theora-old/lib/pp.h

   1 /********************************************************************
   2  *                                                                  *
   3  * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE.   *
   4  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
   5  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
   6  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
   7  *                                                                  *
   8  * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2003                *
   9  * by the Xiph.Org Foundation http://www.xiph.org/                  *
  10  *                                                                  *
  11  ********************************************************************
  12
  13   function:
  14   last mod: $Id$
  15
  16  ********************************************************************/
  17
  18 /* Constants. */
  19 #define INTERNAL_BLOCK_HEIGHT   8
  20 #define INTERNAL_BLOCK_WIDTH    8
  21
  22
  23 /* NEW Line search values. */
  24 #define UP      0
  25 #define DOWN    1
  26 #define LEFT    2
  27 #define RIGHT   3
  28
  29 #define FIRST_ROW           0
  30 #define NOT_EDGE_ROW        1
  31 #define LAST_ROW            2
  32
  33 #define YDIFF_CB_ROWS                   (INTERNAL_BLOCK_HEIGHT * 3)
  34 #define CHLOCALS_CB_ROWS                (INTERNAL_BLOCK_HEIGHT * 3)
  35 #define PMAP_CB_ROWS                    (INTERNAL_BLOCK_HEIGHT * 3)
  36 #define PSCORE_CB_ROWS                  (INTERNAL_BLOCK_HEIGHT * 4)
  37
  38 /* Status values in block coding map */
  39 #define CANDIDATE_BLOCK_LOW                     -2
  40 #define CANDIDATE_BLOCK                         -1
  41 #define BLOCK_NOT_CODED                         0
  42 #define BLOCK_CODED_BAR                         3
  43 #define BLOCK_CODED_SGC                         4
  44 #define BLOCK_CODED_LOW                         4
  45 #define BLOCK_CODED                             5
  46
  47 #define MAX_PREV_FRAMES             16
  48 #define MAX_SEARCH_LINE_LEN                     7