AVS編碼器結構并行化設計與軟件實現(xiàn).pdf

1、上海大學碩士學位論文AVS編碼器結構并行化設計與軟件實現(xiàn)姓名：王柳祎申請學位級別：碩士專業(yè)：電路與系統(tǒng)指導教師：潘志浩20080101上海大學碩士學位論文AVS編碼器結構并行化設計與軟件實現(xiàn)ABSTRACTIntheprofessionalapplicationsandourdailylife，thepursuitofhigherdefinitionvideobecomestobethesocialneed，andtheincreasi

2、ngnetworkbandwidthdevelopingalsomakeitpossibletomeetsuchneedsEspeciallyintheareaofvideosurveillance，thetraditionalMPEG2codingstandardCannotusethewholebandwidthwithhighefficiencyintheconditionofliDusage，inmanydifferentapp

3、licationsandpractice，specialneedsCannotusespecializedchipsolutionseasilyaswellButwiththepopularityofmulticoreCPUandit’Scontinuouslydeclininginprices，thelowcostimplementationofreal—timeHDvideocompressionbecomestobeapossib

4、ilityThustherealizationofsoftwarebasedmulticoreHDvideoencoderinthisprojecthasgreatpracticalsignificancetothemarketforitsefficientcomputingperformanceandconvenientexpansiontodifferentapplication—specifiedneedsThispaperaim

5、ingatHDvideoandmulticorePCplatform，onthebasisofstudyingtheslicebasedtraditionaldatadomainparallelcodingmethod，proposedwithinnovationintheoryandachievedafunctionaldomainparallelcodingmethodbasedonAVS—P2codingstandardThema

6、inmethodistoparallelizetheserialvideocodingstructureindifferentmodules，suchasintramodule，intermodule，entropycodingmoduleandSOon，thusformingafunctionaldomainparallelcodingstructureThisPaperaimingatRMsoftwaremodel，research

7、edtherelatedpointsbetweenhardwareresourcesofmulticoreplatformandfunctionaldomainparallelcodingstructure，overcamethetechnicaldifficultiesinmulti—threadsschedulingandresourceprotection，finallyimplementedthesoftwareverifyin

8、gmodelandalsoacceleratedtheHDvideocodingspeedComparedtotheslicebasedtraditionalvideoparallelcodingmethod，thisnewfunctionaldomainvideoparallelcodingmethodCanimprovetheimageSNRwhilegeneratingthesamedataflowsize，orreducethe