/work/openh264/codec/processing/src/scenechangedetection/SceneChangeDetection.h

Source
/*!
 * \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         :  SceneChangeDetection.h
 *
 * \brief        :  scene change detection class of wels video processor class
 *
 * \date         :  2011/03/14
 *
 * \description  :  1. rewrite the package code of scene change detection class
 *
 *************************************************************************************
 */

#ifndef WELSVP_SCENECHANGEDETECTION_H
#define WELSVP_SCENECHANGEDETECTION_H

#include "util.h"
#include "memory.h"
#include "cpu.h"
#include "WelsFrameWork.h"
#include "IWelsVP.h"
#include "common.h"

#define HIGH_MOTION_BLOCK_THRESHOLD 320
#define SCENE_CHANGE_MOTION_RATIO_LARGE_VIDEO   0.85f
#define SCENE_CHANGE_MOTION_RATIO_MEDIUM  0.50f
#define SCENE_CHANGE_MOTION_RATIO_LARGE_SCREEN    0.80f

WELSVP_NAMESPACE_BEGIN

typedef struct {
  int32_t iWidth;
  int32_t iHeight;
  int32_t iBlock8x8Width;
  int32_t iBlock8x8Height;
  uint8_t* pRefY;
  uint8_t* pCurY;
  int32_t iRefStride;
  int32_t iCurStride;
  uint8_t* pStaticBlockIdc;
} SLocalParam;

class CSceneChangeDetectorVideo {
 public:
  CSceneChangeDetectorVideo (SSceneChangeResult& sParam, int32_t iCpuFlag) : m_sParam (sParam) {
    m_pfSad = WelsSampleSad8x8_c;
#ifdef X86_ASM
    if (iCpuFlag & WELS_CPU_SSE2) {
      m_pfSad = WelsSampleSad8x8_sse21;
    }
#endif
#ifdef HAVE_NEON
    if (iCpuFlag & WELS_CPU_NEON) {
      m_pfSad = WelsProcessingSampleSad8x8_neon;
    }
#endif

#if defined(HAVE_NEON_AARCH64) && defined(__aarch64__)
    if (iCpuFlag & WELS_CPU_NEON) {
      m_pfSad = WelsProcessingSampleSad8x8_AArch64_neon;
    }
#endif

#ifdef HAVE_MMI
    if (iCpuFlag & WELS_CPU_MMI) {
      m_pfSad = WelsSampleSad8x8_mmi;
    }
#endif

#ifdef HAVE_LASX
    if (iCpuFlag & WELS_CPU_LASX) {
      m_pfSad = WelsSampleSad8x8_lasx;
    }
#endif

    m_fSceneChangeMotionRatioLarge = SCENE_CHANGE_MOTION_RATIO_LARGE_VIDEO;
    m_fSceneChangeMotionRatioMedium = SCENE_CHANGE_MOTION_RATIO_MEDIUM;
  }
  virtual ~CSceneChangeDetectorVideo() {
  }
  void operator() (SLocalParam& sLocalParam) {
    int32_t iRefRowStride = 0, iCurRowStride = 0;
    uint8_t* pRefY = sLocalParam.pRefY;
    uint8_t* pCurY = sLocalParam.pCurY;
    uint8_t* pRefTmp = NULL, *pCurTmp = NULL;

    iRefRowStride  = sLocalParam.iRefStride << 3;
    iCurRowStride  = sLocalParam.iCurStride << 3;

    for (int32_t j = 0; j < sLocalParam.iBlock8x8Height; j++) {
      pRefTmp = pRefY;
      pCurTmp = pCurY;
      for (int32_t i = 0; i < sLocalParam.iBlock8x8Width; i++) {
        int32_t iSad = m_pfSad (pCurTmp, sLocalParam.iCurStride, pRefTmp, sLocalParam.iRefStride);
        m_sParam.iMotionBlockNum += iSad > HIGH_MOTION_BLOCK_THRESHOLD;
        pRefTmp += 8;
        pCurTmp += 8;
      }
      pRefY += iRefRowStride;
      pCurY += iCurRowStride;
    }
  }
  float  GetSceneChangeMotionRatioLarge() const {
    return m_fSceneChangeMotionRatioLarge;
  }
  float  GetSceneChangeMotionRatioMedium() const {
    return m_fSceneChangeMotionRatioMedium;
  }
 protected:
  SadFuncPtr m_pfSad;
  SSceneChangeResult& m_sParam;
  float    m_fSceneChangeMotionRatioLarge;
  float    m_fSceneChangeMotionRatioMedium;
};

class CSceneChangeDetectorScreen : public CSceneChangeDetectorVideo {
 public:
  CSceneChangeDetectorScreen (SSceneChangeResult& sParam, int32_t iCpuFlag) : CSceneChangeDetectorVideo (sParam,
        iCpuFlag) {
    m_fSceneChangeMotionRatioLarge = SCENE_CHANGE_MOTION_RATIO_LARGE_SCREEN;
    m_fSceneChangeMotionRatioMedium = SCENE_CHANGE_MOTION_RATIO_MEDIUM;
  }
  virtual ~CSceneChangeDetectorScreen() {
  }
  void operator() (SLocalParam& sLocalParam) {
    bool bScrollDetectFlag = m_sParam.sScrollResult.bScrollDetectFlag;
    int32_t iScrollMvX = m_sParam.sScrollResult.iScrollMvX;
    int32_t iScrollMvY = m_sParam.sScrollResult.iScrollMvY;

    int32_t iRefRowStride = 0, iCurRowStride = 0;
    uint8_t* pRefY = sLocalParam.pRefY;
    uint8_t* pCurY = sLocalParam.pCurY;
    uint8_t* pRefTmp = NULL, *pCurTmp = NULL;
    int32_t iWidth = sLocalParam.iWidth;
    int32_t iHeight = sLocalParam.iHeight;

    iRefRowStride  = sLocalParam.iRefStride << 3;
    iCurRowStride  = sLocalParam.iCurStride << 3;

    for (int32_t j = 0; j < sLocalParam.iBlock8x8Height; j++) {
      pRefTmp = pRefY;
      pCurTmp = pCurY;
      for (int32_t i = 0; i < sLocalParam.iBlock8x8Width; i++) {
        int32_t iBlockPointX = i << 3;
        int32_t iBlockPointY = j << 3;
        uint8_t uiBlockIdcTmp = NO_STATIC;
        int32_t iSad = m_pfSad (pCurTmp, sLocalParam.iCurStride, pRefTmp, sLocalParam.iRefStride);
        if (iSad == 0) {
          uiBlockIdcTmp = COLLOCATED_STATIC;
        } else if (bScrollDetectFlag && (!iScrollMvX || !iScrollMvY) && (iBlockPointX + iScrollMvX >= 0)
                   && (iBlockPointX + iScrollMvX <= iWidth - 8) &&
                   (iBlockPointY + iScrollMvY >= 0) && (iBlockPointY + iScrollMvY <= iHeight - 8)) {
          uint8_t* pRefTmpScroll = pRefTmp + iScrollMvY * sLocalParam.iRefStride + iScrollMvX;
          int32_t iSadScroll = m_pfSad (pCurTmp, sLocalParam.iCurStride, pRefTmpScroll, sLocalParam.iRefStride);

          if (iSadScroll == 0) {
            uiBlockIdcTmp = SCROLLED_STATIC;
          } else {
            m_sParam.iFrameComplexity += iSad;
            m_sParam.iMotionBlockNum += iSad > HIGH_MOTION_BLOCK_THRESHOLD;
          }
        } else {
          m_sParam.iFrameComplexity += iSad;
          m_sParam.iMotionBlockNum += iSad > HIGH_MOTION_BLOCK_THRESHOLD;
        }
        * (sLocalParam.pStaticBlockIdc) ++ = uiBlockIdcTmp;
        pRefTmp += 8;
        pCurTmp += 8;
      }
      pRefY += iRefRowStride;
      pCurY += iCurRowStride;
    }
  }
};

template<typename T>
class CSceneChangeDetection : public IStrategy {
 public:
  CSceneChangeDetection (EMethods eMethod, int32_t iCpuFlag): m_cDetector (m_sSceneChangeParam, iCpuFlag) {
    m_eMethod   = eMethod;
    WelsMemset (&m_sSceneChangeParam, 0, sizeof (m_sSceneChangeParam));
  }

  ~CSceneChangeDetection() {
  }

  EResult Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {
    EResult eReturn = RET_INVALIDPARAM;

    m_sLocalParam.iWidth = pSrcPixMap->sRect.iRectWidth;
    m_sLocalParam.iHeight = pSrcPixMap->sRect.iRectHeight;
    m_sLocalParam.iBlock8x8Width = m_sLocalParam.iWidth >> 3;
    m_sLocalParam.iBlock8x8Height = m_sLocalParam.iHeight >> 3;
    m_sLocalParam.pRefY = (uint8_t*)pRefPixMap->pPixel[0];
    m_sLocalParam.pCurY = (uint8_t*)pSrcPixMap->pPixel[0];
    m_sLocalParam.iRefStride = pRefPixMap->iStride[0];
    m_sLocalParam.iCurStride = pSrcPixMap->iStride[0];
    m_sLocalParam.pStaticBlockIdc = m_sSceneChangeParam.pStaticBlockIdc;

    int32_t iBlock8x8Num = m_sLocalParam.iBlock8x8Width * m_sLocalParam.iBlock8x8Height;
    int32_t iSceneChangeThresholdLarge = WelsStaticCast (int32_t,
                                         m_cDetector.GetSceneChangeMotionRatioLarge() * iBlock8x8Num + 0.5f + PESN);
    int32_t iSceneChangeThresholdMedium = WelsStaticCast (int32_t,
                                          m_cDetector.GetSceneChangeMotionRatioMedium() * iBlock8x8Num + 0.5f + PESN);

    m_sSceneChangeParam.iMotionBlockNum = 0;
    m_sSceneChangeParam.iFrameComplexity = 0;
    m_sSceneChangeParam.eSceneChangeIdc = SIMILAR_SCENE;

    m_cDetector (m_sLocalParam);

    if (m_sSceneChangeParam.iMotionBlockNum >= iSceneChangeThresholdLarge) {
      m_sSceneChangeParam.eSceneChangeIdc = LARGE_CHANGED_SCENE;
    } else if (m_sSceneChangeParam.iMotionBlockNum >= iSceneChangeThresholdMedium) {
      m_sSceneChangeParam.eSceneChangeIdc = MEDIUM_CHANGED_SCENE;
    }

    eReturn = RET_SUCCESS;

    return eReturn;
  }

  EResult Get (int32_t iType, void* pParam) {
    if (pParam == NULL) {
      return RET_INVALIDPARAM;
    }
    * (SSceneChangeResult*)pParam = m_sSceneChangeParam;
    return RET_SUCCESS;
  }

  EResult Set (int32_t iType, void* pParam) {
    if (pParam == NULL) {
      return RET_INVALIDPARAM;
    }
    m_sSceneChangeParam = * (SSceneChangeResult*)pParam;
    return RET_SUCCESS;
  }
 private:
  SSceneChangeResult m_sSceneChangeParam;
  SLocalParam m_sLocalParam;
  T          m_cDetector;
};

IStrategy* BuildSceneChangeDetection (EMethods eMethod, int32_t iCpuFlag);

WELSVP_NAMESPACE_END

#endif

Coverage Report

Created: 2026-05-30 06:10

Line	Count	Source
1		/*!
2		* \copy
3		* Copyright (c) 2011-2013, Cisco Systems
4		* All rights reserved.
5		*
6		* Redistribution and use in source and binary forms, with or without
7		* modification, are permitted provided that the following conditions
8		* are met:
9		*
10		* * Redistributions of source code must retain the above copyright
11		* notice, this list of conditions and the following disclaimer.
12		*
13		* * Redistributions in binary form must reproduce the above copyright
14		* notice, this list of conditions and the following disclaimer in
15		* the documentation and/or other materials provided with the
16		* distribution.
17		*
18		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19		* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20		* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21		* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22		* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23		* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24		* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25		* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26		* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27		* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28		* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29		* POSSIBILITY OF SUCH DAMAGE.
30		*
31		* \file : SceneChangeDetection.h
32		*
33		* \brief : scene change detection class of wels video processor class
34		*
35		* \date : 2011/03/14
36		*
37		* \description : 1. rewrite the package code of scene change detection class
38		*
39		*************************************************************************************
40		*/
41
42		#ifndef WELSVP_SCENECHANGEDETECTION_H
43		#define WELSVP_SCENECHANGEDETECTION_H
44
45		#include "util.h"
46		#include "memory.h"
47		#include "cpu.h"
48		#include "WelsFrameWork.h"
49		#include "IWelsVP.h"
50		#include "common.h"
51
52	0	#define HIGH_MOTION_BLOCK_THRESHOLD 320
53	0	#define SCENE_CHANGE_MOTION_RATIO_LARGE_VIDEO 0.85f
54	0	#define SCENE_CHANGE_MOTION_RATIO_MEDIUM 0.50f
55	0	#define SCENE_CHANGE_MOTION_RATIO_LARGE_SCREEN 0.80f
56
57		WELSVP_NAMESPACE_BEGIN
58
59		typedef struct {
60		int32_t iWidth;
61		int32_t iHeight;
62		int32_t iBlock8x8Width;
63		int32_t iBlock8x8Height;
64		uint8_t* pRefY;
65		uint8_t* pCurY;
66		int32_t iRefStride;
67		int32_t iCurStride;
68		uint8_t* pStaticBlockIdc;
69		} SLocalParam;
70
71		class CSceneChangeDetectorVideo {
72		public:
73	0	CSceneChangeDetectorVideo (SSceneChangeResult& sParam, int32_t iCpuFlag) : m_sParam (sParam) {
74	0	m_pfSad = WelsSampleSad8x8_c;
75		#ifdef X86_ASM
76		if (iCpuFlag & WELS_CPU_SSE2) {
77		m_pfSad = WelsSampleSad8x8_sse21;
78		}
79		#endif
80		#ifdef HAVE_NEON
81		if (iCpuFlag & WELS_CPU_NEON) {
82		m_pfSad = WelsProcessingSampleSad8x8_neon;
83		}
84		#endif
85
86		#if defined(HAVE_NEON_AARCH64) && defined(__aarch64__)
87		if (iCpuFlag & WELS_CPU_NEON) {
88		m_pfSad = WelsProcessingSampleSad8x8_AArch64_neon;
89		}
90		#endif
91
92		#ifdef HAVE_MMI
93		if (iCpuFlag & WELS_CPU_MMI) {
94		m_pfSad = WelsSampleSad8x8_mmi;
95		}
96		#endif
97
98		#ifdef HAVE_LASX
99		if (iCpuFlag & WELS_CPU_LASX) {
100		m_pfSad = WelsSampleSad8x8_lasx;
101		}
102		#endif
103
104	0	m_fSceneChangeMotionRatioLarge = SCENE_CHANGE_MOTION_RATIO_LARGE_VIDEO;
105	0	m_fSceneChangeMotionRatioMedium = SCENE_CHANGE_MOTION_RATIO_MEDIUM;
106	0	}
107	0	virtual ~CSceneChangeDetectorVideo() {
108	0	}
109	0	void operator() (SLocalParam& sLocalParam) {
110	0	int32_t iRefRowStride = 0, iCurRowStride = 0;
111	0	uint8_t* pRefY = sLocalParam.pRefY;
112	0	uint8_t* pCurY = sLocalParam.pCurY;
113	0	uint8_t* pRefTmp = NULL, *pCurTmp = NULL;
114
115	0	iRefRowStride = sLocalParam.iRefStride << 3;
116	0	iCurRowStride = sLocalParam.iCurStride << 3;
117
118	0	for (int32_t j = 0; j < sLocalParam.iBlock8x8Height; j++) {
119	0	pRefTmp = pRefY;
120	0	pCurTmp = pCurY;
121	0	for (int32_t i = 0; i < sLocalParam.iBlock8x8Width; i++) {
122	0	int32_t iSad = m_pfSad (pCurTmp, sLocalParam.iCurStride, pRefTmp, sLocalParam.iRefStride);
123	0	m_sParam.iMotionBlockNum += iSad > HIGH_MOTION_BLOCK_THRESHOLD;
124	0	pRefTmp += 8;
125	0	pCurTmp += 8;
126	0	}
127	0	pRefY += iRefRowStride;
128	0	pCurY += iCurRowStride;
129	0	}
130	0	}
131	0	float GetSceneChangeMotionRatioLarge() const {
132	0	return m_fSceneChangeMotionRatioLarge;
133	0	}
134	0	float GetSceneChangeMotionRatioMedium() const {
135	0	return m_fSceneChangeMotionRatioMedium;
136	0	}
137		protected:
138		SadFuncPtr m_pfSad;
139		SSceneChangeResult& m_sParam;
140		float m_fSceneChangeMotionRatioLarge;
141		float m_fSceneChangeMotionRatioMedium;
142		};
143
144		class CSceneChangeDetectorScreen : public CSceneChangeDetectorVideo {
145		public:
146	0	CSceneChangeDetectorScreen (SSceneChangeResult& sParam, int32_t iCpuFlag) : CSceneChangeDetectorVideo (sParam,
147	0	iCpuFlag) {
148	0	m_fSceneChangeMotionRatioLarge = SCENE_CHANGE_MOTION_RATIO_LARGE_SCREEN;
149	0	m_fSceneChangeMotionRatioMedium = SCENE_CHANGE_MOTION_RATIO_MEDIUM;
150	0	}
151	0	virtual ~CSceneChangeDetectorScreen() {
152	0	}
153	0	void operator() (SLocalParam& sLocalParam) {
154	0	bool bScrollDetectFlag = m_sParam.sScrollResult.bScrollDetectFlag;
155	0	int32_t iScrollMvX = m_sParam.sScrollResult.iScrollMvX;
156	0	int32_t iScrollMvY = m_sParam.sScrollResult.iScrollMvY;
157
158	0	int32_t iRefRowStride = 0, iCurRowStride = 0;
159	0	uint8_t* pRefY = sLocalParam.pRefY;
160	0	uint8_t* pCurY = sLocalParam.pCurY;
161	0	uint8_t* pRefTmp = NULL, *pCurTmp = NULL;
162	0	int32_t iWidth = sLocalParam.iWidth;
163	0	int32_t iHeight = sLocalParam.iHeight;
164
165	0	iRefRowStride = sLocalParam.iRefStride << 3;
166	0	iCurRowStride = sLocalParam.iCurStride << 3;
167
168	0	for (int32_t j = 0; j < sLocalParam.iBlock8x8Height; j++) {
169	0	pRefTmp = pRefY;
170	0	pCurTmp = pCurY;
171	0	for (int32_t i = 0; i < sLocalParam.iBlock8x8Width; i++) {
172	0	int32_t iBlockPointX = i << 3;
173	0	int32_t iBlockPointY = j << 3;
174	0	uint8_t uiBlockIdcTmp = NO_STATIC;
175	0	int32_t iSad = m_pfSad (pCurTmp, sLocalParam.iCurStride, pRefTmp, sLocalParam.iRefStride);
176	0	if (iSad == 0) {
177	0	uiBlockIdcTmp = COLLOCATED_STATIC;
178	0	} else if (bScrollDetectFlag && (!iScrollMvX \|\| !iScrollMvY) && (iBlockPointX + iScrollMvX >= 0)
179	0	&& (iBlockPointX + iScrollMvX <= iWidth - 8) &&
180	0	(iBlockPointY + iScrollMvY >= 0) && (iBlockPointY + iScrollMvY <= iHeight - 8)) {
181	0	uint8_t* pRefTmpScroll = pRefTmp + iScrollMvY * sLocalParam.iRefStride + iScrollMvX;
182	0	int32_t iSadScroll = m_pfSad (pCurTmp, sLocalParam.iCurStride, pRefTmpScroll, sLocalParam.iRefStride);
183
184	0	if (iSadScroll == 0) {
185	0	uiBlockIdcTmp = SCROLLED_STATIC;
186	0	} else {
187	0	m_sParam.iFrameComplexity += iSad;
188	0	m_sParam.iMotionBlockNum += iSad > HIGH_MOTION_BLOCK_THRESHOLD;
189	0	}
190	0	} else {
191	0	m_sParam.iFrameComplexity += iSad;
192	0	m_sParam.iMotionBlockNum += iSad > HIGH_MOTION_BLOCK_THRESHOLD;
193	0	}
194	0	* (sLocalParam.pStaticBlockIdc) ++ = uiBlockIdcTmp;
195	0	pRefTmp += 8;
196	0	pCurTmp += 8;
197	0	}
198	0	pRefY += iRefRowStride;
199	0	pCurY += iCurRowStride;
200	0	}
201	0	}
202		};
203
204		template<typename T>
205		class CSceneChangeDetection : public IStrategy {
206		public:
207	0	CSceneChangeDetection (EMethods eMethod, int32_t iCpuFlag): m_cDetector (m_sSceneChangeParam, iCpuFlag) {
208	0	m_eMethod = eMethod;
209	0	WelsMemset (&m_sSceneChangeParam, 0, sizeof (m_sSceneChangeParam));
210	0	} Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorVideo>::CSceneChangeDetection(EMethods, int) Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorScreen>::CSceneChangeDetection(EMethods, int)
211
212	0	~CSceneChangeDetection() {
213	0	} Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorVideo>::~CSceneChangeDetection() Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorScreen>::~CSceneChangeDetection()
214
215	0	EResult Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {
216	0	EResult eReturn = RET_INVALIDPARAM;
217
218	0	m_sLocalParam.iWidth = pSrcPixMap->sRect.iRectWidth;
219	0	m_sLocalParam.iHeight = pSrcPixMap->sRect.iRectHeight;
220	0	m_sLocalParam.iBlock8x8Width = m_sLocalParam.iWidth >> 3;
221	0	m_sLocalParam.iBlock8x8Height = m_sLocalParam.iHeight >> 3;
222	0	m_sLocalParam.pRefY = (uint8_t*)pRefPixMap->pPixel[0];
223	0	m_sLocalParam.pCurY = (uint8_t*)pSrcPixMap->pPixel[0];
224	0	m_sLocalParam.iRefStride = pRefPixMap->iStride[0];
225	0	m_sLocalParam.iCurStride = pSrcPixMap->iStride[0];
226	0	m_sLocalParam.pStaticBlockIdc = m_sSceneChangeParam.pStaticBlockIdc;
227
228	0	int32_t iBlock8x8Num = m_sLocalParam.iBlock8x8Width * m_sLocalParam.iBlock8x8Height;
229	0	int32_t iSceneChangeThresholdLarge = WelsStaticCast (int32_t,
230	0	m_cDetector.GetSceneChangeMotionRatioLarge() * iBlock8x8Num + 0.5f + PESN);
231	0	int32_t iSceneChangeThresholdMedium = WelsStaticCast (int32_t,
232	0	m_cDetector.GetSceneChangeMotionRatioMedium() * iBlock8x8Num + 0.5f + PESN);
233
234	0	m_sSceneChangeParam.iMotionBlockNum = 0;
235	0	m_sSceneChangeParam.iFrameComplexity = 0;
236	0	m_sSceneChangeParam.eSceneChangeIdc = SIMILAR_SCENE;
237
238	0	m_cDetector (m_sLocalParam);
239
240	0	if (m_sSceneChangeParam.iMotionBlockNum >= iSceneChangeThresholdLarge) {
241	0	m_sSceneChangeParam.eSceneChangeIdc = LARGE_CHANGED_SCENE;
242	0	} else if (m_sSceneChangeParam.iMotionBlockNum >= iSceneChangeThresholdMedium) {
243	0	m_sSceneChangeParam.eSceneChangeIdc = MEDIUM_CHANGED_SCENE;
244	0	}
245
246	0	eReturn = RET_SUCCESS;
247
248	0	return eReturn;
249	0	} Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorVideo>::Process(int, SPixMap, SPixMap) Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorScreen>::Process(int, SPixMap, SPixMap)
250
251	0	EResult Get (int32_t iType, void* pParam) {
252	0	if (pParam == NULL) {
253	0	return RET_INVALIDPARAM;
254	0	}
255	0	* (SSceneChangeResult*)pParam = m_sSceneChangeParam;
256	0	return RET_SUCCESS;
257	0	} Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorVideo>::Get(int, void) Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorScreen>::Get(int, void)
258
259	0	EResult Set (int32_t iType, void* pParam) {
260	0	if (pParam == NULL) {
261	0	return RET_INVALIDPARAM;
262	0	}
263	0	m_sSceneChangeParam = * (SSceneChangeResult*)pParam;
264	0	return RET_SUCCESS;
265	0	} Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorVideo>::Set(int, void) Unexecuted instantiation: WelsVP::CSceneChangeDetection<WelsVP::CSceneChangeDetectorScreen>::Set(int, void)
266		private:
267		SSceneChangeResult m_sSceneChangeParam;
268		SLocalParam m_sLocalParam;
269		T m_cDetector;
270		};
271
272		IStrategy* BuildSceneChangeDetection (EMethods eMethod, int32_t iCpuFlag);
273
274		WELSVP_NAMESPACE_END
275
276		#endif