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1 /*
2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef VP9_COMMON_VP9_ENUMS_H_
12 #define VP9_COMMON_VP9_ENUMS_H_
13 
14 #include "./vpx_config.h"
15 
16 #ifdef __cplusplus
17 extern "C" {
18 #endif
19 
20 #define MI_SIZE_LOG2 3
21 #define MI_BLOCK_SIZE_LOG2 (6 - MI_SIZE_LOG2)  // 64 = 2^6
22 
23 #define MI_SIZE (1 << MI_SIZE_LOG2)  // pixels per mi-unit
24 #define MI_BLOCK_SIZE (1 << MI_BLOCK_SIZE_LOG2)  // mi-units per max block
25 
26 #define MI_MASK (MI_BLOCK_SIZE - 1)
27 
28 
29 typedef enum BLOCK_SIZE {
30   BLOCK_4X4,
31   BLOCK_4X8,
32   BLOCK_8X4,
33   BLOCK_8X8,
34   BLOCK_8X16,
35   BLOCK_16X8,
36   BLOCK_16X16,
37   BLOCK_16X32,
38   BLOCK_32X16,
39   BLOCK_32X32,
40   BLOCK_32X64,
41   BLOCK_64X32,
42   BLOCK_64X64,
43   BLOCK_SIZES,
44   BLOCK_INVALID = BLOCK_SIZES
45 } BLOCK_SIZE;
46 
47 typedef enum PARTITION_TYPE {
48   PARTITION_NONE,
49   PARTITION_HORZ,
50   PARTITION_VERT,
51   PARTITION_SPLIT,
52   PARTITION_TYPES,
53   PARTITION_INVALID = PARTITION_TYPES
54 } PARTITION_TYPE;
55 
56 #define PARTITION_PLOFFSET   4  // number of probability models per block size
57 #define PARTITION_CONTEXTS (4 * PARTITION_PLOFFSET)
58 
59 // block transform size
60 typedef enum {
61   TX_4X4 = 0,                      // 4x4 transform
62   TX_8X8 = 1,                      // 8x8 transform
63   TX_16X16 = 2,                    // 16x16 transform
64   TX_32X32 = 3,                    // 32x32 transform
65   TX_SIZES
66 } TX_SIZE;
67 
68 // frame transform mode
69 typedef enum {
70   ONLY_4X4            = 0,        // only 4x4 transform used
71   ALLOW_8X8           = 1,        // allow block transform size up to 8x8
72   ALLOW_16X16         = 2,        // allow block transform size up to 16x16
73   ALLOW_32X32         = 3,        // allow block transform size up to 32x32
74   TX_MODE_SELECT      = 4,        // transform specified for each block
75   TX_MODES            = 5,
76 } TX_MODE;
77 
78 typedef enum {
79   DCT_DCT   = 0,                      // DCT  in both horizontal and vertical
80   ADST_DCT  = 1,                      // ADST in vertical, DCT in horizontal
81   DCT_ADST  = 2,                      // DCT  in vertical, ADST in horizontal
82   ADST_ADST = 3,                      // ADST in both directions
83   TX_TYPES = 4
84 } TX_TYPE;
85 
86 typedef enum {
87   UNKNOWN    = 0,
88   BT_601     = 1,  // YUV
89   BT_709     = 2,  // YUV
90   SMPTE_170  = 3,  // YUV
91   SMPTE_240  = 4,  // YUV
92   RESERVED_1 = 5,
93   RESERVED_2 = 6,
94   SRGB       = 7   // RGB
95 } COLOR_SPACE;
96 
97 typedef enum {
98   VP9_LAST_FLAG = 1 << 0,
99   VP9_GOLD_FLAG = 1 << 1,
100   VP9_ALT_FLAG = 1 << 2,
101 } VP9_REFFRAME;
102 
103 #ifdef __cplusplus
104 }  // extern "C"
105 #endif
106 
107 #endif  // VP9_COMMON_VP9_ENUMS_H_
108