www.pudn.com > AvsVideoCodec.rar > defines.h
/*
*****************************************************************************
* COPYRIGHT AND WARRANTY INFORMATION
*
* Copyright 2003, Advanced Audio Video Coding Standard, Part II
*
* DISCLAIMER OF WARRANTY
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations under
* the License.
*
* THIS IS NOT A GRANT OF PATENT RIGHTS - SEE THE AVS PATENT POLICY.
* The AVS Working Group doesn't represent or warrant that the programs
* furnished here under are free of infringement of any third-party patents.
* Commercial implementations of AVS, including shareware, may be
* subject to royalty fees to patent holders. Information regarding
* the AVS patent policy for standardization procedure is available at
* AVS Web site http://www.avs.org.cn. Patent Licensing is outside
* of AVS Working Group.
*
* The Original Code is Reference Software for China National Standard
* GB/T 20090.2-2006 (short for AVS-P2 or AVS Video) at version RM52J.
*
* The Initial Developer of the Original Code is Video subgroup of AVS
* Workinggroup (Audio and Video coding Standard Working Group of China).
* Contributors: Guoping Li, Siwei Ma, Jian Lou, Qiang Wang ,
* Jianwen Chen,Haiwu Zhao, Xiaozhen Zheng, Junhao Zheng, Zhiming Wang
*
******************************************************************************
*/
/*
*************************************************************************************
* File name: defines.h
* Function: Headerfile containing some useful global definitions
*
*************************************************************************************
*/
#ifndef _DEFINES_H_
#define _DEFINES_H_
#define MAX_NO_POC_FRAMES 10 //size of poc ref array = max no ref frames+1
#define MAX_LENGTH_POC_CYCLE 10 //max no in type 1 poc cycle
#define NONREFFRAME 0 // used with push_poc
#define REFFRAME 1
#define DCT_BLOCK_SIZE 8
// CAVLC
#define LUMA 0
#define LUMA_INTRA16x16DC 1
#define LUMA_INTRA16x16AC 2
#define TOTRUN_NUM 15
#define RUNBEFORE_NUM 7
//--- block types for CABAC ----
#define LUMA_16DC 0
#define LUMA_16AC 1
#define LUMA_8x8 2
#define LUMA_8x4 3
#define LUMA_4x8 4
#define LUMA_4x4 5
#define CHROMA_DC 6
#define CHROMA_AC 7
#define NUM_BLOCK_TYPES 8
#define MAX_INFO_WORD 300000 //!< for one frame
#define MAX_CODED_FRAME_SIZE 1500000 //!< bytes for one frame
#define MAXIMUM_UVLC_CODEWORD_PER_HEADER 20 //!< UVLC codewords per combined picture/slice header maximum
#define TRACE 0 //!< 0:Trace off 1:Trace on
#define _LEAKYBUCKET_
#define absm(A) ((A)<(0) ? (-(A)):(A)) //!< abs macro, faster than procedure
#define MAX_VALUE 999999 //!< used for start value for some variables
#define Clip1(a) ((a)>255?255:((a)<0?0:(a)))
#define Clip3(min,max,val) (((val)<(min))?(min):(((val)>(max))?(max):(val)))
// FLAGS and DEFINES.
#define B8_SIZE 8 // block size of transformed block
//Lou 1014 #define QUANT_PERIOD 6 // mantissa/exponent quantization, step size doubles every QUANT_PERIOD qp
#define QUANT_PERIOD 8 // mantissa/exponent quantization, step size doubles every QUANT_PERIOD qp
#define _ALT_SCAN_ // use GI scan field coding
//Lou 1013 #define QP_OFS -12 // workaround to use old qp-design
#define _CD_4x4VALUES_ // use baseline 4x4 quantization values
#define P8x8 8
#define I4MB 9
#define I16MB 10
#define IBLOCK 11
#define SI4MB 12
#define MAXMODE 13
#define IS_INTRA(MB) ((MB)->mb_type==I4MB || (MB)->mb_type==I16MB)
#define IS_NEWINTRA(MB) ((MB)->mb_type==I16MB)
#define IS_OLDINTRA(MB) ((MB)->mb_type==I4MB)
#define IS_INTER(MB) ((MB)->mb_type!=I4MB && (MB)->mb_type!=I16MB)
#define IS_INTERMV(MB) ((MB)->mb_type!=I4MB && (MB)->mb_type!=I16MB && (MB)->mb_type!=0)
#define IS_DIRECT(MB) ((MB)->mb_type==0 && (img-> type== B_IMG ))
#define IS_COPY(MB) ((MB)->mb_type==0 && (img-> type==P_IMG))
#define IS_P8x8(MB) ((MB)->mb_type==P8x8)
// Quantization parameter range
//Lou 1014#define MIN_QP 0
//Lou 1014#define MAX_QP 51
#define MIN_QP 0
#define MAX_QP 63
#define BLOCK_SIZE 4
#define B8_SIZE 8
#define MB_BLOCK_SIZE 16
#define NO_INTRA_PMODE 5 //!< #intra prediction modes
/* 4x4 intra prediction modes */
#define VERT_PRED 0
#define HOR_PRED 1
#define DC_PRED 2
#define DOWN_LEFT_PRED 3
#define DOWN_RIGHT_PRED 4
// 16x16 intra prediction modes
#define VERT_PRED_16 0
#define HOR_PRED_16 1
#define DC_PRED_16 2
#define PLANE_16 3
// 8x8 chroma intra prediction modes
#define DC_PRED_8 0
#define HOR_PRED_8 1
#define VERT_PRED_8 2
#define PLANE_8 3
// QCIF format
#define IMG_WIDTH 176
#define IMG_HEIGHT 144
#define IMG_WIDTH_CR 88
#define IMG_HEIGHT_CR 72
#define INIT_FRAME_RATE 30
#define EOS 1 //!< End Of Sequence
#define SOP 2 //!< Start Of Picture
#define SOS 3 //!< Start Of Slice
#define EOS_MASK 0x01 //!< mask for end of sequence (bit 1)
#define ICIF_MASK 0x02 //!< mask for image format (bit 2)
#define QP_MASK 0x7C //!< mask for quant.parameter (bit 3->7)
#define TR_MASK 0x7f80 //!< mask for temporal referance (bit 8->15)
#define DECODING_OK 0
#define SEARCH_SYNC 1
#define PICTURE_DECODED 2
#define MIN_PIX_VAL 0 //!< lowest legal values for 8 bit sample
#define MAX_PIX_VAL 255 //!< highest legal values for 8 bit sample
#define MAX_REFERENCE_PICTURES 15
#ifndef WIN32
#define max(a, b) ((a) > (b) ? (a) : (b)) //!< Macro returning max value
#define min(a, b) ((a) < (b) ? (a) : (b)) //!< Macro returning min value
#endif
#define mmax(a, b) ((a) > (b) ? (a) : (b)) //!< Macro returning max value
#define mmin(a, b) ((a) < (b) ? (a) : (b)) //!< Macro returning min value
#define clamp(a,b,c) ( (a)<(b) ? (b) : ((a)>(c)?(c):(a)) ) //!< clamp a to the range of [b;c]
#define MVPRED_MEDIAN 0
#define MVPRED_L 1
#define MVPRED_U 2
#define MVPRED_UR 3
#define DECODE_COPY_MB 0
#define DECODE_MB 1
#define BLOCK_MULTIPLE (MB_BLOCK_SIZE/(BLOCK_SIZE*2))
#define MAX_SYMBOLS_PER_MB 1200 //!< Maximum number of different syntax elements for one MB
#define MAX_PART_NR 3 /*!< Maximum number of different data partitions.
Some reasonable number which should reflect
what is currently defined in the SE2Partition
map (elements.h) */
// Interim File Format: define the following macro to identify which version is
// used in the implementation
#define WORKING_DRAFT_MAJOR_NO 0 // inidicate the working draft version number
#define WORKING_DRAFT_MINOR_NO 4
#define INTERIM_FILE_MAJOR_NO 0 // indicate interim file format version number
#define INTERIM_FILE_MINOR_NO 1
//Start code and Emulation Prevention need this to be defined in identical manner at encoder and decoder
#define ZEROBYTES_SHORTSTARTCODE 2 //indicates the number of zero bytes in the short start-code prefix
#endif