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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And to do the opposite thing one may use ffmpeg2theora 🙂
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.
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.
Ok, that’s almost too easy to post it here, but I will see. 😉
But thanks!
Found this via a google search. Very useful thanks.
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.
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 🙂
Works nice, but windows doesn’t like it, so I use http://www.media-convert.com
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?
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.
Thanks, I always forget how to do this.
In fedora: login as root &
rpm -ivh http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm
yum install mencoder