适于h.264和avs标准视频编解码地环路滤波器设计和实现

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1、上海交通大学硕士学位论文optimization.Byoptimizingthefilteringprocess,theprocesscontrolmodulekeepsthepipelinefullybusy,reducestheclockcyclesofprocessingonemacroblockandlowertheminimumfrequencyofreal-timefiltering.Inthemeantime,themoduletakesadvantageofon-chipcachetoreducethepressur

2、eonthesystembuses.Finally,thispaperimplementstheloop-filterbyusingHDLandperformedthesimulationandverification.Thesimulationresultshowsthearchitecturethispaperdevelopsisabletofilteronemacroblockof4:2:0formatswithin192clockcycles.Thisreachestheminimumvalueofsinglefilterd

3、esign.TheHDTVsignalcanbeprocessedinreal-timeat94MHz.Aftersynthesizing,theanalysisshowsthat,with0.18manufacturingtechniques,thisdesigncansupportthefrequencyofupto220MHzandmeettherequirementofreal-timehighdefinitiondecodingof1080psignal.KEYWORDS:H.264/AVC,AVS,de-blocking

4、filtering,loopfiltering,VLSIdesign,reusedesign-IV-上海交通大学硕士学位论文图例索引图1-1国际视频编码标准的发展[1]...............................................................................................1 图1-2AVS视频标准提出时间[2]......................................................................

5、............................2 图1-3H.264编码系统中环路滤波器的位置[5]............................................................................4 图1-4H.264解码系统中环路滤波器的位置[5]............................................................................4 图2-1数字集成电路设计流程...................

6、.................................................................................11 图2-2三级流水线工作原理........................................................................................................13 图2-3基于IP复用结果的SOC系统结构[14].........................................

7、...................................14 图2-4基于嵌入式平台的H.264和AVS解码器结构图[16].....................................................15 图2-5基于SOC设计的H.264和AVS解码器结构图[16].......................................................16 图3-1H.264标准定义的滤波顺序.....................................

8、........................................................19 图3-2H.264标准中滤波边界及其相关象素....................................