Get the ffmpeg package first from the repo by


sudo apt-get install ffmpeg


Then follow the following command lines to get going



3gp to avi : ffmpeg -i source.3gp -f avi -vcodec xvid -acodec mp3 -ar 22050 destination.avi


flv to 3gp : ffmpeg -i source.flv -s 176144 -vcodec h263 -r 25 -b 200 -ab 64 -acodec mp3 -ac 1 -ar 8000 destination.3gp


flv to mp4 : ffmpeg -i source.flv -vcodec h264 -r 25 -b 200 -ab 128 -acodec mp3 -ac 2 -ar 44100 destination.mp3


avi to mp4 : ffmpeg -i source.avi -f psp -r 29.97 -b 768k -ar 24000 -ab 64k -s 320240 destination.mp4


mp4 to 3gp : ffmpeg -i source.mp4 -s 176144 -vcodec h263 -r 25 -b 12200 -ab 12200 -ac 1 -ar 8000 destination.3gp


avi to 3gp : ffmpeg -i source.avi-s qcif -vcodec h263 -acodec mp3 -ac 1 -ar 8000 -r 25 -ab 32 -y destination.3gp


mpg to 3gp : ffmpeg -i source.mpg -s qcif -vcodec h263 -acodec mp3 -ac 1 -ar 8000 -ab 32 -y destination.3gp


Enjoy !





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