/*!
 * \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_t		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_t	bLumaWeightFlag;
    bool_t	bChromaWeightFlag;
  } sPredList[LIST_A];
} SPredWeightTabSyn;

/* 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_t		bNoOutputOfPriorPicsFlag;
  bool_t		bLongTermRefFlag;
  bool_t		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_t		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;

  /*********************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;
  ESliceType	eSliceType;
  bool_t		bNumRefIdxActiveOverrideFlag;
  bool_t		bFieldPicFlag;		//not supported in base profile
  bool_t		bBottomFiledFlag;		//not supported in base profile
  uint8_t		uiPadding1Byte;
  bool_t		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	uiNumMbsInSlice;
  uint32_t	uiDisableInterLayerDeblockingFilterIdc;
  int32_t		iInterLayerSliceAlphaC0Offset;
  int32_t		iInterLayerSliceBetaOffset;

  //SPosOffset sScaledRefLayer;
  int32_t		iScaledRefLayerPicWidthInSampleLuma;
  int32_t		iScaledRefLayerPicHeightInSampleLuma;

  SRefBasePicMarking	sRefBasePicMarking;
  bool_t		bBasePredWeightTableFlag;
  bool_t		bStoreRefBasePicFlag;
  bool_t		bConstrainedIntraResamplingFlag;
  bool_t		bSliceSkipFlag;

  bool_t		bAdaptiveBaseModeFlag;
  bool_t		bDefaultBaseModeFlag;
  bool_t		bAdaptiveMotionPredFlag;
  bool_t		bDefaultMotionPredFlag;
  bool_t		bAdaptiveResidualPredFlag;
  bool_t		bDefaultResidualPredFlag;
  bool_t		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_t		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];
} SSlice, *PSlice;

} // namespace WelsDec

#endif//WELS_SLICE_H__