In case you have an OGG video file for example from a screencast and want to convert it to a avi file for dailymotion or youtube all you have to do is:
mencoder video.ogg -ovc lavc -oac mp3lame -o video.avi
I am aware that there are better methods: you could specify more flags for probably better quality. But this is seldom necessary when you are about to host these videos on some online service.
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September 4, 2007 at 16:00
And to do the opposite thing one may use ffmpeg2theora
September 4, 2007 at 16:09
If you have a nice one-liner using ffmpeg2theora I would be pleased to post it here.
If you wonder about such short-tips: to be honest they are mainly for myself: I often forget these, and by posting them here I can find them pretty quickly.
September 5, 2007 at 5:22
Well, ffmpeg2theora does the conversion in reverse, i.e. [almost] any format to Ogg Theora.
The syntax is simple,
ffmpeg2theora file.avi
will generate file.ogg. I use it mostly to convert inefficiently-compressed MJPEG movies from my digicam.
September 5, 2007 at 13:56
Ok, that’s almost too easy to post it here, but I will see.
But thanks!
September 11, 2007 at 23:19
Found this via a google search. Very useful thanks.
November 7, 2007 at 20:14
I also found this via google. I had such a hard time getting a program to work to do this for a few videos and all it takes is one line at the command line. Awesome.
December 6, 2007 at 5:13
thanks a lot !
Had to try to convert ogg to avi from windows. Googling with “conbert ogg avi” was a nigthmare, (found plenty non working free/shareware on windows, requiring different codecs) but just adding the simple world “linux” brought me right here to an easy solution
May 16, 2008 at 17:09
[...] Another reason why I love Linux. Having created a screen capture in the OGG file format, I needed to give it to a friend who prefers to work with AVI formats. After a few minutes of searching, viola… a simple and elegant answer was found thanks to liquidat. [...]
June 14, 2008 at 8:48
Works nice, but windows doesn’t like it, so I use http://www.media-convert.com
July 16, 2008 at 12:11
The solution you have should work in ubuntu. What about fedora. Mine does not have libmp3lame. Attempts to install libmp3lame using yum were futile. Any other alternative?
July 16, 2008 at 23:31
Sleeyp Head, I used this on a Fedora machine. But to do such things you need the livna repository activated. Install all mencoder and lame related packages, that should do.
January 26, 2009 at 20:30
Thanks, I always forget how to do this.
January 28, 2009 at 0:22
In fedora: login as root &
rpm -ivh http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm
yum install mencoder