A number of us have been discussing a Tika implementation which could, for example, bind to a live multimedia stream and parse content from the stream until it finished.
An excellent example would be watching Bonnie Scotland beating R. of Ireland in the upcoming European Championship Qualifying - Group D on Sat 13 Jun @ 17:00 GMT
I located a JMF Wrapper for ffmpeg which 'may' enable us to do this
I am not sure... plus it is not licensed liberally enough for us to include so if there are other implementations then please post them here.
I 'may' be able to have a crack at implementing this next week.