shape.hpp
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*************************************************************************
- This software module was originally developed by
- Wei-ge Chen (wchen@microsoft.com), Microsoft Corporation
- (date: April, 1997)
- in the course of development of the MPEG-4 Video (ISO/IEC 14496-2).
- This software module is an implementation of a part of one or more MPEG-4 Video tools
- as specified by the MPEG-4 Video.
- ISO/IEC gives users of the MPEG-4 Video free license to this software module or modifications
- thereof for use in hardware or software products claiming conformance to the MPEG-4 Video.
- Those intending to use this software module in hardware or software products are advised that its use may infringe existing patents.
- The original developer of this software module and his/her company,
- the subsequent editors and their companies,
- and ISO/IEC have no liability for use of this software module or modifications thereof in an implementation.
- Copyright is not released for non MPEG-4 Video conforming products.
- Microsoft retains full right to use the code for his/her own purpose,
- assign or donate the code to a third party and to inhibit third parties from using the code for non <MPEG standard> conforming products.
- This copyright notice must be included in all copies or derivative works.
- Copyright (c) 1996, 1997.
- Module Name:
- shape.hpp
- Abstract:
- binary shape codec
- Revision History:
- *************************************************************************/
- #ifndef __SHAPE_HPP_
- #define __SHAPE_HPP_
- #define BAB_TOTAL_SIZE 20
- #define BAB_BORDER_SIZE 2
- #define BAB_BORDER_SIZE_DBL 4
- #define MCBAB_BORDER_SIZE 1
- #define MCBAB_BORDER_SIZE_DBL 2
- #define MCBAB_TOTAL_SIZE 18
- Class CShapeCodec
- {
- public:
- // Constructors
- virtual ~CShapeCodec ();
- CShapeCodec (CVOPofMBs* pvopmbs);
- // Atributes
- const CIntImage* reconShape () {return m_pfiShapeRecon;}
- TransparentStatus trnspstts () const {return m_trnspstts;}
- ShapeMode encodingMode () const {return m_shpmd;}
- Bool interShape () const {assert (FALSE); return 0;}
- CVector mvDiff () const {return m_vctMVDS;}
- // operations
- Void setFirstMmr (TransparentStatus trnspstts, Bool bInterShapeCoding) {;} //useless: only for sepr mode
- protected:
- CVOPofMBs* m_pvopmbs; //place to copy the source data from
- Int m_rgiTopBorder [BAB_BORDER_SIZE] [BAB_TOTAL_SIZE];
- Int m_rgiLeftBorder [BAB_TOTAL_SIZE] [BAB_BORDER_SIZE];
- Int m_rgiCurrShp [BAB_TOTAL_SIZE] [BAB_TOTAL_SIZE];
- Int m_rgiPredShp [MCBAB_TOTAL_SIZE][MCBAB_TOTAL_SIZE];
- Int m_iContextNumber;
- ArCodec* m_parcodec;
- own CIntImage* m_pfiPred;
- Int m_iWidthOfAlphaMB; //after downsampling
- CRct m_rct;
- TransparentStatus m_trnspstts;
- CAEScanDirection m_msdir; //scanning direction
- ShapeMode m_shpmd;
- CIntImage* m_pfiShapeRecon;
- Int m_iInverseCR;
- CVector m_vctMVDS;
- // pre-processing functions
- own CIntImage* downSample (const CIntImage* pfiSrc, const CRct& rctSrc = CRct (), Int iRate = 1);
- own CIntImage* upSample (const CIntImage* pfiCurrDown, Int iRate = 1);
- Void readyReference (ShapeMode shpmd = UNKNOWN, Bool bDownSample = TRUE);
- Void transposeData (ShapeMode shpmd = UNKNOWN);
- Void computeContext (CoordI iX, CoordI iY, ShapeMode shpmd = UNKNOWN);
- };
- #endif // __SHAPE_HPP