There’s a number of ways you can convert FLV files to the AVI format on Linux. Most of them involve firing up the terminal and entering some cryptic commands (who would’ve guessed? :P)

  • The open source mencoder is one possibility. See this how-to for a simple usage example.
  • Another common solution is to use ffmpeg. Here’s an example :
    ffmpeg -i myvideo.flv -f avi -vcodec mpeg4 myvideo.avi
    Or, if you prefer the MPG format :
    ffmpeg -i myvideo.flv myvideo.mpg
  • Manolis Tzanidakis has written a bash script that simplifies the FLV2AVI encoding. The script uses mencoder.

Related : How to convert FLV to AVI on Windows