I've chosen this bug about including the Adaptive multi-rate compression
(AMR) support in Ubuntu because getting this into gstreamer (although
unlikely) would make media files that use AMR play OK in Ubuntu.

With Hardy, trying to play 3GP files (and presumably AMR audio only
files) pops up a dialog without proposing download of the codec:

"An error ocurred - The playback of this movie requires the following decoders 
which are not installed:
Adaptive Multi Rate (AMR) decoder
H.263 decoder"

Direct support of AMR in Ubuntu is not likely to happen anytime soon,
after some searching I think the clear explanation is the licensing and
patents surrounding that codec.

To my knowledge VLC, mplayer and ffmpeg implement their own codec
support, yet they would have the same licensing problem (dsitribution).

For more information see:

Discussion about AMR support in XineLib (2005):
http://sourceforge.net/mailarchive/message.php?msg_name=18bc366d0504220156aac84e2%40mail.gmail.com

AMR reference implementation in Linux (see Legal disclaimer about distribution):
http://www.penguin.cz/~utx/amr

AMR's entry in Wikipedia:
http://en.wikipedia.org/wiki/Adaptive_multi-rate_compression

Marking this as "whishlist, incomplete" as the licensing issue may be
resolved later on but there are work arounds available online such as
converting 3GP to other supported formats.


** Changed in: gst-plugins-ugly0.10 (Ubuntu)
   Importance: Undecided => Wishlist
       Status: New => Incomplete

-- 
AMR ("amrnb") decoder plugin not included in Gstreamer
https://bugs.launchpad.net/bugs/184555
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