ffmpeg ogg to flv conversion
 

I have a video created using qtrecordmydesktop (ogg format).It created a very large file of about 220Mbs.I need to convert it to flv using ffmpeg but I have no idea how to use it.The flv files need to be of small size since I will be using them in my website.

If you could please tell me how to use ffmpeg to create highly compressed flv vidoes from ogg.
Thanks

I just tried it. The simplest command I tried first was:
ffmpeg -i video.ogv out.flv

The flv file came out MUCH bigger than the original ogv file. So I tried to shrink the frame size:
ffmpeg -i video.ogv -s 400x300 out.flv

The file came out smaller this time, but you couldn't read anything from the screen :)

I suggest you read the manual page ('man ffmpeg') too see the command-line usage of ffmpeg and then play around and tweak the parameters until you get the result you're happy with and can put it on you site.

Good luck!