1、安装yum的fpmforge源
rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm2、
安装mencoeder、ffmpeg、flvtool2、yamdi等
yum install libgcc gcc gcc-c++ libstdc++ libstdc++-devel compat-glibc compat-libstdc++-33 libevent libevent-devel
yum install ffmpeg ffmpeg-devel mplayer mencoder flvtool2 yamdi3
执行编码的参数
mencoder /root/1.rmvb -o /root/2.flv -of lavf -oac mp3lame -lameopts abr:br=56 -ovc lavc -lavcopts vcodec=flv:vbitrate=500:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:dia=4:cmp=6:vb_strategy=1 -vf scale=480:-3 -ofps 12 -srate 220504、为flv增加关键帧
flvtool2 -U 2.flv
或
yamdi -i 2.flv -o 3.flv //注意添加了关键帧的视频为3.flv
