diff --git a/README.md b/README.md
index f0ad912..7a3ad0d 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # x264
 
+A H264/AVC video decoder and encoder.
+
diff --git a/x264.spec b/x264.spec
new file mode 100644
index 0000000..b23219a
--- /dev/null
+++ b/x264.spec
@@ -0,0 +1,154 @@
+%define        libname  lib%{name}
+
+Name:          x264
+Version:       20120401
+Release:       1mamba
+Epoch:         1
+Summary:       A free H264/AVC encoder
+Group:         Applications/Multimedia
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Stefano Cotta Ramusino <stefano.cotta@openmamba.org>
+URL:           http://www.videolan.org/developers/x264.html
+Source:        ftp://ftp.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-%{version}-2245-stable.tar.bz2
+License:       GPL
+BuildRequires: nasm
+BuildRequires: yasm
+BuildRequires: libgtk-devel
+BuildRequires: libX11-devel
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+A H264/AVC video decoder and encoder.
+
+%package -n %{libname}
+Summary:       A free library for encoding H264/AVC video streams
+Group:         System/Libraries
+
+%description -n %{libname}
+x264 is a free library for encoding H264/AVC video streams.
+
+%package -n %{libname}-devel
+Summary:       Static libraries and headers for %{libname}
+Group:         Development/Libraries
+
+%description -n %{libname}-devel
+x264 is a free library for encoding H264/AVC video streams.
+
+This package contains static libraries and header files need for development.
+
+%prep
+%setup -q -n %{name}-snapshot-%{version}-2245-stable
+
+%build
+%configure \
+  --enable-visualize \
+  --enable-pic \
+  --enable-shared \
+  --extra-cflags="%{optflags}" \
+  --host=%{_host}
+
+#  --enable-pthread \
+#  --enable-gtk \
+# FIXME: --enable-mp4-output need gpac
+
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%post   -n %{libname} -p /sbin/ldconfig
+%postun -n %{libname} -p /sbin/ldconfig
+
+%files
+%defattr(-,root,root)
+%{_bindir}/*
+#%{_datadir}/%{name}
+%doc AUTHORS COPYING doc/*.txt
+
+%files -n %{libname}
+%defattr(-,root,root)
+%{_libdir}/*.so.*
+
+%files -n %{libname}-devel
+%defattr(-,root,root)
+%{_includedir}/*.h
+%{_libdir}/*.so
+%{_libdir}/pkgconfig/*.pc
+
+%changelog
+* Sun Apr 01 2012 Silvan Calarco <silvan.calarco@mambasoft.it> 20120401-1mamba
+- update to 20120401
+
+* Sat Oct 08 2011 Automatic Build System <autodist@mambasoft.it> 20111007-1mamba
+- automatic version update by autodist
+
+* Mon Oct 03 2011 Automatic Build System <autodist@mambasoft.it> 20111002-1mamba
+- automatic version update by autodist
+
+* Fri Jul 29 2011 Automatic Build System <autodist@mambasoft.it> 20110728-1mamba
+- automatic update by autodist
+
+* Mon Jul 25 2011 Automatic Build System <autodist@mambasoft.it> 20110724-1mamba
+- automatic version update by autodist
+
+* Sun Mar 27 2011 Silvan Calarco <silvan.calarco@mambasoft.it> 20110326-1mamba
+- update to 20110326
+
+* Wed Mar 16 2011 Automatic Build System <autodist@mambasoft.it> 20110315-1mamba
+- automatic update by autodist
+
+* Thu Jun 10 2010 Silvan Calarco <silvan.calarco@mambasoft.it> 20100125-2mamba
+- rebuilt with ffmpeg 0.5.2
+
+* Tue Jan 26 2010 Automatic Build System <autodist@mambasoft.it> 20100125-1mamba
+- automatic update by autodist
+
+* Mon Oct 26 2009 Automatic Build System <autodist@mambasoft.it> 20091025-1mamba
+- automatic update by autodist
+
+* Thu Oct 15 2009 Automatic Build System <autodist@mambasoft.it> 20091014-1mamba
+- automatic update by autodist
+
+* Tue Aug 25 2009 Automatic Build System <autodist@mambasoft.it> 20090824-1mamba
+- automatic update by autodist
+
+* Wed Aug 19 2009 Automatic Build System <autodist@mambasoft.it> 20090818-1mamba
+- automatic update by autodist
+
+* Tue Aug 11 2009 Automatic Build System <autodist@mambasoft.it> 20090811-1mamba
+- automatic update by autodist
+
+* Wed Aug 05 2009 Automatic Build System <autodist@mambasoft.it> 20090804-1mamba
+- automatic update by autodist
+
+* Wed Jul 29 2009 Automatic Build System <autodist@mambasoft.it> 20090728-1mamba
+- automatic update by autodist
+
+* Wed Jul 22 2009 Automatic Build System <autodist@mambasoft.it> 20090721-1mamba
+- automatic update by autodist
+
+* Fri Jul 10 2009 Automatic Build System <autodist@mambasoft.it> 20090709-1mamba
+- automatic update by autodist
+
+* Fri Jan 02 2009 Silvan Calarco <silvan.calarco@mambasoft.it> 20090101-1mamba
+- automatic update by autodist
+
+* Fri Nov 14 2008 Silvan Calarco <silvan.calarco@mambasoft.it> 20081113-1mamba
+- update to 20081113
+
+* Mon May 14 2007 Stefano Cotta Ramusino <stefano.cotta@openmamba.org> 20070513-1mamba
+- update to 20070513
+- spec file fixed and updated
+- added x264 package
+- added missing build requirements
+
+* Mon Jun 27 2005 Alessandro Ramazzina <alessandro.ramazzina@qilinux.it> svn_20050620-2qilnx
+- rebuild and moved to devel repository
+
+* Sat Jun 25 2005 Matteo Bernasconi <voyagernm@virgilio.it> svn_20050620-1qilnx
+- First Build
\ No newline at end of file