mpeg4ip not installable under mdv2009.1

$ LANG=C LC_ALL=C sudo urpmi mpeg4ip
A requested package cannot be installed:
mpeg4ip-1.6.1-0.20070928.3plf2009.0.i586 (due to unsatisfied 
libavcodec.so.51)
Continue installation anyway? (Y/n)


I tried a rebuild of the source package but it fails
Patch #1 (mpeg4ip-1.3-no-werror.patch.bz2):
+ /usr/bin/bzip2 -dc /home/luca/rpm/SOURCES/mpeg4ip-1.3-no-werror.patch.bz2
+ /usr/bin/patch -U -s -p1 -b --suffix .werror --fuzz=0
1 out of 1 hunk FAILED -- saving rejects to file 
common/video/iso-mpeg4/src/Makefile.am.rej

Bye
-- 
Luca