VIDEO DECODING SYSTEM

摘要

Video decoding system (Fig. 3) having a programmable variable-length decoding accelerator. The system includes a decoder processor and a variable-length decoding accelerator. The variable-length decoding accelerator is coupled to the decoder processor and performs variable-length decoding operations on variable-length code in the video data stream. The variable-length decoding accelerator is capable of decoding variable-length code according to any of a plurality of decoding methods. In one embodiment, the variable-length decoder includes a plurality of code tables stored in memory and a code table selection register that is programmable to dictate which of the plurality of code tables is to be utilized to decode variable-length code.