Abstract
In today’s media-rich environment, almost all the new gerenation of wireless device emphasize the functions of one's own multimedia. Liking cell-phone whitch emphasize except some converse functions of itself has the other functions of take pictures, photograph, broadcast the film, listen to the music and broadcast, etc. Certainly must need some degree equipment of hardware and software to support so abundant functions. The power comsumptive and the performance of wireless device has been the very important topic all the time, so can not choose too avdanced hardware to finish so abundant multimedia functions, but also can not choose too low grade hardware to cause efficiency to be low and can not carry out the application of the multimedia. So under efficiency and power comsumptive doing in the test amout, the choice of the hardware is turned into the important topic that can accomplish a good wireless device of multimedia event more. As to these wireless devices at present, dual-core architecture is popular. Dual-core is referred to that one MPU (main processor unit) matches another common processor (coprocessor), and coprocessor can divide into two kinds of choices, one is DSP, another kind is ASIC. The part of MPU will generally be used for dealing with the work of some MMI or Multi-tasking, and the part of coprocessor will generally be used for carrying out some operation amount bigger and more customary procedures. Hardware like this can needn't choose high-order processor may carry out the powerful multimedia functions too. Main of this thesis is stating the method, couse and analysis of performance by implementing one Video Codec on Dual-core platform. The MPU in Dual-core choose ARM9 20T, DSP is adopted the PACDSP developed in STC of ITRI, the experimenting platform is in PAC platform of ITRI. And Video Codec has adopted H.264/AVC which is popular very much recently. Also stating how to accomplish such complicated algorithm in such architecture, and how the degree which can reach.