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 w
In adition to Daniels answer, I recommend you to check ffmpeg-php, is a wrapper library for PHP that adds an object-oriented API for accessing and retrieving information from video and audio files using ffmpeg.
You can do a lot of things, from converting between formats, get video frame images for thumbnails and more in an easy way...
Have you tried SWFObject for displaying FLVs? Used this recently in a project and it works a like a charm. Very easy to configure as well.