Hi,
I am trying to develop a web based application for editing videos, like joining videos with transitions in between, overlaying the videos, using chroma key etc. The architecture I am looking for is like - there will be a front end (like you tube editor) where the user can have the drag drop interface. And the actual processing and mixing of the video will be taking place in the backend and the final video will again be streamed to the front end. Front end is managable. I want to know if there are any video/media editing frameworks or libraries that can be implemented at the backend (preferably PHP or java).
Thanks!!