适于AVS视频解码器的可配置存储器设计

Design of Configurable Memory for AVS Video Decoder

设计了一种适用于AVS视频解码器的可配置存储器,可工作在5种不同的模式,主要应用于反扫描、反量化及反变换模块,既可用来进行反扫描中的数据移动、反变换器所需的转置操作,又可用来存储中间结果,将反扫描、反量化和反变换合并为一个流水线单元并行处理。该设计省去了存储中间结果所需的大量存储器,加快了处理速度,满足高清视频的处理要求。

A configurable memory for AVS video decoder is designed in this paper. This memory can work on five different modes, and it can be used in inverse scan, inverse quantization and inverse transform module. It performs the data moving in inverse scan, transpose operation in inverse transform and holding the temporary results while providing a platform for a combined block-level pipeline stage, which can integrate inverse scan, inverse quantization and inverse transform module together. The design uses less intermediate memories which is needed in higher processing speed, and can fulfill the requirement of high definition video processing.