Software defined QCIF simple profile MPEG-4 for portable devices using dynamically reconfigurable DSP

摘要

The ISO MPEG-4 standard is emerging as the dominant digital video standard, and efficient, programmable MPEG-4 video codecs are paramount for emerging mobile devices that aggregate telecommunications with features including digital video. Efficient QCIF simple profile MPEG-4 video codec algorithms are developed for typical 16-bit, dual execution unit DSPs and the additional impact of tightly coupled, co-processors used to dynamically reconfigure the DSP data path is quantified. Efficient, programmable solutions consuming approximately 63 Mcycles, significantly lower than estimates as high as 400 Mcycles, are generated, while dynamic reconfiguration reduces this cost an additional 20%.