Real-time multimedia data transmission module based on linux

Abstract

Recently the demand for multimedia services on the Internet has increased. But, server based systems that offer multimedia data services are mostly unable to satisfy the expectations of the users. In this paper we propose SRTPIO (Special RTP Input/Output) module, that processes RTP (Real-time Transport Protocol) data in the kernel with SIO (Special Input/Output) Mechanism, as a solution to transport the multimedia data in the server based system more efficiently. SIO mechanism improves the transfer speed because it reduces the overheads which are generated in the process of data copying and contextswitching between the user mode and the kernel mode, taking place in the kernel- level of a general server based system. SRTPIO module which integrates SIO mechanism and RTP data processing in the kernel supports efficient multimedia data transfer architecture.