CAJ | 학술논문

针对VC-1标准下的WMV视频解码，提出了一种基于CEVA平台下的优化方案。该方案对运动补偿、去方块滤波、反量化、反变换的算法结构进行优化后，再利用CEVA的SIMD（单指令多数据处理）和VLIW（超长指令字）技术实现DSP平台上的优化。实验仿真表明：经过优化处理后，各个模块解码时间对比之前有了大幅度降低．解码速度最高可达30帧／秒，能够有效的支持标清和高清视频的实时解码。
침대VC-1표준하적WMV시빈해마，제출료일충기우CEVA평태하적우화방안。해방안대운동보상、거방괴려파、반양화、반변환적산법결구진행우화후，재이용CEVA적SIMD（단지령다수거처리）화VLIW（초장지령자）기술실현DSP평태상적우화。실험방진표명：경과우화처리후，각개모괴해마시간대비지전유료대폭도강저．해마속도최고가체30정／초，능구유효적지지표청화고청시빈적실시해마。
An optimization for decoding WMV（Windows Media Video） based on CEV_A platform for video code one standard is proposed in this paper. With the SIMD（Single Instruction Multiple Data） and VLIW（Very Long Instruction Word） technology, optimization could be implemented after the data-processing method in Motion Compensation,De-blocking Filter,De- quantization,Inverse Transform adjusted. The experiment shows that the decoding rate could reach 30 fp/s after optimization and the propose design could perform real-time decoding for standard definition and high definition video decoder.