| /*! | |
| * \copy | |
| * Copyright (c) 2009-2013, 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: | |
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| * * 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 | |
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| * | |
| * \file : ScrollDetectionFuncs.h | |
| * | |
| * \brief : scroll detection class of wels video processor class | |
| * | |
| * \date : 2011/04/26 | |
| * | |
| * \description : rewrite the package code of scroll detection class | |
| * | |
| ************************************************************************************* | |
| */ | |
| WELSVP_NAMESPACE_BEGIN | |
| #define MINIMUM_DETECT_WIDTH 50 // no less than 16 | |
| #define CHECK_OFFSET 25 | |
| #define MAX_SCROLL_MV_Y 511 | |
| #define REGION_NUMBER 9 | |
| #define RECORD_COLOR(a, x) \ | |
| { \ | |
| int32_t _t = (uint8_t)(a); \ | |
| x[_t>>5] |= (1 << (_t&31)); \ | |
| } | |
| int32_t CheckLine (uint8_t* pData, int32_t iWidth); | |
| int32_t SelectTestLine (uint8_t* pY, int32_t iWidth, int32_t iHeight, int32_t iPicHeight, | |
| int32_t iStride, int32_t iOffsetX, int32_t iOffsetY); | |
| int32_t CompareLine (uint8_t* pYSrc, uint8_t* pYRef, const int32_t kiWidth); | |
| void ScrollDetectionCore (SPixMap* pSrcPixMap, SPixMap* pRefPixMap, int32_t iWidth, int32_t iHeight, | |
| int32_t iOffsetX, int32_t iOffsetY, SScrollDetectionParam& sScrollDetectionParam); | |
| WELSVP_NAMESPACE_END |