Well... while I don't know much about how to send the info embedded in a page as a live video, you'll definitely have to set your codecs to be able to encode a stream quickly and be decode even faster. A good A/V codec combo for streaming purpose is x264+CELT. As far as x264 is concerned you'll want to use a recent revision... I'd say any revision made after mid-January 2010 will have settings that will help for streaming, and you should probably use --tune zerolatency possibly along with other settings, although I'm not sure. As for the build, you can get one made by JEEB
here. Getting 1471 is probably a good idea, but any post 1400 revision will probably do fine. Now, as far as the audio is concerned, you can get a build of CELT,
here (never encoded with it so I'm not sure about what settings to suggest). I've never personally dealt with A/V encoding for streaming purposes, so this is about as far as I can help you with... this is probably step 1 and there's other stuff like how to actually stream this encode which I honestly know nothing about. You might need to set up a page but perhaps not - there probably is some way to just use your IP and port to directly stream the info into the receiver's player, but I wouldn't know how.