cd /etc/yum.repos.d/

wget http://mirrors.163.com/.help/CentOS6-Base-163.repo

yum update

rpm -Uhv http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm

yum install libgcc gcc gcc-c++ libstdc++ libstdc++-devel compat-glibc compat-libstdc++- libevent libevent-devel

yum install ffmpeg ffmpeg-devel mplayer mencoder flvtool2 yamdi