面向嵌入式系統(tǒng)的MPEG-4解碼加速器的設計和優(yōu)化.pdf

1、1i1039‘85分婁寫：!烈鏨密級：壘2工UDC：監(jiān)!量學號：Q轂2鯉東南大掌碩士學位論文面向嵌入式系統(tǒng)的MPEG4解碼加速器的設計和優(yōu)化研究生姓名：鹽煌導師姓名：睦生主l數(shù)撞中淆學位級別亟學科專業(yè)名稱徽皇壬堂皇固馇電王塋論文提交日期2Q豎生墨且2旦論文答辯H期2QQ生蘭且!璺旦學位授了單位盤鴦盎堂學位授F日期生目旦答辯委貝會。t席冀建苤!副教援2評闊人龔建苤(副熬援2韭藍(副熬援22006年3月9【=AbstractAbstract

2、WiththefastdevelopmentofdigitaltechnologykindsofmobileequipmentsareacceptedbypeopleVideoplayerisintegratedbymoreandmoremobileproducts。Withtheadvantageofcodingtechniqueandcompressingability，MPEG一4isbecomingmostpopularvide

3、ofomatMPEG4playerhasagreatperspectiveasahandholdproductButthemassofcomputationgivealotofpressureontheprocessorofembeddedequipmentwhoseuseARM7asacoreSoftwaredecodingalwayscan’tmeettherequirementofrealtimeplayThepurposeoft

4、hispaperisthat，designahardwareacceleratorMMA，fortheGarfieldSOCtohelpinMPEG一4CIFdecodingInordertoknowtheperformanceofMPEG4decodingprecisely，werunsoftwaredecodingprogramonthehiighlevelhardwaremodelARMulatorfirstByanalysist

5、heresult，wegettheprofileofeveryoperationofMPEG一4decoding，whichindicatesIDCTVLCdecodingandmotioncompensationoccupythemostCPUresourcesSo，theseoperationsaretheimportantpartsofhardwareaccelerationWitheveryoperation，thepaperf

6、irstlyoptimizesthealgorithm，thendecidesthehardwareconstruetionandthendesignsthecircuitdetailsFinallythepapergivesouttheperformanceandareaofMMATheresultindicatethatthisMPEG一4videodecodermeettherequirementofMPEG4C1Fformatr