CDNWiki - View Source: MencoderCommands

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mencoder -dvd-device /dev/sr0 dvd://1 -aid 128 -sid 0 -ovc lavc -oac lavc -lavcopts vcodec=mpeg4:vpass=1:vbitrate=700:acodec=mp3:abitrate=192 -vf harddup -o video.avi



mencoder -dvd-device /dev/sr0 dvd://1 -aid 128 -ovc lavc -oac lavc -lavcopts vcodec=mpeg4:vpass=1:vbitrate=700:vhq:trell:acodec=mp3:abitrate=192 -vf harddup -o video.avi

Extract subtitles (why?)
mencoder -dvd-device /dev/sr0 dvd://1 -vo copy -ao copy -o /dev/null -vobsubout xXx-english -vobsuboutid eng

!!!Start Here

!!Ogg-Vorbis audio is not compatible with AVI containers. You must mux it separately.

Extract audio
<verbatim>
mplayer dvd://1 -alang en -ao pcm:fast:waveheader:audio.wav -vc null -vo null
</verbatim>

Encode audio
<verbatim>
oggenc --quality 4.0 -o audio.ogg audio.wav
 </verbatim>

Use a pipe to streamline the previous two
<verbatim>
mkfifo -m600 audio.pipe
</verbatim>
These two must be run simultaneously (source first) and cannot be backgrounded.
<verbatim>
mplayer dvd://1 -alang en -ao pcm:fast:waveheader:file=audio.pipe -vc null -vo null
oggenc --quality 4.0 -o audio2.ogg audio.pipe
rm audio.pipe
</verbatim>

Calculate target bitrate from movie length and encoded audio size<br>
movie length: 7446 seconds
<verbatim>
video_space=$(((700 * 8388608) - $(stat -c '%s' audio.ogg) ))
video_length=7446
video_bitrate=$(( (${video_space} / ${video_length}) / 1024))

mencoder dvd://1 -sid 0 -noaudio -ovc lavc -lavcopts vcodec=mpeg4:vpass=1:vbitrate=${video_bitrate}:vhq:trell \
 -vf harddup -o /dev/null
mencoder dvd://1 -sid 0 -audiofile audio.ogg -sid 0 -ovc lavc -oac copy -lavcopts \
 vcodec=mpeg4:vpass=2:vbitrate=${video_bitrate}:vhq:trell -vf harddup -o video.avi
</verbatim>