There are
JabaTV in hlds(about 7 years haven't update), and it already death.
The idea is make a JabaTV in srcds.
Some information:
Server Side:
Game server:
socket + sourcemod
Back end server:
java??
Client Side:
applet, flash, html5??
nowaday flash or html5 are powerful, can do alot of things.
May be you can watch cs:s or tf2 live match on you phone.
it possible?
demo
Link