I am setting up a CMS built in PHP, and now i need to add a part where the user can convert a video from FLV to MP4 format. I have searched for scripts and solutions but nothing works. I was ready to pay for the software but "Aviberry" software costs $5000 and "sothinkmedia" does not work properly on Linux servers. If anyone has something that will work for sure I would appreciate all suggestions.
The mencoder part of MPlayer should be able to do this, or try ffmpeg. Both can be called from the command line (or from a script) to do the conversion.