ref: c0ef1bf013073f96284fa72c4538eda121137c5c
dir: /codec/decoder/core/inc/slice.h/
/*! * \copy * Copyright (c) 2013, Cisco Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * */ //wels_slice.h #ifndef WELS_SLICE_H__ #define WELS_SLICE_H__ #include "typedefs.h" #include "wels_const.h" #include "wels_common_basis.h" #include "picture.h" #include "parameter_sets.h" namespace WelsDec { /* * Reference picture list reordering syntax, refer to page 64 in JVT X201wcm */ typedef struct TagRefPicListReorderSyntax { struct { uint32_t uiAbsDiffPicNumMinus1; uint16_t uiLongTermPicNum; uint16_t uiReorderingOfPicNumsIdc; } sReorderingSyn[LIST_A][MAX_REF_PIC_COUNT]; bool bRefPicListReorderingFlag[LIST_A]; } SRefPicListReorderSyn, *PRefPicListReorderSyn; /* * Prediction weight table syntax, refer to page 65 in JVT X201wcm */ typedef struct TagPredWeightTabSyntax { uint32_t uiLumaLog2WeightDenom; uint32_t uiChromaLog2WeightDenom; struct { int32_t iLumaWeight[MAX_REF_PIC_COUNT]; int32_t iLumaOffset[MAX_REF_PIC_COUNT]; int32_t iChromaWeight[MAX_REF_PIC_COUNT][2]; int32_t iChromaOffset[MAX_REF_PIC_COUNT][2]; bool bLumaWeightFlag; bool bChromaWeightFlag; } sPredList[LIST_A]; } SPredWeightTabSyn,*PPredWeightTabSyn; /* Decoded reference picture marking syntax, refer to Page 66 in JVT X201wcm */ typedef struct TagRefPicMarking { struct { uint32_t uiMmcoType; int32_t iShortFrameNum; int32_t iDiffOfPicNum; uint32_t uiLongTermPicNum; int32_t iLongTermFrameIdx; int32_t iMaxLongTermFrameIdx; } sMmcoRef[MAX_MMCO_COUNT]; bool bNoOutputOfPriorPicsFlag; bool bLongTermRefFlag; bool bAdaptiveRefPicMarkingModeFlag; } SRefPicMarking, *PRefPicMarking; /* Decode reference base picture marking syntax in Page 396 of JVT X201wcm */ typedef struct TagRefBasePicMarkingSyn { struct { uint32_t uiMmcoType; int32_t iShortFrameNum; uint32_t uiDiffOfPicNums; uint32_t uiLongTermPicNum; //should uint32_t, cover larger range of iFrameNum. } mmco_base[MAX_MMCO_COUNT]; // MAX_REF_PIC for reference picture based on frame bool bAdaptiveRefBasePicMarkingModeFlag; } SRefBasePicMarking, *PRefBasePicMarking; /* Header of slice syntax elements, refer to Page 63 in JVT X201wcm */ typedef struct TagSliceHeaders { /*****************************slice header syntax and generated****************************/ int32_t iFirstMbInSlice; int32_t iFrameNum; int32_t iPicOrderCntLsb; int32_t iDeltaPicOrderCntBottom; int32_t iDeltaPicOrderCnt[2]; int32_t iRedundantPicCnt; int32_t uiRefCount[LIST_A]; int32_t iSliceQpDelta; //no use for iSliceQp is used directly int32_t iSliceQp; int32_t iSliceQsDelta; // For SP/SI slices uint32_t uiDisableDeblockingFilterIdc; int32_t iSliceAlphaC0Offset; int32_t iSliceBetaOffset; int32_t iSliceGroupChangeCycle; PSps pSps; PPps pPps; int32_t iSpsId; int32_t iPpsId; bool bIdrFlag; /*********************got from other layer for efficency if possible*********************/ SRefPicListReorderSyn pRefPicListReordering; // Reference picture list reordering syntaxs SPredWeightTabSyn sPredWeightTable; int32_t iCabacInitIdc; int32_t iMbWidth; //from? int32_t iMbHeight; //from? SRefPicMarking sRefMarking; // Decoded reference picture marking syntaxs uint16_t uiIdrPicId; EWelsSliceType eSliceType; bool bNumRefIdxActiveOverrideFlag; bool bFieldPicFlag; //not supported in base profile bool bBottomFiledFlag; //not supported in base profile uint8_t uiPadding1Byte; bool bSpForSwitchFlag; // For SP/SI slices int16_t iPadding2Bytes; } SSliceHeader, *PSliceHeader; /* Slice header in scalable extension syntax, refer to Page 394 in JVT X201wcm */ typedef struct TagSliceHeaderExt { SSliceHeader sSliceHeader; PSubsetSps pSubsetSps; uint32_t uiDisableInterLayerDeblockingFilterIdc; int32_t iInterLayerSliceAlphaC0Offset; int32_t iInterLayerSliceBetaOffset; //SPosOffset sScaledRefLayer; int32_t iScaledRefLayerPicWidthInSampleLuma; int32_t iScaledRefLayerPicHeightInSampleLuma; SRefBasePicMarking sRefBasePicMarking; bool bBasePredWeightTableFlag; bool bStoreRefBasePicFlag; bool bConstrainedIntraResamplingFlag; bool bSliceSkipFlag; bool bAdaptiveBaseModeFlag; bool bDefaultBaseModeFlag; bool bAdaptiveMotionPredFlag; bool bDefaultMotionPredFlag; bool bAdaptiveResidualPredFlag; bool bDefaultResidualPredFlag; bool bTCoeffLevelPredFlag; uint8_t uiRefLayerChromaPhaseXPlus1Flag; uint8_t uiRefLayerChromaPhaseYPlus1; uint8_t uiRefLayerDqId; uint8_t uiScanIdxStart; uint8_t uiScanIdxEnd; } SSliceHeaderExt, *PSliceHeaderExt; typedef struct TagSlice { /*******************************slice_header****************************/ SSliceHeaderExt sSliceHeaderExt; /*******************************use for future****************************/ // for Macroblock coding within slice int32_t iLastMbQp; // stored qp for last mb coded, maybe more efficient for mb skip detection etc. /*******************************slice_data****************************/ /*slice_data_ext()*/ int32_t iMbSkipRun; int32_t iTotalMbInCurSlice; //record the total number of MB in current slice. /*slice_data_ext() generate*/ /*******************************misc use****************************/ bool bSliceHeaderExtFlag; // Indicate which slice header is used, avc or ext? /*************got from other layer for effiency if possible***************/ /*from lower layer: slice header*/ uint8_t eSliceType; uint8_t uiPadding[2]; int32_t iLastDeltaQp; } SSlice, *PSlice; } // namespace WelsDec #endif//WELS_SLICE_H__