1.Download the rpmforge-release package.
2.Install DAG's GPG key
# rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
3.（可以取消）Verify the package you have downloaded
# rpm -K rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm: (sha1) dsa sha1 md5 gpg OK
4.Install the package
# rpm -i rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
5.Then try to install something like this：
# yum -y install mplayer
# yum -y install mplayer-gui
# yum -y install ffmpeg*
注：
选择URL2：tar.gz
./configure之后出想yasm错误：解决：
# yum install yasm
STEP 3
# make # make install # mplayer
If you get 'unable to load shared library' or similar errors, run
'ldd ./mplayer' to check which libraries fail and go back to STEP 3 to fix it.
Sometimes running 'ldconfig' is enough to fix the problem.