I've used bigbluebutton in a recent project in order to build a web conferencing platform. I was unhappy with the quality of the service and noticed a delay between the voice and the video.
Technically bigbluebutton used Flex integrated with a red5 server that sends the voice to Asterisk for voice mixing (Konference) and treats the video locally by implementing a codec in java.
Bigbluebutton is very well done and the sources are really well written. As I understood that Flex it self limited to choice of media server implementation such as the impossibility to implement UDP sokets etc.
So my question is that,another way than Flex to implement video chat application in browser. Is JavaFX a good solution ?