FFMPEG Support?

[five.video.land11]

Hey, I'm making my own video hosting site, I've made the player using Adobe Flash, But it can only play .FLV files.
This is where FFMPEG comes into it.
I want to make a script so that when the user uploads a video, it detects if it is a FLV Video (Done That Part) And if it isn't, it uses FFMPEG to convert it to a FLV.
I have a compiled linux FFMPEG binary, but I can't use it, because I don't know any other way appart from exec() and system() functions (I am writing the site in PHP)
Is there a way to use FFMPEG Without these functions?
And If there is, how can I do it?

---------- Post added at 05:01 AM ---------- Previous post was at 04:56 AM ----------

Whoops, didn't see that there was already a thread similar.
Sorry, don't know how to delete the thread

[Livewire]

Just an FYI too, Video Hosting would fall under File Hosting and result in a permanent suspension anyways. That's part of the reason we don't support FFMPEG, the other being that FFMPEG's a drag on resources.