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Merge pull request #635 from lyao2/new_scroll_dev

add scroll detection files

sijchen committed 12 years ago

Commit a7582822 parents 3689361 21c74fe9 files · +499 −10Browse files

Showing the changes to codec/processing/src (6 of 9 files). Show all

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6 files
  1. codec/processing/src/common/WelsFrameWork.cpp +4 −0
  2. codec/processing/src/scenechangedetection/SceneChangeDetection.h +10 −10
  3. codec/processing/src/scrolldetection/ScrollDetection.cpp +119 −0
  4. codec/processing/src/scrolldetection/ScrollDetection.h +73 −0
  5. codec/processing/src/scrolldetection/ScrollDetectionFuncs.cpp +202 −0
  6. codec/processing/src/scrolldetection/ScrollDetectionFuncs.h +61 −0
codec/processing/src/common/WelsFrameWork.cpp+4−0
@@ -33,6 +33,7 @@ · 32 unmodified lines
3333 #include "WelsFrameWork.h"
3434 #include "../denoise/denoise.h"
3535 #include "../downsample/downsample.h"
36+#include "../scrolldetection/ScrollDetection.h"
3637 #include "../scenechangedetection/SceneChangeDetection.h"
3738 #include "../vaacalc/vaacalculation.h"
3839 #include "../backgrounddetection/BackgroundDetection.h"
@@ -265,6 +266,9 @@ IStrategy* CVpFrameWork::CreateStrategy (EMethods m_eMethod, int32_t iCpuFlag) { · 226 unmodified lines
265266 case METHOD_DENOISE:
266267 pStrategy = WelsDynamicCast (IStrategy*, new CDenoiser (iCpuFlag));
267268 break;
269+ case METHOD_SCROLL_DETECTION:
270+ pStrategy = WelsDynamicCast (IStrategy*, new CScrollDetection(iCpuFlag));
271+ break;
268272 case METHOD_SCENE_CHANGE_DETECTION_VIDEO:
269273 case METHOD_SCENE_CHANGE_DETECTION_SCREEN:
270274 pStrategy = BuildSceneChangeDetection(m_eMethod, iCpuFlag);
codec/processing/src/scenechangedetection/SceneChangeDetection.h+10−10
@@ -28,16 +28,16 @@ · 27 unmodified lines
2828 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2929 * POSSIBILITY OF SUCH DAMAGE.
3030 *
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−*/
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+ */
4141
4242 #ifndef WELSVP_SCENECHANGEDETECTION_H
4343 #define WELSVP_SCENECHANGEDETECTION_H
codec/processing/src/scrolldetection/ScrollDetection.cpp+119−0
@@ -0,0 +1,119 @@
1+/*!
2+ * \copy
3+ * Copyright (c) 2009-2013, 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+ */
32+
33+
34+#include "ScrollDetection.h"
35+#include "ScrollDetectionFuncs.h"
36+#include "cpu.h"
37+
38+WELSVP_NAMESPACE_BEGIN
39+
40+EResult CScrollDetection::Process(int32_t iType, SPixMap* pSrcPixMap, SPixMap* pRefPixMap){
41+ if (pRefPixMap->pPixel[0] == NULL || pRefPixMap->pPixel[1] == NULL || pRefPixMap->pPixel[2] == NULL
42+ || pSrcPixMap->pPixel[0] == NULL || pSrcPixMap->pPixel[1] == NULL || pSrcPixMap->pPixel[2] == NULL
43+ || pRefPixMap->sRect.iRectWidth != pSrcPixMap->sRect.iRectWidth || pRefPixMap->sRect.iRectHeight != pSrcPixMap->sRect.iRectHeight){
44+ return RET_INVALIDPARAM;
45+ }
46+
47+ if (!m_sScrollDetectionParam.bMaskInfoAvailable)
48+ ScrollDetectionWithoutMask(pSrcPixMap, pRefPixMap);
49+ else
50+ ScrollDetectionWithMask(pSrcPixMap, pRefPixMap);
51+
52+ return RET_SUCCESS;
53+}
54+
55+EResult CScrollDetection::Set(int32_t iType, void *pParam){
56+ if( pParam == NULL ){
57+ return RET_INVALIDPARAM;
58+ }
59+ m_sScrollDetectionParam = *((SScrollDetectionParam*)pParam);
60+ return RET_SUCCESS;
61+}
62+
63+EResult CScrollDetection::Get(int32_t iType, void *pParam){
64+ if( pParam == NULL ){
65+ return RET_INVALIDPARAM;
66+ }
67+ *((SScrollDetectionParam*)pParam) = m_sScrollDetectionParam;
68+ return RET_SUCCESS;
69+}
70+
71+void CScrollDetection::ScrollDetectionWithMask(SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {
72+ int32_t iStartX, iStartY, iWidth, iHeight;
73+
74+ iStartX = m_sScrollDetectionParam.sMaskRect.iRectLeft;
75+ iStartY = m_sScrollDetectionParam.sMaskRect.iRectTop;
76+ iWidth = m_sScrollDetectionParam.sMaskRect.iRectWidth;
77+ iHeight = m_sScrollDetectionParam.sMaskRect.iRectHeight;
78+
79+ iWidth /= 2;
80+ iStartX += iWidth/2;
81+
82+ m_sScrollDetectionParam.iScrollMvX = 0;
83+ m_sScrollDetectionParam.iScrollMvY = 0;
84+ m_sScrollDetectionParam.bScrollDetectFlag = false;
85+
86+ if(iStartX >= 0 && iWidth > MINIMUM_DETECT_WIDTH && iHeight > 2 * CHECK_OFFSET){
87+ ScrollDetectionCore(pSrcPixMap, pRefPixMap,iWidth, iHeight, iStartX, iStartY, m_sScrollDetectionParam);
88+ }
89+}
90+
91+void CScrollDetection::ScrollDetectionWithoutMask(SPixMap* pSrcPixMap, SPixMap* pRefPixMap){
92+ int32_t iStartX, iStartY, iWidth, iHeight;
93+
94+ const int32_t kiPicBorderWidth= pSrcPixMap->sRect.iRectHeight>>4;
95+ const int32_t kiRegionWidth = (int) (pSrcPixMap->sRect.iRectWidth-(kiPicBorderWidth<<1))/3;
96+ const int32_t kiRegionHeight = (pSrcPixMap->sRect.iRectHeight*7)>>3;
97+ const int32_t kiHieghtStride = (int) pSrcPixMap->sRect.iRectHeight*5/24;
98+
99+ for (int32_t i=0; i< REGION_NUMBER;i++){
100+ iStartX = kiPicBorderWidth+(i%3)*kiRegionWidth;
101+ iStartY = -pSrcPixMap->sRect.iRectHeight*7/48+ (int)(i/3)*(kiHieghtStride);
102+ iWidth = kiRegionWidth;
103+ iHeight = kiRegionHeight;
104+
105+ iWidth /= 2;
106+ iStartX += iWidth/2;
107+
108+ m_sScrollDetectionParam.iScrollMvX = 0;
109+ m_sScrollDetectionParam.iScrollMvY = 0;
110+ m_sScrollDetectionParam.bScrollDetectFlag = false;
111+
112+ ScrollDetectionCore(pSrcPixMap, pRefPixMap, iWidth, iHeight, iStartX, iStartY, m_sScrollDetectionParam);
113+
114+ if (m_sScrollDetectionParam.bScrollDetectFlag && m_sScrollDetectionParam.iScrollMvY)
115+ break;
116+ }
117+}
118+
119+WELSVP_NAMESPACE_END
codec/processing/src/scrolldetection/ScrollDetection.h+73−0
@@ -0,0 +1,73 @@
1+/*!
2+ * \copy
3+ * Copyright (c) 2009-2013, 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 : ScrollDectection.h
32+ *
33+ * \brief : scroll detection class of wels video processor class
34+ *
35+ * \date : 2011/04/26
36+ *
37+ * \description : rewrite the package code of scroll detection class
38+ *
39+ *************************************************************************************
40+ */
41+
42+#include "util.h"
43+#include "memory.h"
44+#include "WelsFrameWork.h"
45+#include "IWelsVP.h"
46+
47+WELSVP_NAMESPACE_BEGIN
48+
49+#ifdef HAVE_MMX
50+WELSVP_EXTERN_C_BEGIN
51+WELSVP_EXTERN_C_END
52+#endif
53+
54+class CScrollDetection : public IStrategy{
55+public:
56+ CScrollDetection(int32_t iCpuFlag){
57+ m_eMethod = METHOD_SCROLL_DETECTION;
58+ WelsMemset (&m_sScrollDetectionParam, 0, sizeof (m_sScrollDetectionParam));
59+ };
60+ ~CScrollDetection(){
61+ }
62+ EResult Process(int32_t iType, SPixMap* pSrcPixMap, SPixMap* pRefPixMap);
63+ EResult Set(int32_t iType, void *pParam);
64+ EResult Get(int32_t iType, void *pParam);
65+
66+private:
67+ void ScrollDetectionWithMask(SPixMap* pSrcPixMap, SPixMap* pRefPixMap);
68+ void ScrollDetectionWithoutMask(SPixMap* pSrcPixMap, SPixMap* pRefPixMap);
69+private:
70+ SScrollDetectionParam m_sScrollDetectionParam;
71+};
72+
73+WELSVP_NAMESPACE_END
codec/processing/src/scrolldetection/ScrollDetectionFuncs.cpp+202−0
@@ -0,0 +1,202 @@
1+/*!
2+ * \copy
3+ * Copyright (c) 2009-2013, 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+ */
32+
33+#include "ScrollDetection.h"
34+#include "ScrollDetectionFuncs.h"
35+
36+WELSVP_NAMESPACE_BEGIN
37+
38+int32_t CheckLine(uint8_t* pData, int32_t iWidth){
39+ int32_t iQualified = 0;
40+ int32_t iColorMap[8] = {0};
41+ int32_t iChangedTimes = 0;
42+ int32_t iColorCounts = 0;
43+
44+ RECORD_COLOR(pData[0], iColorMap);
45+
46+ for (int32_t i=1; i<iWidth; i++){
47+ RECORD_COLOR(pData[i], iColorMap);
48+ iChangedTimes += (pData[i] != pData[i-1]);
49+ }
50+ for (int32_t i=0; i<8; i++)
51+ for (int32_t j=0; j<32; j++)
52+ iColorCounts += ((iColorMap[i] >> j)&1);
53+
54+ switch(iColorCounts){
55+ case 1:
56+ iQualified = 0;
57+ break;
58+ case 2:
59+ case 3:
60+ iQualified = (iChangedTimes > 3);
61+ break;
62+ default:
63+ iQualified = 1;
64+ break;
65+ }
66+ return iQualified;
67+}
68+
69+int32_t SelectTestLine(uint8_t* pY, int32_t iWidth, int32_t iHeight, int32_t iPicHeight,
70+ int32_t iStride, int32_t iOffsetX, int32_t iOffsetY){
71+ const int32_t kiHalfHeight = iHeight >> 1;
72+ const int32_t kiMidPos = iOffsetY + kiHalfHeight;
73+ int32_t TestPos = kiMidPos;
74+ int32_t iOffsetAbs;
75+ uint8_t* pTmp;
76+
77+ for (iOffsetAbs = 0; iOffsetAbs < kiHalfHeight; iOffsetAbs++){
78+ TestPos = kiMidPos + iOffsetAbs;
79+ if (TestPos < iPicHeight){
80+ pTmp = pY + TestPos * iStride + iOffsetX;
81+ if (CheckLine(pTmp, iWidth)) break;
82+ }
83+ TestPos = kiMidPos - iOffsetAbs;
84+ if(TestPos >=0){
85+ pTmp = pY + TestPos * iStride + iOffsetX;
86+ if (CheckLine(pTmp, iWidth)) break;
87+ }
88+ }
89+ if (iOffsetAbs == kiHalfHeight)
90+ TestPos = -1;
91+ return TestPos;
92+}
93+
94+/*
95+ * compare pixel line between previous and current one
96+ * return: 0 for totally equal, otherwise 1
97+ */
98+int32_t CompareLine(uint8_t *pYSrc, uint8_t *pYRef, const int32_t kiWidth)
99+{
100+ int32_t iCmp = 1;
101+
102+ if ( *((int32_t*)pYSrc) != *((int32_t*)pYRef)) return 1;
103+ if ( *((int32_t*)(pYSrc + 4)) != *((int32_t*)(pYRef + 4))) return 1;
104+ if ( *((int32_t*)(pYSrc + 8)) != *((int32_t*)(pYRef + 8))) return 1;
105+ if ( kiWidth > 12 )
106+ iCmp = WelsMemcmp(pYSrc+12, pYRef+12, kiWidth-12);
107+ return iCmp;
108+}
109+
110+void ScrollDetectionCore(SPixMap* pSrcPixMap, SPixMap* pRefPixMap, int32_t iWidth, int32_t iHeight,
111+ int32_t iOffsetX, int32_t iOffsetY, SScrollDetectionParam &sScrollDetectionParam){
112+ bool bScrollDetected = 0;
113+ uint8_t* pYLine;
114+ uint8_t* pYTmp;
115+ int32_t iTestPos, iSearchPos = 0, iOffsetAbs, iMaxAbs;
116+ int32_t iPicHeight = pRefPixMap->sRect.iRectHeight;
117+ int32_t iMinHeight = WELS_MAX(iOffsetY,0);
118+ int32_t iMaxHeight = WELS_MIN(iOffsetY + iHeight - 1, iPicHeight-1) ;//offset_y + height - 1;//
119+ uint8_t* pYRef, *pYSrc;
120+ int32_t iYStride;
121+
122+ pYRef = (uint8_t*)pRefPixMap->pPixel[0];
123+ pYSrc = (uint8_t*)pSrcPixMap->pPixel[0];
124+ iYStride = pRefPixMap->iStride[0];
125+
126+ iTestPos = SelectTestLine(pYSrc, iWidth, iHeight, iPicHeight, iYStride, iOffsetX, iOffsetY);
127+
128+ if (iTestPos == -1){
129+ sScrollDetectionParam.bScrollDetectFlag = 0;
130+ return;
131+ }
132+ pYLine = pYSrc + iYStride * iTestPos + iOffsetX;
133+ iMaxAbs = WELS_MIN(WELS_MAX(iTestPos-iMinHeight-1, iMaxHeight-iTestPos),MAX_SCROLL_MV_Y);
134+ iSearchPos = iTestPos;
135+ for (iOffsetAbs = 0; iOffsetAbs <= iMaxAbs; iOffsetAbs++){
136+ iSearchPos = iTestPos + iOffsetAbs;
137+ if (iSearchPos <= iMaxHeight){
138+ pYTmp = pYRef + iSearchPos * iYStride + iOffsetX;
139+ if (!CompareLine(pYLine, pYTmp, iWidth)){
140+ uint8_t *pYUpper, *pYLineUpper;
141+ int32_t iCheckedLines;
142+ int32_t iLowOffset = WELS_MIN(iMaxHeight - iSearchPos, CHECK_OFFSET);
143+ int32_t i;
144+
145+ iCheckedLines = WELS_MIN(iTestPos - iMinHeight + iLowOffset, 2 * CHECK_OFFSET);
146+ pYUpper = pYTmp - (iCheckedLines - iLowOffset) * iYStride;
147+ pYLineUpper = pYLine - (iCheckedLines - iLowOffset) * iYStride;
148+
149+ for(i = 0; i < iCheckedLines; i ++){
150+ if (CompareLine(pYLineUpper, pYUpper, iWidth)){
151+ break;
152+ }
153+ pYUpper += iYStride;
154+ pYLineUpper += iYStride;
155+ }
156+ if (i == iCheckedLines){
157+ bScrollDetected=1;
158+ break;
159+ }
160+ }
161+ }
162+
163+ iSearchPos = iTestPos - iOffsetAbs-1;
164+ if (iSearchPos >= iMinHeight){
165+ pYTmp = pYRef + iSearchPos * iYStride + iOffsetX;
166+ if (!CompareLine(pYLine, pYTmp, iWidth))
167+ {
168+ uint8_t *pYUpper, *pYLineUpper;
169+ int32_t iCheckedLines;
170+ int32_t iUpOffset = WELS_MIN(iSearchPos - iMinHeight, CHECK_OFFSET);
171+ int32_t i;
172+
173+ pYUpper = pYTmp - iUpOffset * iYStride;
174+ pYLineUpper = pYLine - iUpOffset * iYStride;
175+ iCheckedLines = WELS_MIN(iMaxHeight - iTestPos + iUpOffset, 2 * CHECK_OFFSET);
176+
177+ for(i = 0; i < iCheckedLines; i ++){
178+ if (CompareLine(pYLineUpper,pYUpper, iWidth)){
179+ break;
180+ }
181+ pYUpper += iYStride;
182+ pYLineUpper += iYStride;
183+ }
184+ if (i == iCheckedLines){
185+ bScrollDetected=1;
186+ break;
187+ }
188+ }
189+ }
190+ }
191+
192+ if (!bScrollDetected){
193+ sScrollDetectionParam.bScrollDetectFlag = 0;
194+ }
195+ else{
196+ sScrollDetectionParam.bScrollDetectFlag = 1;
197+ sScrollDetectionParam.iScrollMvY = iSearchPos - iTestPos; // pre_pos - cur_pos, change to mv
198+ sScrollDetectionParam.iScrollMvX = 0;
199+ }
200+}
201+
202+WELSVP_NAMESPACE_END
codec/processing/src/scrolldetection/ScrollDetectionFuncs.h+61−0
@@ -0,0 +1,61 @@
1+/*!
2+ * \copy
3+ * Copyright (c) 2009-2013, 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 : ScrollDetectionFuncs.h
32+ *
33+ * \brief : scroll detection class of wels video processor class
34+ *
35+ * \date : 2011/04/26
36+ *
37+ * \description : rewrite the package code of scroll detection class
38+ *
39+ *************************************************************************************
40+ */
41+
42+WELSVP_NAMESPACE_BEGIN
43+
44+#define MINIMUM_DETECT_WIDTH 50 // no less than 16
45+#define CHECK_OFFSET 25
46+#define MAX_SCROLL_MV_Y 511
47+#define REGION_NUMBER 9
48+#define RECORD_COLOR(a, x) \
49+{ \
50+ int32_t _t = (uint8_t)(a); \
51+ x[_t>>5] |= (1 << (_t&31)); \
52+}
53+
54+int32_t CheckLine(uint8_t* pData, int32_t iWidth);
55+int32_t SelectTestLine(uint8_t* pY, int32_t iWidth, int32_t iHeight, int32_t iPicHeight,
56+ int32_t iStride, int32_t iOffsetX, int32_t iOffsetY);
57+int32_t CompareLine(uint8_t *pYSrc, uint8_t *pYRef, const int32_t kiWidth);
58+void ScrollDetectionCore(SPixMap* pSrcPixMap, SPixMap* pRefPixMap, int32_t iWidth, int32_t iHeight,
59+ int32_t iOffsetX, int32_t iOffsetY, SScrollDetectionParam &sScrollDetectionParam);
60+
61+WELSVP_NAMESPACE_END

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