Multimedia processor designers are always challenged by performance, cost and flexibility. Due to the technological advance in FPGA, one of the promising solutions is to enable dynamically reconfigurable SoC in multimedia application. This paper utilizes Reconfigurable SoC (RSoC) in multimedia processing. We propose a feasible run-time reconfigurable system where dynamically Reconfigurable Processing Unit (RPU) is integrated with General Purpose Processor (GPP) at different abstraction level. Furthermore, a simple analysis on performance improvement is given accordingly. As a proof-of-concept, an RSoC prototype based on Xilinx Virtex-II Pro FPGA is also presented at last.