A middleware architecture for streaming media over IP networks to mobile devices

Chameleon is 100% Java middleware for multimedia streaming to heterogeneous mobile clients, which allows the dynamic configuration of protocols with respect to application requirements and available network resources. We evaluate the dynamic reconfigurability of the middleware in order to demonstrate runtime adaptation. We specially concentrate on the secondary quality transformation technique (SQT) of the middleware which enables clients to not only subscribe to media groups in accordance with available resources and network capacity but to also adapt media quality within each quality group dynamically in accordance to resource constraints.