ref: 93bc546ee1ca298c7d65e35f0f4863a2b3408864
dir: /codec/processing/src/scrolldetection/ScrollDetectionFuncs.h/
/*! * \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