forked from mirror/libbpg
137 lines
6.9 KiB
C
137 lines
6.9 KiB
C
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/* The copyright in this software is being made available under the BSD
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* License, included below. This software may be subject to other third party
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* and contributor rights, including patent rights, and no such rights are
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* granted under this license.
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*
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* Copyright (c) 2010-2014, ITU/ISO/IEC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file TEncSlice.h
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\brief slice encoder class (header)
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*/
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#ifndef __TENCSLICE__
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#define __TENCSLICE__
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// Include files
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#include "TLibCommon/CommonDef.h"
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#include "TLibCommon/TComList.h"
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#include "TLibCommon/TComPic.h"
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#include "TLibCommon/TComPicYuv.h"
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#include "TEncCu.h"
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#include "WeightPredAnalysis.h"
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#include "TEncRateCtrl.h"
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//! \ingroup TLibEncoder
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//! \{
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class TEncTop;
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class TEncGOP;
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// ====================================================================================================================
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// Class definition
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// ====================================================================================================================
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/// slice encoder class
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class TEncSlice
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: public WeightPredAnalysis
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{
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private:
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// encoder configuration
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TEncCfg* m_pcCfg; ///< encoder configuration class
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// pictures
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TComList<TComPic*>* m_pcListPic; ///< list of pictures
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TComPicYuv* m_apcPicYuvPred; ///< prediction picture buffer
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TComPicYuv* m_apcPicYuvResi; ///< residual picture buffer
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// processing units
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TEncGOP* m_pcGOPEncoder; ///< GOP encoder
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TEncCu* m_pcCuEncoder; ///< CU encoder
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// encoder search
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TEncSearch* m_pcPredSearch; ///< encoder search class
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// coding tools
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TEncEntropy* m_pcEntropyCoder; ///< entropy encoder
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TEncSbac* m_pcSbacCoder; ///< SBAC encoder
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TEncBinCABAC* m_pcBinCABAC; ///< Bin encoder CABAC
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TComTrQuant* m_pcTrQuant; ///< transform & quantization
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// RD optimization
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TComRdCost* m_pcRdCost; ///< RD cost computation
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TEncSbac*** m_pppcRDSbacCoder; ///< storage for SBAC-based RD optimization
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TEncSbac* m_pcRDGoOnSbacCoder; ///< go-on SBAC encoder
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UInt64 m_uiPicTotalBits; ///< total bits for the picture
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UInt64 m_uiPicDist; ///< total distortion for the picture
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Double m_dPicRdCost; ///< picture-level RD cost
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Double* m_pdRdPicLambda; ///< array of lambda candidates
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Double* m_pdRdPicQp; ///< array of picture QP candidates (double-type for lambda)
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Int* m_piRdPicQp; ///< array of picture QP candidates (Int-type)
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TEncRateCtrl* m_pcRateCtrl; ///< Rate control manager
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UInt m_uiSliceIdx;
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TEncSbac m_lastSliceSegmentEndContextState; ///< context storage for state at the end of the previous slice-segment (used for dependent slices only).
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TEncSbac m_entropyCodingSyncContextState; ///< context storate for state of contexts at the wavefront/WPP/entropy-coding-sync second CTU of tile-row
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Void setUpLambda(TComSlice* slice, const Double dLambda, Int iQP);
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Void calculateBoundingCtuTsAddrForSlice(UInt &startCtuTSAddrSlice, UInt &boundingCtuTSAddrSlice, Bool &haveReachedTileBoundary, TComPic* pcPic, const Bool encodingSlice, const Int sliceMode, const Int sliceArgument, const UInt uiSliceCurEndCtuTSAddr);
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public:
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TEncSlice();
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virtual ~TEncSlice();
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Void create ( Int iWidth, Int iHeight, ChromaFormat chromaFormat, UInt iMaxCUWidth, UInt iMaxCUHeight, UChar uhTotalDepth );
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Void destroy ();
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Void init ( TEncTop* pcEncTop );
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/// preparation of slice encoding (reference marking, QP and lambda)
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Void initEncSlice ( TComPic* pcPic, Int pocLast, Int pocCurr, Int iNumPicRcvd,
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Int iGOPid, TComSlice*& rpcSlice, TComSPS* pSPS, TComPPS *pPPS, Bool isField );
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Void resetQP ( TComPic* pic, Int sliceQP, Double lambda );
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// compress and encode slice
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Void precompressSlice ( TComPic* pcPic ); ///< precompress slice for multi-loop opt.
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Void compressSlice ( TComPic* pcPic ); ///< analysis stage of slice
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Void calCostSliceI ( TComPic* pcPic );
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Void encodeSlice ( TComPic* pcPic, TComOutputBitstream* pcSubstreams, UInt &numBinsCoded );
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// misc. functions
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Void setSearchRange ( TComSlice* pcSlice ); ///< set ME range adaptively
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TEncCu* getCUEncoder() { return m_pcCuEncoder; } ///< CU encoder
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Void xDetermineStartAndBoundingCtuTsAddr ( UInt& startCtuTsAddr, UInt& boundingCtuTsAddr, TComPic* pcPic, const Bool encodingSlice );
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UInt getSliceIdx() { return m_uiSliceIdx; }
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Void setSliceIdx(UInt i) { m_uiSliceIdx = i; }
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private:
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Double xGetQPValueAccordingToLambda ( Double lambda );
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};
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//! \}
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#endif // __TENCSLICE__
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