I'm looking to setup video uploads for users on a site and want to have them viewed through a Flash player. The site is already partially built (by someone else) and I'm wondering what kind of technologies there are to deal with the video files, specifically in PHP.
I'm thinking the files need to be converted to an FLV. After that I think it's just loading the FLV, like an SWF in Flash.
They also want to do mp3's with Flash streaming, so it'd be cool if it could also support mp3's.
ffmpeg is the tool for you. It's a major opensource video encoding library that a lot of other tools are based on. It's a bit tricky to use directly, but I think there are a few wrappers around.