Mencoder是MPlayer媒体播放器的一个伴生程序，可用于编码或转换MPlayer可以读取的任何音频或视频流。

步骤1。安装MenCoder和MPlayer

CentOS/RHEL和Fedora用户，请确保在系统中启用了ATrpms存储库。
让我们开始安装MPlayer和Mencoder。

用于CentOS/RHEL和Fedora:

# yum install mencoder

用于Ubuntu和Debian:

$ sudo apt-get update
$ sudo apt-get install mencoder

步骤2。检查音频/视频编码

成功安装Mencoder之后，让我们检查可用的音频/视频代码

视频编解码器:

$ mencoder -ovc help

MEncoder svn r34540 (Ubuntu), built with gcc-4.6 (C) 2000-2012 MPlayer Team

Available codecs:
   copy     - frame copy, without re-encoding. Doesnt work with filters.
   frameno  - special audio-only file for 3-pass encoding, see DOCS.
   raw      - uncompressed video. Use fourcc option to set format explicitly.
   nuv      - nuppel video
   lavc     - libavcodec codecs - best quality!
   vfw      - VfW DLLs, read DOCS/HTML/en/encoding-guide.html.
   qtvideo  - QuickTime DLLs, currently only SVQ1/3 are supported.
   xvid     - XviD encoding
   x264     - H.264 encoding

音频编解码器:

$ mencoder -oac help
MEncoder svn r34540 (Ubuntu), built with gcc-4.6 (C) 2000-2012 MPlayer Team

Available codecs:
   copy     - frame copy, without re-encoding (useful for AC3)
   pcm      - uncompressed PCM audio
   mp3lame  - cbr/abr/vbr MP3 using libmp3lame
   lavc     - FFmpeg audio encoder (MP2, AC3, ...)