Many video conversion commands involving mencoder can be found at video conversion.
mplayer was compiled without libmp3lame support
When trying to convert a video using libmp3lame as output audio codec you may get the error message
# mencoder lambo-01.dv -o lambo-1.avi -vf pp=ci -oac mp3lame -ovc lavc MEncoder SVN-r33887-4.5 (C) 2000-2011 MPlayer Team MPlayer was compiled without libmp3lame support.
Then you should compile mplayer with libmp3lame support. To do this, install the development packages of libmp3lame, for example with SUSE Linux:
yast -i libmp3lame-devel
then compile mplayer again.
Couldn't find video filter 'x264'
Couldn't find video filter 'x264'. Failed to open the encoder.
Solution: Install x264 devel packages, rebuild mplayer