/*! * \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. * */#include "SceneChangeDetection.h"#include "cpu.h"WELSVP_NAMESPACE_BEGIN#define HIGH_MOTION_BLOCK_THRESHOLD 320#define SCENE_CHANGE_MOTION_RATIO 0.85f///////////////////////////////////////////////////////////////////////////////////////////////////////////////CSceneChangeDetection::CSceneChangeDetection (int32_t iCpuFlag) { m_iCpuFlag = iCpuFlag; m_eMethod = METHOD_SCENE_CHANGE_DETECTION; m_pfSad = NULL; WelsMemset (&m_sSceneChangeParam, 0, sizeof (m_sSceneChangeParam)); InitSadFuncs (m_pfSad, m_iCpuFlag);}CSceneChangeDetection::~CSceneChangeDetection() {}EResult CSceneChangeDetection::Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pRefPixMap) { EResult eReturn = RET_INVALIDPARAM; int32_t iWidth = pSrcPixMap->sRect.iRectWidth; int32_t iHeight = pSrcPixMap->sRect.iRectHeight; int32_t iBlock8x8Width = iWidth >> 3; int32_t iBlock8x8Height = iHeight >> 3; int32_t iBlock8x8Num = iBlock8x8Width * iBlock8x8Height; int32_t iSceneChangeThreshold = WelsStaticCast (int32_t, SCENE_CHANGE_MOTION_RATIO * iBlock8x8Num + 0.5f + PESN); int32_t iBlockSad = 0; int32_t iMotionBlockNum = 0; uint8_t* pRefY = NULL, *pCurY = NULL; int32_t iRefStride = 0, iCurStride = 0; int32_t iRefRowStride = 0, iCurRowStride = 0; uint8_t* pRefTmp = NULL, *pCurTmp = NULL; pRefY = (uint8_t*)pRefPixMap->pPixel[0]; pCurY = (uint8_t*)pSrcPixMap->pPixel[0]; iRefStride = pRefPixMap->iStride[0]; iCurStride = pSrcPixMap->iStride[0]; iRefRowStride = pRefPixMap->iStride[0] << 3; iCurRowStride = pSrcPixMap->iStride[0] << 3; m_sSceneChangeParam.bSceneChangeFlag = 0; for (int32_t j = 0; j < iBlock8x8Height; j ++) { pRefTmp = pRefY; pCurTmp = pCurY; for (int32_t i = 0; i < iBlock8x8Width; i++) { iBlockSad = m_pfSad (pRefTmp, iRefStride, pCurTmp, iCurStride); iMotionBlockNum += (iBlockSad > HIGH_MOTION_BLOCK_THRESHOLD); pRefTmp += 8; pCurTmp += 8; } pRefY += iRefRowStride; pCurY += iCurRowStride; } if (iMotionBlockNum >= iSceneChangeThreshold) { m_sSceneChangeParam.bSceneChangeFlag = 1; } eReturn = RET_SUCCESS; return eReturn;}EResult CSceneChangeDetection::Get (int32_t iType, void* pParam) { if (pParam == NULL) { return RET_INVALIDPARAM; } * (SSceneChangeResult*)pParam = m_sSceneChangeParam; return RET_SUCCESS;}///////////////////////////////////////////////////////////////////////////////////////////////void CSceneChangeDetection::InitSadFuncs (SadFuncPtr& pfSad, int32_t iCpuFlag) { pfSad = WelsSampleSad8x8_c;#ifdef X86_ASM if (iCpuFlag & WELS_CPU_SSE2) { pfSad = WelsSampleSad8x8_sse21; }#endif}WELSVP_NAMESPACE_END
/*!
* \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.
*
*/
#include "SceneChangeDetection.h"
#include "cpu.h"
WELSVP_NAMESPACE_BEGIN
#define HIGH_MOTION_BLOCK_THRESHOLD 320
#define SCENE_CHANGE_MOTION_RATIO 0.85f
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
CSceneChangeDetection::CSceneChangeDetection (int32_t iCpuFlag) {
m_iCpuFlag = iCpuFlag;
m_eMethod = METHOD_SCENE_CHANGE_DETECTION;
m_pfSad = NULL;
WelsMemset (&m_sSceneChangeParam, 0, sizeof (m_sSceneChangeParam));
InitSadFuncs (m_pfSad, m_iCpuFlag);
}
CSceneChangeDetection::~CSceneChangeDetection() {
}
EResult CSceneChangeDetection::Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {
EResult eReturn = RET_INVALIDPARAM;
int32_t iWidth = pSrcPixMap->sRect.iRectWidth;
int32_t iHeight = pSrcPixMap->sRect.iRectHeight;
int32_t iBlock8x8Width = iWidth >> 3;
int32_t iBlock8x8Height = iHeight >> 3;
int32_t iBlock8x8Num = iBlock8x8Width * iBlock8x8Height;
int32_t iSceneChangeThreshold = WelsStaticCast (int32_t, SCENE_CHANGE_MOTION_RATIO * iBlock8x8Num + 0.5f + PESN);
int32_t iBlockSad = 0;
int32_t iMotionBlockNum = 0;
uint8_t* pRefY = NULL, *pCurY = NULL;
int32_t iRefStride = 0, iCurStride = 0;
int32_t iRefRowStride = 0, iCurRowStride = 0;
uint8_t* pRefTmp = NULL, *pCurTmp = NULL;
pRefY = (uint8_t*)pRefPixMap->pPixel[0];
pCurY = (uint8_t*)pSrcPixMap->pPixel[0];
iRefStride = pRefPixMap->iStride[0];
iCurStride = pSrcPixMap->iStride[0];
iRefRowStride = pRefPixMap->iStride[0] << 3;
iCurRowStride = pSrcPixMap->iStride[0] << 3;
m_sSceneChangeParam.bSceneChangeFlag = 0;
for (int32_t j = 0; j < iBlock8x8Height; j ++) {
pRefTmp = pRefY;
pCurTmp = pCurY;
for (int32_t i = 0; i < iBlock8x8Width; i++) {
iBlockSad = m_pfSad (pRefTmp, iRefStride, pCurTmp, iCurStride);
iMotionBlockNum += (iBlockSad > HIGH_MOTION_BLOCK_THRESHOLD);
pRefTmp += 8;
pCurTmp += 8;
}
pRefY += iRefRowStride;
pCurY += iCurRowStride;
}
if (iMotionBlockNum >= iSceneChangeThreshold) {
m_sSceneChangeParam.bSceneChangeFlag = 1;
}
eReturn = RET_SUCCESS;
return eReturn;
}
EResult CSceneChangeDetection::Get (int32_t iType, void* pParam) {
if (pParam == NULL) {
return RET_INVALIDPARAM;
}
* (SSceneChangeResult*)pParam = m_sSceneChangeParam;
return RET_SUCCESS;
}
///////////////////////////////////////////////////////////////////////////////////////////////
void CSceneChangeDetection::InitSadFuncs (SadFuncPtr& pfSad, int32_t iCpuFlag) {
pfSad = WelsSampleSad8x8_c;
#ifdef X86_ASM
if (iCpuFlag & WELS_CPU_SSE2) {
pfSad = WelsSampleSad8x8_sse21;
}
#endif
}
WELSVP_NAMESPACE_END