VS编码器帧内预测硬件实现

he fast algorithm of intra prediction is difficult to meet the real-time demand on DSP because of the limitations of sequential order of DSP software architecture; while FPGA with the high calculation speed and strong parallel processing ability has become the ideal platform for H.264 and AVS codec. In this paper, a method which applies the resource-sharing, high parallel and pipeline structure has been put foward .The method, in the analysis of 5 prediction modes of AVS intra luma and their similarity in operation, has put the pixel prediction and mode decision in a module and realized the sharing of public operation unit and concurrent execution of a variety of modes on consideration of both processing speed and realizing costs. The simulation and comprehensive results show that the design has been completely meet real-time processing requirements of the standard (704 x 576, 30 f/s) digital video.