| /*! |
| * \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 |
