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 enum pipe_mpeg12_picture_type
  47 {
  48    PIPE_MPEG12_PICTURE_TYPE_FIELD_TOP,
  49    PIPE_MPEG12_PICTURE_TYPE_FIELD_BOTTOM,
  50    PIPE_MPEG12_PICTURE_TYPE_FRAME
  51 };
  52
  53 /*
  54  * flags for macroblock_type, see section 6.3.17.1 in the spec
  55  */
  56 enum pipe_mpeg12_macroblock_type
  57 {
  58    PIPE_MPEG12_MB_TYPE_QUANT = 0x01,
  59    PIPE_MPEG12_MB_TYPE_MOTION_FORWARD = 0x02,
  60    PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD = 0x04,
  61    PIPE_MPEG12_MB_TYPE_PATTERN = 0x08,
  62    PIPE_MPEG12_MB_TYPE_INTRA = 0x10
  63 };
  64
  65 /*
  66  * flags for motion_type, see table 6-17 and 6-18 in the spec
  67  */
  68 enum pipe_mpeg12_motion_type
  69 {
  70    PIPE_MPEG12_MO_TYPE_RESERVED = 0x00,
  71    PIPE_MPEG12_MO_TYPE_FIELD = 0x01,
  72    PIPE_MPEG12_MO_TYPE_FRAME = 0x02,
  73    PIPE_MPEG12_MO_TYPE_16x8 = 0x02,
  74    PIPE_MPEG12_MO_TYPE_DUAL_PRIME = 0x03
  75 };
  76
  77 /*
  78  * see section 6.3.17.1 and table 6-19 in the spec
  79  */
  80 enum pipe_mpeg12_dct_type
  81 {
  82    PIPE_MPEG12_DCT_TYPE_FRAME = 0,
  83    PIPE_MPEG12_DCT_TYPE_FIELD = 1
  84 };
  85
  86 enum pipe_mpeg12_field_select
  87 {
  88    PIPE_MPEG12_FS_FIRST_FORWARD = 0x01,
  89    PIPE_MPEG12_FS_FIRST_BACKWARD = 0x02,
  90    PIPE_MPEG12_FS_SECOND_FORWARD = 0x04,
  91    PIPE_MPEG12_FS_SECOND_BACKWARD = 0x08
  92 };
  93
  94 struct pipe_picture_desc
  95 {
  96    enum pipe_video_profile profile;
  97 };
  98
  99 struct pipe_macroblock
 100 {
 101    enum pipe_video_codec codec;
 102 };
 103
 104 struct pipe_mpeg12_picture_desc
 105 {
 106    struct pipe_picture_desc base;
 107
 108    unsigned picture_coding_type;
 109    unsigned picture_structure;
 110    unsigned frame_pred_frame_dct;
 111    unsigned q_scale_type;
 112    unsigned alternate_scan;
 113    unsigned intra_vlc_format;
 114    unsigned concealment_motion_vectors;
 115    unsigned f_code[2][2];
 116 };
 117
 118 struct pipe_mpeg12_macroblock
 119 {
 120    struct pipe_macroblock base;
 121
 122    /* see section 6.3.17 in the spec */
 123    unsigned short x, y;
 124
 125    /* see section 6.3.17.1 in the spec */
 126    unsigned char macroblock_type;
 127
 128    union {
 129       struct {
 130          /* see table 6-17 in the spec */
 131          unsigned int frame_motion_type:2;
 132
 133          /* see table 6-18 in the spec */
 134          unsigned int field_motion_type:2;
 135
 136          /* see table 6-19 in the spec */
 137          unsigned int dct_type:1;
 138       } bits;
 139       unsigned int value;
 140    } macroblock_modes;
 141
 142     /* see section 6.3.17.2 in the spec */
 143    unsigned char motion_vertical_field_select;
 144
 145    /* see Table 7-7 in the spec */
 146    short PMV[2][2][2];
 147
 148    /* see figure 6.10-12 in the spec */
 149    unsigned short coded_block_pattern;
 150
 151    /* see figure 6.10-12 in the spec */
 152    short *blocks;
 153
 154    /* Number of skipped macroblocks after this macroblock */
 155    unsigned short num_skipped_macroblocks;
 156 };
 157
 158 #ifdef __cplusplus
 159 }
 160 #endif
 161
 162 #endif /* PIPE_VIDEO_STATE_H */