error when trying to play 3gp video with totem 2.18.1

[Jordi G. Segura]

Binary package hint: totem

The error is (in catalan):
Per poder reproduir aquesta pel·lícula us calen els següents descodificadors que no estan instal·lats::
In english that would be
To play this film you need next decoders which are not installed

Adaptive Multi Rate (AMR) decoder
H.263 decoder

ProblemType: Bug
Architecture: i386
Date: Sat Apr 28 13:53:28 2007
DistroRelease: Ubuntu 7.04
ExecutablePath: /usr/bin/totem
Package: totem-gstreamer 2.18.1-0ubuntu3
PackageArchitecture: i386
ProcCmdline: totem file:///home/eva/Fotos/Fotos%20Mobil/05-01-05_1414.3gp
ProcCwd: /home/eva
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=ca_ES.UTF-8
 SHELL=/bin/bash
SourcePackage: totem
Uname: Linux openminds 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007 i686 GNU/Linux