For whatever reason MEncoder didn't want to work for me recoding a Vorbis audio stream to mp3 with Lame, so two steps were added in between.
#1. Demuxing OGM to separate stream-files
ogmdemux input.ogm
#2. Converting audio track to mp3
soundconverter -b -m audio/mpeg -s .mp3 input.ogm-a1.ogg
#3. Muxing video, audio and subtitle into an avi
mencoder input.ogm-v1.avi -o output.avi -audiofile input.ogm-a1.mp3 -oac copy -ovc lavc -lavcopts vcodec=mpeg4 -sub input.ogm-t1.str
#1-3. Of course at the end I managed to do steps 1-3 in a single step:
mencoder input.ogm -aid 1 -sub input.srt -o output.avi -oac mp3lame -lameopts cbr=128 -ovc lavc -lavcopts vcodec=mpeg4
I guess to achieve the all inclusive #1-3, I had to install some stuff and make mplayer for myself...
sudo apt-get install libasound2-dev libfreetype6-dev zlib1g-dev libmp3lame-dev libfontconfig1-dev libexpat1-dev ogmtools
./configure --enable-theora --enable-libdv --enable-mp3lame --enable-mp3lame-lavc --enable-mp3lib --enable-debug
But of course I don't know what exactly did the trick.
For a better quality it's possible to use extra options, like
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate=5000:mbd=2:trell
To get needed value of vbitrate do a
mencoder -ovc frameno -o frameno.avi -oac copy input.avi
and read your value in the terminal window.Sources:
Gentoo Forums
MemoryLeak
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