www.pudn.com > AvsVideoCodec.rar > bitstream.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:  
* Function:  
* 
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*/ 
 
#ifndef _BIT_STREAM_H 
#define _BIT_STREAM_H 
 
#include  
 
#define SVA_START_CODE_EMULATION 
 
#ifdef SVA_START_CODE_EMULATION 
 
#define SVA_STREAM_BUF_SIZE 1024 //must large than 3 
typedef struct { 
	FILE *f; 
	unsigned char	buf[SVA_STREAM_BUF_SIZE];  //流缓冲区 
	unsigned int	uPreBytes;//最近写入的3个字节，初始值是0xFFFFFFFF 
	int	iBytePosition;		//当前字节位置 
	int	iBitOffset;			//当前位偏移，0表示最高位 
	int	iNumOfStuffBits;	//已插入的填充位的个数，遇到开始码时置0 
	int iBitsCount;			//码流总位数 
} OutputStream; 
int write_start_code(OutputStream *p,unsigned char code); 
extern OutputStream *pORABS; 
#endif 
 
void CloseBitStreamFile(); 
void OpenBitStreamFile(char *Filename); 
int  WriteVideoEditCode(); //added by cjw 20070419 
int  WriteSequenceHeader(); 
int  WriteSequenceDisplayExtension(); 
int  WriteUserData(char *userdata); 
int  WriteSequenceEnd(); 
void WriteBitstreamtoFile(); 
int WriteCopyrightExtension(); 
int WriteCameraParametersExtension(); 
int WriteSliceHeader(int slice_nr, int slice_qp); 
#endif