
> version of libfaad-2.0.

As I understand it, faad 2.5 is ABI incompatible with 2.0, which causes
this:

> > gst-launch-0.10 filesrc location="song.m4a" ! faad ! alsasink
> WARNING: erroneous pipeline: no element "faad"
> 
> even though
> 
> > gst-inspect-0.10 | grep faad
> faad:  faad: AAC audio decoder

.. because the faad plugin is present in the gstreamer registry, but
can't be loaded due to missing symbols.

I haven't looked at this particular mess too closely, but maybe you can
rebuild gst-plugins-bad against faad 2.5.