www.pudn.com > rm52h.rar > bitstream.h

/* 
*********************************************************************** 
* COPYRIGHT AND WARRANTY INFORMATION 
* 
* Copyright 2003, Advanced Audio Video Coding Standard, Part II 
* 
* DISCLAIMER OF WARRANTY 
* 
* These software programs are available to the users without any 
* license fee or royalty on an "as is" basis. The AVS disclaims 
* any and all warranties, whether express, implied, or statutory, 
* including any implied warranties of merchantability or of fitness 
* for a particular purpose. In no event shall the contributors or  
* the AVS be liable for any incidental, punitive, or consequential 
* damages of any kind whatsoever arising from the use of this program. 
* 
* This disclaimer of warranty extends to the user of this program 
* and user's customers, employees, agents, transferees, successors, 
* and assigns. 
* 
* The AVS does not represent or warrant that the program furnished 
* hereunder 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 is available from the AVS Web site at 
* http://www.avs.org.cn 
* 
* THIS IS NOT A GRANT OF PATENT RIGHTS - SEE THE AVS PATENT POLICY. 
************************************************************************ 
*/ 
 
/* 
************************************************************************************* 
* 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  WriteSequenceHeader(); 
int  WriteSequenceDisplayExtension(); 
int  WriteUserData(char *userdata); 
int  WriteSequenceEnd(); 
void WriteBitstreamtoFile(); 
int WriteCopyrightExtension(); 
int WriteCameraParametersExtension(); 
int WriteSliceHeader(int slice_nr, int slice_qp); 
#endif