/*! * \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: * *        * 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         :  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