Ubuntu howto: converting .FLV to MPG

sudo apt-get install ffmpeg

ffmpeg -i video.flv -ab 56 -ar 22050 -b 500  -s 320x240 video.mpg

finally to make your life easier just put it a script file to excute later

mkdir ~/scripts; 
echo 'ffmpeg -i $1 -ab 56 -ar 22050 -b 500  -s 320x240 $1.mpg' > f2mpg.sh; 
mv Flv2Mpg.sh ~/scripts

now whenever you want to convert FLV file to mpg just shot the

 ~/scripts/f2mpg.sh Flv_video_file_name.flv

for further information check

man ffmpeg

[tags] ubuntu, linux, howto, convert, flv, mpg, avi, ffmpeg[/tags]