We're putting togther a (demo of a) streaming video site, and we'd like to not have to code the stream configurations (x,y sizes, URIs) in two places (once in WMS and once in the website). Instead I'd like WMS to be the authority, and the website just to read the available streams (and transcode formats) from it and list those. (Each item in the list then launches the actual stream in a client-side player)
Obviously I could just interrogate the config and transrate.xml files, but that seems pretty brittle (w.r.t. version changes etc...). I was looking for a published API (preferably REST - I don't really want to have to start extending the server).