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macroblock.h
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上传日期：2007-02-02
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文件大小：5k
源码类别：

流媒体/Mpeg4/MP4

开发平台：

Visual C++

macroblock.h：源码内容
  1. /*
  2. ***********************************************************************
  3. * COPYRIGHT AND WARRANTY INFORMATION
  4. *
  5. * Copyright 2001, International Telecommunications Union, Geneva
  6. *
  7. * DISCLAIMER OF WARRANTY
  8. *
  9. * These software programs are available to the user without any
  10. * license fee or royalty on an "as is" basis. The ITU disclaims
  11. * any and all warranties, whether express, implied, or
  12. * statutory, including any implied warranties of merchantability
  13. * or of fitness for a particular purpose.  In no event shall the
  14. * contributor or the ITU be liable for any incidental, punitive, or
  15. * consequential damages of any kind whatsoever arising from the
  16. * use of these programs.
  17. *
  18. * This disclaimer of warranty extends to the user of these programs
  19. * and user's customers, employees, agents, transferees, successors,
  20. * and assigns.
  21. *
  22. * The ITU does not represent or warrant that the programs furnished
  23. * hereunder are free of infringement of any third-party patents.
  24. * Commercial implementations of ITU-T Recommendations, including
  25. * shareware, may be subject to royalty fees to patent holders.
  26. * Information regarding the ITU-T patent policy is available from
  27. * the ITU Web site at http://www.itu.int.
  28. *
  29. * THIS IS NOT A GRANT OF PATENT RIGHTS - SEE THE ITU-T PATENT POLICY.
  30. ************************************************************************
  31. */
  33. /*!
  34.  ************************************************************************
  35.  * file
  36.  *    macroblock.h
  37.  *
  38.  * author
  39.  *    Inge Lille-Lang鴜               <inge.lille-langoy@telenor.com>     n
  40.  *    Telenor Satellite Services                                          n
  41.  *    P.O.Box 6914 St.Olavs plass                                         n
  42.  *    N-0130 Oslo, Norway
  43.  *
  44.  ************************************************************************/
  45. #ifndef _MACROBLOCK_H_
  46. #define _MACROBLOCK_H_
  49. //! just to make new temp intra mode table
  50. const int  MODTAB[3][2]=
  51. {
  52.   { 0, 4},
  53.   {16,12},
  54.   { 8,20}
  55. };
  57. //! gives codeword number from CBP value, both for intra and inter
  58. const int NCBP[48][2]=
  59. {
  60.   { 3, 0},{29, 2},{30, 3},{17, 7},{31, 4},{18, 8},{37,17},{ 8,13},{32, 5},{38,18},{19, 9},{ 9,14},
  61.   {20,10},{10,15},{11,16},{ 2,11},{16, 1},{33,32},{34,33},{21,36},{35,34},{22,37},{39,44},{ 4,40},
  62.   {36,35},{40,45},{23,38},{ 5,41},{24,39},{ 6,42},{ 7,43},{ 1,19},{41, 6},{42,24},{43,25},{25,20},
  63.   {44,26},{26,21},{46,46},{12,28},{45,27},{47,47},{27,22},{13,29},{28,23},{14,30},{15,31},{ 0,12},
  64. };
  66. /*!
  67. Return prob.(0-5) for the input intra prediction mode(0-5),
  68. depending on previous (right/above) pred mode(0-6).                                n
  69.                                                                                    n
  70. NA values are set to 0 in the array.                                               n
  71. The modes for the neighbour blocks are signalled:                                  n
  72. 0 = outside                                                                        n
  73. 1 = DC                                                                             n
  74. 2 = diagonal vert 22.5 deg                                                         n
  75. 3 = vertical                                                                       n
  76. 4 = diagonal 45 deg                                                                n
  77. 5 = horizontal                                                                     n
  78. 6 = diagonal horizontal -22.5 deg                                                  n
  79.                                                                                    n
  80. prob order=PRED_IPRED[B(block left)][A(block above)][intra mode] */
  81. const byte PRED_IPRED[7][7][6]=
  82. {
  83.   {
  84.     {0,0,0,0,0,0},
  85.     {0,0,0,0,1,2},
  86.     {0,0,0,0,1,2},
  87.     {0,0,0,0,1,2},
  88.     {0,0,0,0,1,2},
  89.     {1,0,0,0,0,2},
  90.     {1,0,0,0,2,0},
  91.   },
  92.   {
  93.     {0,2,1,0,0,0},
  94.     {0,2,5,3,1,4},
  95.     {0,1,4,3,2,5},
  96.     {0,1,2,3,4,5},
  97.     {1,3,5,0,2,4},
  98.     {1,4,5,2,0,3},
  99.     {2,4,5,3,1,0},
  100.   },
  101.   {
  102.     {1,0,2,0,0,0},
  103.     {1,0,4,3,2,5},
  104.     {1,0,2,4,3,5},
  105.     {1,0,2,3,4,5},
  106.     {2,1,4,0,3,5},
  107.     {1,2,5,4,0,3},
  108.     {0,1,5,4,3,2},
  109.   },
  110.   {
  111.     {1,2,0,0,0,0},
  112.     {2,4,0,1,3,5},
  113.     {1,3,0,2,4,5},
  114.     {2,1,0,3,4,5},
  115.     {3,2,0,1,5,4},
  116.     {2,5,0,3,1,4},
  117.     {1,2,0,5,3,4},
  118.   },
  119.   {
  120.     {0,1,2,0,0,0},
  121.     {1,4,3,0,2,5},
  122.     {0,3,2,1,4,5},
  123.     {1,3,2,0,4,5},
  124.     {1,4,3,0,2,5},
  125.     {2,4,5,1,0,3},
  126.     {2,4,5,1,3,0},
  127.   },
  128.   {
  129.     {0,1,2,0,0,0},
  130.     {0,3,5,2,1,4},
  131.     {0,2,4,3,1,5},
  132.     {0,3,2,4,1,5},
  133.     {1,4,5,2,0,3},
  134.     {1,4,5,2,0,3},
  135.     {2,4,5,3,0,1},
  136.   },
  137.   {
  138.     {0,1,2,0,0,0},
  139.     {0,4,5,2,1,3},
  140.     {0,1,5,3,2,4},
  141.     {0,1,3,2,4,5},
  142.     {1,4,5,0,3,2},
  143.     {1,4,5,3,0,2},
  144.     {1,3,5,4,2,0},
  145.   }
  146. };
  148. /*!
  149.   return codeword number from two combined intra prediction blocks
  150. */
  152. const int IPRED_ORDER[6][6]=
  153. {
  154.   { 0, 2, 3, 9,10,20},
  155.   { 1, 4, 8,11,19,21},
  156.   { 5, 7,12,18,22,29},
  157.   { 6,13,17,23,28,30},
  158.   {14,16,24,27,31,34},
  159.   {15,25,26,32,33,35},
  160. };
  162. extern int JQ[32][2];
  163. extern int QP2QUANT[32];
  165. #endif