A Pipelined Low Power Architectural MPEG-4 Video Codec Chip with Deblocking Filter for Mobile Wireless Multimedia Applications

摘要

We present a low-power MPEG-4 video codec chip capable of delivering high-quality video data in mobile wireless multimedia applications. The discussion will focus on the architectural design techniques for implementing a high-performance and low power consumption video compression/decompression chip. By introducing partitioning of HW/SW modules, the efficiently optimized frame memory interface architecture, motion estimation skip scheme, and macroblock based pipeline deblocking filtering scheme, the proposed MPEG-4 video codec has low power consumption for mobile wireless multimedia applications such as mobile phone. PDA and DMB. The proposed MPEG-4 video codec can perform 30 frames/s of QCIF or 7.5 frame/s of GIF at 27MHz with 128k～144kbps rates. Power consumption is 290mW and the chip size is 9.7mm × 9.7mm at 0.35μm CMOS technology.