Kuo, J.-H.J.-H.KuoHo, C.-C.C.-C.HoHuang, K.-L.K.-L.HuangShiu, J.J.ShiuJA-LING WU2018-09-102018-09-102003https://www.scopus.com/inward/record.uri?eid=2-s2.0-1542647345&doi=10.1109%2fTCE.2003.1261258&partnerID=40&md5=a75e5d376367bc59266e23605060e36bhttp://scholars.lib.ntu.edu.tw/handle/123456789/302014Due to the high-speed development in semiconductor technology, general-purpose computers can process digital video, audio and graphics easily. Nowadays, the similar functionality has shifted from the general-purpose computer to the so-called media-processor one. Since the processor is targeted on mass-produced consumer electronics devices, the price and the ease of use are the main concern. The latest MPEG-4 video coding standard, which consumes relatively low bit-rate but yields acceptable quality, meets the target exactly. In this paper, by realizing an MPEG-4 codec using both general-purpose processor and media-processor, we investigated some issues related to the use of a media-processor for satisfying various multimedia compression and processing requirements. The investigated issues include the speedup of the MPEG-4 decoder based on a media-processor DSP chip, a multimedia co-processor or hardware accelerator, the Very Long Instruction Word (VLIW) and the Single Instruction Multiple data stream (SIMD) programming techniques. Moreover, a media-processor based MPEG-4 solution for set-top box applications is also included.Embedded system; MPEG-4; Performance measurement; SIMD; VLIWDigital signal processing; Embedded systems; Image coding; Image compression; Multimedia systems; Real time systems; Very long instruction word architecture; Video signal processing; Media processor; Motion pictures experts group; Single instruction multiple data stream; Video decoder; Decodingjournal article10.1109/TCE.2003.12612582-s2.0-1542647345