+%package -n libavfilter
+Summary: AV util lib
+Group: TO_BE/FILLED_IN
+
+%description -n libavfilter
+AV filter library
+
+%package -n libavfilter-devel
+Summary: AV util lib (devel)
+Group: Development/Libraries
+Requires: libavfilter = %{version}-%{release}
+
+%description -n libavfilter-devel
+AV filter library (devel)
+