diff --git a/README.md b/README.md
index b629547..aba58f3 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # x265_212
 
+x265 HEVC Encoder.
+
diff --git a/x265_212.spec b/x265_212.spec
new file mode 100644
index 0000000..4796bde
--- /dev/null
+++ b/x265_212.spec
@@ -0,0 +1,87 @@
+Name:          x265_212
+Version:       4.0
+Release:       2mamba
+Summary:       x265 HEVC Encoder
+Group:         System/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://bitbucket.org/multicoreware/x265_git/wiki/Home
+Source:        https://bitbucket.org/multicoreware/x265_git/downloads/x265_%{version}.tar.gz
+License:       GPL
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libgcc
+BuildRequires: libnuma-devel
+BuildRequires: libstdc++6-devel
+## AUTOBUILDREQ-END
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description
+x265 HEVC Encoder.
+
+%package -n lib%{name}
+Group:         System/Libraries
+Summary:       Shared libraries for %{name}
+
+%description -n lib%{name}
+This package contains shared libraries for %{name}.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      pkg-config
+
+%description -n lib%{name}-devel
+This package contains libraries and header files for developing applications that use %{name}.
+
+
+%debug_package
+
+%prep
+%setup -q -n x265_%{version}
+
+%build
+%cmake -d build_x265 \
+   -S ../source
+
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall -C build_x265
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+
+%files
+%defattr(-,root,root)
+%{_bindir}/x265
+
+%files -n lib%{name}
+%defattr(-,root,root)
+%{_libdir}/libx265.so.*
+%doc COPYING
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%{_includedir}/x265.h
+%{_includedir}/x265_config.h
+%{_libdir}/libx265.a
+%{_libdir}/libx265.so
+%{_libdir}/pkgconfig/x265.pc
+
+%changelog
+* Mon Dec 16 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 4.0-2mamba
+- legacy package
+
+* Mon Sep 16 2024 Automatic Build System <autodist@openmamba.org> 4.0-1mamba
+- automatic version update by autodist
+
+* Mon Apr 15 2024 Automatic Build System <autodist@openmamba.org> 3.6-1mamba
+- automatic version update by autodist
+
+* Sun Nov 07 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 3.5-1mamba
+- package created using the webbuild interface