ref: b4e1c41bcac77e7b60d80c7ad5ea21196e2fce9f
dir: /processing/src/backgounddetection/BackgroundDetection.h/
/*!
* \copy
* Copyright (c) 2011-2013, 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.
*
* \file : BackgroundDetection.h
*
* \brief : background detection class of wels video processor class
*
* \date : 2011/03/17
*
* \description : 1. rewrite the package code of background detection class
*
*/
#ifndef _WELSVP_BACKGROUNDDETECTION_H
#define _WELSVP_BACKGROUNDDETECTION_H
#include "../common/util.h"
#include "../common/memory.h"
#include "../common/WelsFrameWork.h"
#include "../../interface/IWelsVP.h"
WELSVP_NAMESPACE_BEGIN
typedef struct
{
int32_t iBackgroundFlag;
int32_t iSAD;
int32_t iSD;
int32_t iMAD;
int32_t iMinSubMad;
int32_t iMaxDiffSubSd;
} SBackgroundOU;
class CBackgroundDetection : public IStrategy
{
public:
CBackgroundDetection(int32_t iCpuFlag);
~CBackgroundDetection();
EResult Process(int32_t iType, SPixMap *pSrc, SPixMap *pRef);
EResult Set (int32_t iType, void *pParam);
private:
struct vBGDParam
{
uint8_t *pCur[3];
uint8_t *pRef[3];
int32_t iBgdWidth;
int32_t iBgdHeight;
int32_t iStride[3];
SBackgroundOU *pOU_array;
int8_t *pBackgroundMbFlag;
SVAACalcResult *pCalcRes;
}m_BgdParam;
int32_t m_iLargestFrameSize;
private:
inline SBackgroundOU* AllocateOUArrayMemory(int32_t iWidth, int32_t iHeight);
inline void FreeOUArrayMemory();
inline int32_t CalculateAsdChromaEdge( uint8_t *pOriRef, uint8_t *pOriCur, int32_t iStride );
inline bool_t ForegroundDilation23Luma(SBackgroundOU *pBackgroundOU, SBackgroundOU *pOUNeighbours[]);//Foreground_Dilation_2_3_Luma
inline bool_t ForegroundDilation23Chroma(int8_t iNeighbourForegroundFlags, int32_t iStartSamplePos, int32_t iPicStrideUV, vBGDParam *pBgdParam);//Foreground_Dilation_2_3_Chroma
inline void ForegroundDilation(SBackgroundOU *pBackgroundOU, SBackgroundOU *pOUNeighbours[], vBGDParam *pBgdParam, int32_t iChromaSampleStartPos);
inline void BackgroundErosion(SBackgroundOU *pBackgroundOU, SBackgroundOU *pOUNeighbours[]);
inline void SetBackgroundMbFlag(int8_t *pBackgroundMbFlag,int32_t iPicWidthInMb, int32_t iBackgroundMbFlag);
inline void UpperOUForegroundCheck(SBackgroundOU *pCurOU, int8_t *pBackgroundMbFlag, int32_t iPicWidthInOU, int32_t iPicWidthInMb);
void GetOUParameters( SVAACalcResult *sVaaCalcInfo, int32_t iMbIndex, int32_t iMbWidth, SBackgroundOU* pBackgroundOU);
void ForegroundBackgroundDivision(vBGDParam *pBgdParam);
void ForegroundDilationAndBackgroundErosion(vBGDParam *pBgdParam);
void BackgroundDetection( vBGDParam *pBgdParam );
};
WELSVP_NAMESPACE_END
#endif