src/gallium/include/pipe/p_video_state.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Younes Manton.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef PIPE_VIDEO_STATE_H
  29 #define PIPE_VIDEO_STATE_H
  30
  31 #include "pipe/p_defines.h"
  32 #include "pipe/p_format.h"
  33 #include "pipe/p_state.h"
  34 #include "pipe/p_screen.h"
  35 #include "util/u_inlines.h"
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 struct pipe_video_rect
  42 {
  43    unsigned x, y, w, h;
  44 };
  45
  46 /*
  47  * see table 6-12 in the spec
  48  */
  49 enum pipe_mpeg12_picture_coding_type
  50 {
  51    PIPE_MPEG12_PICTURE_CODING_TYPE_I = 0x01,
  52    PIPE_MPEG12_PICTURE_CODING_TYPE_P = 0x02,
  53    PIPE_MPEG12_PICTURE_CODING_TYPE_B = 0x03,
  54    PIPE_MPEG12_PICTURE_CODING_TYPE_D = 0x04
  55 };
  56
  57 /*
  58  * see table 6-14 in the spec
  59  */
  60 enum pipe_mpeg12_picture_structure
  61 {
  62    PIPE_MPEG12_PICTURE_STRUCTURE_RESERVED = 0x00,
  63    PIPE_MPEG12_PICTURE_STRUCTURE_FIELD_TOP = 0x01,
  64    PIPE_MPEG12_PICTURE_STRUCTURE_FIELD_BOTTOM = 0x02,
  65    PIPE_MPEG12_PICTURE_STRUCTURE_FRAME = 0x03
  66 };
  67
  68 /*
  69  * flags for macroblock_type, see section 6.3.17.1 in the spec
  70  */
  71 enum pipe_mpeg12_macroblock_type
  72 {
  73    PIPE_MPEG12_MB_TYPE_QUANT = 0x01,
  74    PIPE_MPEG12_MB_TYPE_MOTION_FORWARD = 0x02,
  75    PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD = 0x04,
  76    PIPE_MPEG12_MB_TYPE_PATTERN = 0x08,
  77    PIPE_MPEG12_MB_TYPE_INTRA = 0x10
  78 };
  79
  80 /*
  81  * flags for motion_type, see table 6-17 and 6-18 in the spec
  82  */
  83 enum pipe_mpeg12_motion_type
  84 {
  85    PIPE_MPEG12_MO_TYPE_RESERVED = 0x00,
  86    PIPE_MPEG12_MO_TYPE_FIELD = 0x01,
  87    PIPE_MPEG12_MO_TYPE_FRAME = 0x02,
  88    PIPE_MPEG12_MO_TYPE_16x8 = 0x02,
  89    PIPE_MPEG12_MO_TYPE_DUAL_PRIME = 0x03
  90 };
  91
  92 /*
  93  * see section 6.3.17.1 and table 6-19 in the spec
  94  */
  95 enum pipe_mpeg12_dct_type
  96 {
  97    PIPE_MPEG12_DCT_TYPE_FRAME = 0,
  98    PIPE_MPEG12_DCT_TYPE_FIELD = 1
  99 };
 100
 101 enum pipe_mpeg12_field_select
 102 {
 103    PIPE_MPEG12_FS_FIRST_FORWARD = 0x01,
 104    PIPE_MPEG12_FS_FIRST_BACKWARD = 0x02,
 105    PIPE_MPEG12_FS_SECOND_FORWARD = 0x04,
 106    PIPE_MPEG12_FS_SECOND_BACKWARD = 0x08
 107 };
 108
 109 struct pipe_picture_desc
 110 {
 111    enum pipe_video_profile profile;
 112 };
 113
 114 struct pipe_quant_matrix
 115 {
 116    enum pipe_video_codec codec;
 117 };
 118
 119 struct pipe_macroblock
 120 {
 121    enum pipe_video_codec codec;
 122 };
 123
 124 struct pipe_mpeg12_picture_desc
 125 {
 126    struct pipe_picture_desc base;
 127
 128    unsigned picture_coding_type;
 129    unsigned picture_structure;
 130    unsigned frame_pred_frame_dct;
 131    unsigned q_scale_type;
 132    unsigned alternate_scan;
 133    unsigned intra_vlc_format;
 134    unsigned concealment_motion_vectors;
 135    unsigned intra_dc_precision;
 136    unsigned f_code[2][2];
 137 };
 138
 139 struct pipe_mpeg12_quant_matrix
 140 {
 141    struct pipe_quant_matrix base;
 142
 143    const uint8_t *intra_matrix;
 144    const uint8_t *non_intra_matrix;
 145 };
 146
 147 struct pipe_mpeg12_macroblock
 148 {
 149    struct pipe_macroblock base;
 150
 151    /* see section 6.3.17 in the spec */
 152    unsigned short x, y;
 153
 154    /* see section 6.3.17.1 in the spec */
 155    unsigned char macroblock_type;
 156
 157    union {
 158       struct {
 159          /* see table 6-17 in the spec */
 160          unsigned int frame_motion_type:2;
 161
 162          /* see table 6-18 in the spec */
 163          unsigned int field_motion_type:2;
 164
 165          /* see table 6-19 in the spec */
 166          unsigned int dct_type:1;
 167       } bits;
 168       unsigned int value;
 169    } macroblock_modes;
 170
 171     /* see section 6.3.17.2 in the spec */
 172    unsigned char motion_vertical_field_select;
 173
 174    /* see Table 7-7 in the spec */
 175    short PMV[2][2][2];
 176
 177    /* see figure 6.10-12 in the spec */
 178    unsigned short coded_block_pattern;
 179
 180    /* see figure 6.10-12 in the spec */
 181    short *blocks;
 182
 183    /* Number of skipped macroblocks after this macroblock */
 184    unsigned short num_skipped_macroblocks;
 185 };
 186
 187 #ifdef __cplusplus
 188 }
 189 #endif
 190
 191 #endif /* PIPE_VIDEO_STATE_H */