DSP-based system for real-time video communications

This article describes the architecture of a digital signal processor (DSP) -based real-time video communications system and the implementation of the ITU-T H.263 video coding standard on the system. The system incorporates a Texas Instruments TMS320C80 Multimedia Video Processor (MVP), a high-perfor mance, single-chip multiprocessor-based DSP that is optimized for image and video operations. Our implementation of the ITU-T H.263 is optimized to ma ke full use of the special features of the TMS320C80 MVP. The various relat ed processing tasks have been efficiently distributed on the parallel proce ssing elements within the TMS320C80 MVP. (C) 1999 John Wiley & Sons, Inc.