{"id":399,"date":"2014-07-28T01:07:45","date_gmt":"2014-07-27T17:07:45","guid":{"rendered":"http:\/\/www.fujiangyun.com\/?p=399"},"modified":"2014-07-28T01:11:32","modified_gmt":"2014-07-27T17:11:32","slug":"hevc%e7%a0%94%e7%a9%b6%e5%b9%b3%e5%8f%b0hm%e7%9a%84lcu%e5%88%92%e5%88%86%e8%af%a6%e8%a7%a3%ef%bc%88%e8%bd%ac%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.fujiangyun.com\/blog\/?p=399","title":{"rendered":"HEVC\u7814\u7a76\u5e73\u53f0HM\u7684LCU\u5212\u5206\u8be6\u89e3\uff08\u8f6c\uff09"},"content":{"rendered":"

\u9996\u5148\uff0c\u5bf9\u4e8e\u56db\u53c9\u6811\u7684\u5206\u5272\u5f62\u5f0f\uff0c\u5927\u5bb6\u60f3\u5fc5\u90fd\u5df2\u7ecf\u4e86\u89e3\u4e86\uff0c\u8fd9\u91cc\u5c31\u4e0d\u8fdb\u884c\u8fc7\u591a\u7684\u8d58\u8ff0\uff0c\u4e0b\u9762\u662f\u5e38\u89c1\u7684\u56db\u53c9\u6811\u7ed3\u6784\u793a\u610f\u56fe\uff1a<\/p>\n

\"\"<\/p>\n

\u63a5\u4e0b\u6765\u662f\u4ee3\u7801\u90e8\u5206\uff1a<\/p>\n

\u8be5\u8fc7\u7a0b\u4e3b\u8981\u7531TEncCu::xCompressCU\u51fd\u6570\u7684\u9012\u5f52\u5b9e\u73b0\u3002<\/strong><\/p>\n

 <\/p>\n

    \/\/ further split\u8fdb\u4e00\u6b65\u8fdb\u884cCU\u7684\u5206\u5272\r\n    if( bSubBranch && bTrySplitDQP && uiDepth < g_uiMaxCUDepth - g_uiAddCUDepth )\r\n    {\r\n      UChar       uhNextDepth         = uiDepth+1;\r\n      TComDataCU* pcSubBestPartCU     = m_ppcBestCU[uhNextDepth];\r\n      TComDataCU* pcSubTempPartCU     = m_ppcTempCU[uhNextDepth];\r\n\r\n      for ( UInt uiPartUnitIdx = 0; uiPartUnitIdx < 4; uiPartUnitIdx++ )\/\/\u6bcf\u6b21\u5206\u6210\u56db\u4e2a\u66f4\u5c0f\u7684CU     {         pcSubBestPartCU->initSubCU( rpcTempCU, uiPartUnitIdx, uhNextDepth, iQP );           \/\/ clear sub partition datas or init.\r\n        pcSubTempPartCU->initSubCU( rpcTempCU, uiPartUnitIdx, uhNextDepth, iQP );           \/\/ clear sub partition datas or init.\r\n\r\n        Bool bInSlice = pcSubBestPartCU->getSCUAddr()+pcSubBestPartCU->getTotalNumPart()>pcSlice->getDependentSliceCurStartCUAddr()&&pcSubBestPartCU->getSCUAddr()getDependentSliceCurEndCUAddr();\r\n        if(bInSlice && ( pcSubBestPartCU->getCUPelX() < pcSlice->getSPS()->getPicWidthInLumaSamples() ) && ( pcSubBestPartCU->getCUPelY() < pcSlice->getSPS()->getPicHeightInLumaSamples() ) )\r\n        {\r\n          if( m_bUseSBACRD )\r\n          {\r\n            if ( 0 == uiPartUnitIdx) \/\/initialize RD with previous depth buffer\r\n            {\r\n              m_pppcRDSbacCoder[uhNextDepth][CI_CURR_BEST]->load(m_pppcRDSbacCoder[uiDepth][CI_CURR_BEST]);\r\n            }\r\n            else\r\n            {\r\n              m_pppcRDSbacCoder[uhNextDepth][CI_CURR_BEST]->load(m_pppcRDSbacCoder[uhNextDepth][CI_NEXT_BEST]);\r\n            }\r\n          }\r\n\r\n#if AMP_ENC_SPEEDUP\r\n          if ( rpcBestCU->isIntra(0) )\r\n          {\r\n            xCompressCU( pcSubBestPartCU, pcSubTempPartCU, uhNextDepth, SIZE_NONE );\/\/\u9012\u5f52\u51fd\u6570\r\n          }\r\n          else\r\n          {\r\n            xCompressCU( pcSubBestPartCU, pcSubTempPartCU, uhNextDepth, rpcBestCU->getPartitionSize(0) );\/\/\u9012\u5f52\u51fd\u6570\r\n          }\r\n#else\r\n          xCompressCU( pcSubBestPartCU, pcSubTempPartCU, uhNextDepth );         \r\n#endif\r\n\r\n          rpcTempCU->copyPartFrom( pcSubBestPartCU, uiPartUnitIdx, uhNextDepth );         \/\/ Keep best part data to current temporary data.\r\n          xCopyYuv2Tmp( pcSubBestPartCU->getTotalNumPart()*uiPartUnitIdx, uhNextDepth );\r\n        }\r\n        else if (bInSlice)\r\n        {\r\n          pcSubBestPartCU->copyToPic( uhNextDepth );\r\n          rpcTempCU->copyPartFrom( pcSubBestPartCU, uiPartUnitIdx, uhNextDepth );\r\n        }\r\n      }<\/pre>\n
\u65e2\u7136\u5df2\u7ecf\u77e5\u9053\uff0cCU\u7684\u5206\u5272\u662f\u901a\u8fc7\u9012\u5f52\u5b9e\u73b0\u7684\uff0c\u90a3\u4e48\u600e\u4e48\u786e\u5b9a\u54ea\u4e2auiDepth\u7684CU\u4e3arpcBestCU\u5462\uff1f
\n\u4e0a\u8ff0\u9012\u5f52\u51fd\u6570\u7ed3\u675f\u540e\uff0c\u7136\u540e\u518d\u901a\u8fc7xCheckBestMode( rpcBestCU, rpcTempCU, uiDepth);\u5224\u65ad\u51b3\u5b9a\u662f\u5426\u9009\u62e9\u672c\u5c42CU\u8fd8\u662f\u4e0b\u5c42CU.<\/p>\n
\u4ee5\u4e0b\u662f\u7f16\u7a0b\u5b9e\u73b0\u8f93\u51fa\u4e00\u4e2aLCU\u7684\u5206\u5272\u6a21\u5f0f\uff1a<\/p>\n
  \/\/ We need to split, so don't try these modes.\r\n  if(!bSliceEnd && !bSliceStart && bInsidePicture )\r\n  {\r\n    for (Int iQP=iMinQP; iQP<=iMaxQP; iQP++)     {       if (isAddLowestQP && (iQP == iMinQP))       {         iQP = lowestQP;       }       \/\/ variables for fast encoder decision       bEarlySkip  = false;       bTrySplit    = true;       fRD_Skip    = MAX_DOUBLE;       rpcTempCU->initEstData( uiDepth, iQP );\r\n     \/\/==\u8f93\u51fa\u5206\u533a\u6df1\u5ea6\u4fe1\u606fdepth==\/\/\r\n      cout<<\"Depth:\";\r\n      for(Int i=0;i<=uiDepth;i++)\r\n       cout<<\"->\";\r\n       cout<<uiDepth<<endl;\r\n\r\n      \/\/ do inter modes, SKIP and 2Nx2N\r\n<\/pre>\n
\u6253\u5370\u8f93\u51fa\u7684\u7ed3\u6784\u4e3a\uff1a
\n <\/p>\n
Depth:->0
\nDepth:->->1
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->1
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->1
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->1
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->2
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3
\nDepth:->->->->3<\/p>\n","protected":false},"excerpt":{"rendered":"
\u9996\u5148\uff0c\u5bf9\u4e8e\u56db\u53c9\u6811\u7684\u5206\u5272\u5f62\u5f0f\uff0c\u5927\u5bb6\u60f3\u5fc5\u90fd\u5df2\u7ecf\u4e86\u89e3\u4e86\uff0c\u8fd9\u91cc\u5c31\u4e0d\u8fdb\u884c\u8fc7\u591a\u7684\u8d58\u8ff0\uff0c\u4e0b\u9762\u662f…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[59,57,58,60],"class_list":["post-399","post","type-post","status-publish","format-standard","hentry","category-4","tag-h-265","tag-hevc","tag-hm","tag-lcu"],"_links":{"self":[{"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=399"}],"version-history":[{"count":19,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/399\/revisions"}],"predecessor-version":[{"id":418,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/399\/revisions\/418"}],"wp:attachment":[{"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}