Opening a file makes the program crash

[Ratchanan Srirattanamet]

When I try to open a (MP4, maybe another too) file in LiVES, the program crashes and print the following:

/usr/lib/lives/lives-exe: symbol lookup error: /usr/lib//lives/plugins/decoders/zzavformat_decoder.so: undefined symbol: av_find_stream_info

Steps to reproduce:
1.Open LiVES
2.Click File > Open file/directory
3.Select a MP4 file.

Here is the full text from the terminal:

peat@somporn-P4M900T-M2:~$ lives

LiVES 2.2.0
Copyright 2002-2013 Gabriel Finch (<email address hidden>) and others.
LiVES comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details.

LiVES info: Invalid effect farneback_analyserfarneback_analysersalsaman1 found in compound effect image_stabilizer, line 4

LiVES info: Invalid effect farneback_analyserfarneback_analysersalsaman1 found in compound effect motion_analyser, line 4

avformat detected format: mov,mp4,m4a,3gp,3g2,mj2
/usr/lib/lives/lives-exe: symbol lookup error: /usr/lib//lives/plugins/decoders/zzavformat_decoder.so: undefined symbol: av_find_stream_info
peat@somporn-P4M900T-M2:~$

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: lives 2.2.0~ds0-1
ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
Uname: Linux 3.13.0-35-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Sep 18 20:34:49 2014
InstallationDate: Installed on 2014-04-19 (152 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
SourcePackage: lives
UpgradeStatus: No upgrade log present (probably fresh install)