www.pudn.com > rm52f.rar > elements.h

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*///Lou 
 
/*! 
 ************************************************************************** 
 *  \file elements.h 
 *  \brief  Header file for elements in AVS streams 
 *  \date 6.10.2000,  
 *  \version 
 *      1.1 
 * 
 * \note 
 *    Version 1.0 included three partition modes, no DP, 2 partitionsper slice 
 *      and 4 partitions per slice.  As per document VCEG-N72 this is changed 
 *      in version 1.1 to only two patrition modes, one without DP and one with  
 *      3 partition per slice 
 *. 
 *  \author Sebastian Purreiter      
 *  \author Stephan Wenger           
 * 
 ************************************************************************** 
 *///Lou 
 
#ifndef _ELEMENTS_H_ 
#define _ELEMENTS_H_ 
 
#include "global.h" 
/*! 
 *  definition of AVS syntax elements 
 *  order of elements follow dependencies for picture reconstruction 
 */ 
/*! 
 * \brief   Assignment of old TYPE or partition elements to new 
 *          elements 
 * 
 *  old element     | new elements 
 *  ----------------+------------------------------------------------------------------- 
 *  TYPE_HEADER     | SE_HEADER, SE_PTYPE 
 *  TYPE_MBHEADER   | SE_MBTYPE, SE_REFFRAME, SE_INTRAPREDMODE 
 *  TYPE_MVD        | SE_MVD 
 *  TYPE_CBP        | SE_CBP_INTRA, SE_CBP_INTER 
 *  TYPE_COEFF_Y    | SE_LUM_DC_INTRA, SE_LUM_AC_INTRA, SE_LUM_DC_INTER, SE_LUM_AC_INTER 
 *  TYPE_2x2DC      | SE_CHR_DC_INTRA, SE_CHR_DC_INTER 
 *  TYPE_COEFF_C    | SE_CHR_AC_INTRA, SE_CHR_AC_INTER 
 *  TYPE_EOS        | SE_EOS 
*/ 
 
#define MAXPARTITIONMODES 2 //!< maximum possible partition modes as defined in assignSE2partition[][] 
/*! 
 *  \brief  lookup-table to assign different elements to partition 
 * 
 *  \note here we defined up to 6 different partitions similar to 
 *      document Q15-k-18 described in the PROGFRAMEMODE. 
 *      The Sliceheader contains the PSYNC information. \par 
 * 
 *      Elements inside a partition are not ordered. They are 
 *      ordered by occurence in the stream. 
 *      Assumption: Only partitionlosses are considered. \par 
 * 
 *      The texture elements luminance and chrominance are 
 *      not ordered in the progressive form 
 *      This may be changed in image.c \par 
 * 
 *  -IMPORTANT: 
 *      Picture- or Sliceheaders must be assigned to partition 0. \par 
 *      Furthermore partitions must follow syntax dependencies as 
 *      outlined in document Q15-J-23. 
 */ 
 
// A note on this table: 
// 
// While the assignment of values in enum data types is specified in C, it is not 
// very ood style to have an "elementnumber", not even as a comment. 
// 
// Hence a copy of the relevant structure from global.h here 
 
 
static int assignSE2partition[][SE_MAX_ELEMENTS] = 
{ 
  // 0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 // elementnumber (no not uncomment) 
  {  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },   //!< all elements in one partition no data partitioning 
  {  0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 0, 0 }    //!< three partitions per slice 
}; 
 
#endif