www.pudn.com > wm2.5.zip > picture.h

 
/* 
*********************************************************************** 
* COPYRIGHT AND WARRANTY INFORMATION 
* 
* Copyright 2004, 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. 
************************************************************************ 
*/ 
 
#ifndef _PICTURE_H_ 
#define _PICTURE_H_ 
 
#define tr(x)  (((int)(x)>255)?255:(((int)(x)<0)?0:(int)(x))) 
#define F1(a,b,c,d) ((unsigned char)tr((5*((int)b+(int)c)-((int)a+(int)d)+4)>>3)) 
#define F2(a,b,c,d) ((unsigned char)tr((7*((int)b+(int)c)+(int)a+(int)d+8)>>4)) 
#define F3(a,b,c,d) ((unsigned char)tr((7*((int)b+(int)c)+(int)a+(int)d+8)>>4)) 
#define F4(a,b)     ((unsigned char)tr(((int)a+(int)b+1)>>1)) 
 
void Encode_I_Frame(void); 
void Encode_P_Frame(void); 
 
void I_Picture_Header(void); 
void P_Picture_Header(void); 
 
void Padding_IP_Frame(void); 
void Interpolate_IP_Frame(void); 
 
#endif //_PICTURE_H_