freshrpm的更新太慢，我现在不用了
# wget http://rpm.livna.org/livna-release-7.rpm
# rpm -ivh livna-release-7.rpm
安装多媒体解码器
# yum -y install gstreamer-plugins*
# yum install -y ffmpeg mjpegtools
安装多媒体播放器VLC
yum -y install videolan-client
执行
运用程序 -->影音-->VideoLan CLient
