Developing multimedia applications with  JMF         T.G.Venkatesh      
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Extending JMF
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•New protocol for sinking the data can be supported by defining, implementing and integrating DataSink class.
•Special effects can be applied on the media by implementing Effect PlugIns.
•New media transmission format can be supported by implementing Packetizer and Depacketizer PlugIns codecs and integrating with JMF.
•Change the default transport protocol used by the RTP and RTCP using RTPConnector.
•High performance Codec or MediaHandler (using faster algorithm or a hardware accelerator ) can be implemented and used in place of default implementation..