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/*!
 ************************************************************************
 * \file  erc_do.h
 *
 * \brief
 *      Header for the I & P frame error concealment common functions
 *
 * \author
 *      - Viktor Varsa                     <viktor.varsa@nokia.com>
 *      - Ye-Kui Wang                   <wangy@cs.tut.fi>
 *
 ************************************************************************
 */

#ifndef _ERC_DO_H_
#define _ERC_DO_H_


#include "erc_api.h"

void ercPixConcealIMB(byte *currFrame, int row, int column, int predBlocks[], int frameWidth, int mbWidthInBlocks);

int ercCollect8PredBlocks( int predBlocks[], int currRow, int currColumn, int *condition, 
                          int maxRow, int maxColumn, int step, byte fNoCornerNeigh );
int ercCollectColumnBlocks( int predBlocks[], int currRow, int currColumn, int *condition, int maxRow, int maxColumn, int step );

static int concealByCopy(frame *recfr, int currMBNum, 
                         objectBuffer_t *object_list, int32 picSizeX);

static int concealByTrial(frame *recfr, byte *predMB, 
                          int currMBNum, objectBuffer_t *object_list, int predBlocks[], 
                          int32 picSizeX, int32 picSizeY, int *yCondition);
 
static int edgeDistortion (int predBlocks[], int currYBlockNum, byte *predMB, 
                           byte *recY, int32 picSizeX, int32 regionSize);

static void copyBetweenFrames (frame *recfr, 
                               int currYBlockNum, int32 picSizeX, int32 regionSize);

static void buildPredRegionYUV(struct img_par *img, int32 *mvPred, int x, int y, byte *predMB);

static void copyPredMB (int currYBlockNum, byte *predMB, frame *recfr, 
                        int32 picSizeX, int32 regionSize);

#define isSplitted(object_list,currMBNum) \
    ((object_list+((currMBNum)<<2))->regionMode >= REGMODE_SPLITTED)

/* this can be used as isBlock(...,INTRA) or isBlock(...,INTER_COPY) */
#define isBlock(object_list,currMBNum,comp,regMode) \
    (isSplitted(object_list,currMBNum) ? \
     ((object_list+((currMBNum)<<2)+(comp))->regionMode == REGMODE_##regMode##_8x8) : \
     ((object_list+((currMBNum)<<2))->regionMode == REGMODE_##regMode))

/* this can be used as getParam(...,mv) or getParam(...,xMin) or getParam(...,yMin) */
#define getParam(object_list,currMBNum,comp,param) \
    (isSplitted(object_list,currMBNum) ? \
     ((object_list+((currMBNum)<<2)+(comp))->##param) : \
     ((object_list+((currMBNum)<<2))->##param))

#endif