mpeg2enc/mpeg2enc.h

   1 /* mpg2enc.h, defines and types                                             */
   2
   3 /* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */
   4
   5 /*
   6  * Disclaimer of Warranty
   7  *
   8  * These software programs are available to the user without any license fee or
   9  * royalty on an "as is" basis.  The MPEG Software Simulation Group disclaims
  10  * any and all warranties, whether express, implied, or statuary, including any
  11  * implied warranties or merchantability or of fitness for a particular
  12  * purpose.  In no event shall the copyright-holder be liable for any
  13  * incidental, punitive, or consequential damages of any kind whatsoever
  14  * arising from the use of these programs.
  15  *
  16  * This disclaimer of warranty extends to the user of these programs and user's
  17  * customers, employees, agents, transferees, successors, and assigns.
  18  *
  19  * The MPEG Software Simulation Group does not represent or warrant that the
  20  * programs furnished hereunder are free of infringement of any third-party
  21  * patents.
  22  *
  23  * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
  24  * are subject to royalty fees to patent holders.  Many of these patents are
  25  * general enough such that they are unavoidable regardless of implementation
  26  * design.
  27  *
  28  */
  29
  30 #ifndef MPEG2ENC_H
  31 #define MPEG2ENC_H
  32
  33 #define PICTURE_START_CODE 0x100L
  34 #define SLICE_MIN_START    0x101L
  35 #define SLICE_MAX_START    0x1AFL
  36 #define USER_START_CODE    0x1B2L
  37 #define SEQ_START_CODE     0x1B3L
  38 #define EXT_START_CODE     0x1B5L
  39 #define SEQ_END_CODE       0x1B7L
  40 #define GOP_START_CODE     0x1B8L
  41 #define ISO_END_CODE       0x1B9L
  42 #define PACK_START_CODE    0x1BAL
  43 #define SYSTEM_START_CODE  0x1BBL
  44
  45 /* picture coding type */
  46 #define I_TYPE 1
  47 #define P_TYPE 2
  48 #define B_TYPE 3
  49 #define D_TYPE 4
  50
  51 /* picture structure */
  52 #define TOP_FIELD     1
  53 #define BOTTOM_FIELD  2
  54 #define FRAME_PICTURE 3
  55
  56 /* macroblock type */
  57 #define MB_INTRA    1
  58 #define MB_PATTERN  2
  59 #define MB_BACKWARD 4
  60 #define MB_FORWARD  8
  61 #define MB_QUANT    16
  62
  63 /* motion_type */
  64 #define MC_FIELD 1
  65 #define MC_FRAME 2
  66 #define MC_16X8  2
  67 #define MC_DMV   3
  68
  69 /* mv_format */
  70 #define MV_FIELD 0
  71 #define MV_FRAME 1
  72
  73 /* chroma_format */
  74 #define CHROMA420 1
  75 #define CHROMA422 2
  76 #define CHROMA444 3
  77
  78 /* extension start code IDs */
  79
  80 #define SEQ_ID       1
  81 #define DISP_ID      2
  82 #define QUANT_ID     3
  83 #define SEQSCAL_ID   5
  84 #define PANSCAN_ID   7
  85 #define CODING_ID    8
  86 #define SPATSCAL_ID  9
  87 #define TEMPSCAL_ID 10
  88
  89 /* inputtype */
  90 #define T_Y_U_V 0
  91 #define T_YUV   1
  92 #define T_PPM   2
  93 #define T_QUICKTIME 3
  94 #define T_MPEG 4
  95 #define T_STDIN 5
  96 #define T_BUFFERS 6
  97
  98 #define BUFFER_ALIGN 16
  99
 100 /* macroblock information */
 101 struct mbinfo {
 102         int mb_type; /* intra/forward/backward/interpolated */
 103         int motion_type; /* frame/field/16x8/dual_prime */
 104         int dct_type; /* field/frame DCT */
 105         int mquant; /* quantization parameter */
 106         int cbp; /* coded block pattern */
 107         int skipped; /* skipped macroblock */
 108         int MV[2][2][2]; /* motion vectors */
 109         int mv_field_sel[2][2]; /* motion vertical field select */
 110         int dmvector[2]; /* dual prime vectors */
 111         double act; /* activity measure */
 112         int i_act;  /* Activity measure if intra coded (I/P-frame) */
 113         int p_act;  /* Activity measure for *forward* prediction (P-frame) */
 114         int b_act;      /* Activity measure if bi-directionally coded (B-frame) */
 115         int var;        /* Macroblock luminance variance (measure of activity) */
 116         short (*dctblocks)[64];
 117 };
 118
 119 /* motion data */
 120 struct motion_data {
 121   int forw_hor_f_code,forw_vert_f_code; /* vector range */
 122   int sxf,syf; /* search range */
 123   int back_hor_f_code,back_vert_f_code;
 124   int sxb,syb;
 125 };
 126
 127
 128
 129
 130 #endif