ztscan_common.hpp
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上传日期:2007-02-02
资源大小:6116k
文件大小:6k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /* $Id: ztscan_common.hpp,v 1.3 2001/04/30 20:47:26 dmackie Exp $ */
- /****************************************************************************/
- /* MPEG4 Visual Texture Coding (VTC) Mode Software */
- /* */
- /* This software was jointly developed by the following participants: */
- /* */
- /* Single-quant, multi-quant and flow control */
- /* are provided by Sarnoff Corporation */
- /* Iraj Sodagar (iraj@sarnoff.com) */
- /* Hung-Ju Lee (hjlee@sarnoff.com) */
- /* Paul Hatrack (hatrack@sarnoff.com) */
- /* Shipeng Li (shipeng@sarnoff.com) */
- /* Bing-Bing Chai (bchai@sarnoff.com) */
- /* B.S. Srinivas (bsrinivas@sarnoff.com) */
- /* */
- /* Bi-level is provided by Texas Instruments */
- /* Jie Liang (liang@ti.com) */
- /* */
- /* Shape Coding is provided by OKI Electric Industry Co., Ltd. */
- /* Zhixiong Wu (sgo@hlabs.oki.co.jp) */
- /* Yoshihiro Ueda (yueda@hlabs.oki.co.jp) */
- /* Toshifumi Kanamaru (kanamaru@hlabs.oki.co.jp) */
- /* */
- /* OKI, Sharp, Sarnoff, TI and Microsoft contributed to bitstream */
- /* exchange and bug fixing. */
- /* */
- /* */
- /* In the course of development of the MPEG-4 standard, this software */
- /* module is an implementation of a part of one or more MPEG-4 tools as */
- /* specified by the MPEG-4 standard. */
- /* */
- /* The copyright of this software belongs to ISO/IEC. ISO/IEC gives use */
- /* of the MPEG-4 standard free license to use this software module or */
- /* modifications thereof for hardware or software products claiming */
- /* conformance to the MPEG-4 standard. */
- /* */
- /* Those intending to use this software module in hardware or software */
- /* products are advised that use may infringe existing patents. The */
- /* original developers of this software module and their companies, the */
- /* subsequent editors and their companies, and ISO/IEC have no liability */
- /* and ISO/IEC have no liability for use of this software module or */
- /* modification thereof in an implementation. */
- /* */
- /* Permission is granted to MPEG members to use, copy, modify, */
- /* and distribute the software modules ( or portions thereof ) */
- /* for standardization activity within ISO/IEC JTC1/SC29/WG11. */
- /* */
- /* Copyright 1995, 1996, 1997, 1998 ISO/IEC */
- /****************************************************************************/
- /************************************************************/
- /* Sarnoff Very Low Bit Rate Still Image Coder */
- /* Copyright 1995, 1996, 1997, 1998 Sarnoff Corporation */
- /************************************************************/
- #ifndef ZTSCAN_COMMON_H
- #define ZTSCAN_COMMON_H
- #include "basic.hpp"
- #include "dataStruct.hpp"
- /* definations related to arithmetic coding */
- #define NUMCHAR_TYPE 4
- #define ADAPT 1
- //#ifndef ZTSCAN_UTIL // hjlee 0901
- #ifdef DEFINE_ZTSCAN_GLOBALS
- #define ZTSCAN_GLOBALS
- #else
- #define ZTSCAN_GLOBALS extern
- #endif
- ZTSCAN_GLOBALS COEFFINFO **coeffinfo;
- ZTSCAN_GLOBALS Int color;
- ZTSCAN_GLOBALS Int height, width;
- /* The following functions assume that mzte_codec is a global variable */
- extern WVT_CODEC mzte_codec;
- #define EXTERN extern
- //#else _ZT_UTILS_
- //#define EXTERN
- //#endif // hjlee 0901
- /* Zeroth Order Model Filter - send NULL if first order (no zeroth order part)
- */
- // #define ZOMF(x) (mzte_codec.m_iAcmOrder!=AC_MODEL_FIRST ? (x) : NULL) // hjlee 0901
- /* The following functions assume that mzte_codec is a global variable */
- // extern WVT_CODEC mzte_codec; // hjlee 0901
- // hjlee 0901
- /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
- /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
- /* arithmetic coding probability models */
- /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
- /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
- #define DEFAULT_MAX_FREQ 16383
- /* arithmetic models related variables, refer to syntax for meaning */
- /*~~~ DC model ~~~*/
- EXTERN ac_model acmVZ[NCOLOR], *acm_vz; /* here only for DC */
- /*~~~ AC models ~~~*/
- #define MAX_NUM_TYPE_CONTEXTS 7
- /* meaning of element in acmType */
- /* if SQ or MQ 1st pass */
- #define CONTEXT_INIT 0
- #define CONTEXT_LINIT 1
- /* if MQ non-1st pass */
- #define CONTEXT_ZTR 2
- #define CONTEXT_ZTR_D 3
- #define CONTEXT_IZ 4
- #define CONTEXT_LZTR 5
- #define CONTEXT_LZTR_D 6
- #define Bitplane_Max_frequency 127
- EXTERN ac_model acmType[NCOLOR][MAXDECOMPLEV][MAX_NUM_TYPE_CONTEXTS],
- *acm_type[MAXDECOMPLEV][MAX_NUM_TYPE_CONTEXTS];
- EXTERN ac_model acmSign[NCOLOR][MAXDECOMPLEV], *acm_sign[MAXDECOMPLEV];
- EXTERN ac_model *acmBPMag[NCOLOR][MAXDECOMPLEV], **acm_bpmag;
- EXTERN ac_model *acmBPRes[NCOLOR][MAXDECOMPLEV], **acm_bpres;
- EXTERN ac_model *acm_bpdc; // 1127
- #endif /* ZTSCAN_COMMON_H */