ref: 8b263798d0ac04a7858fb1e52de80ca2bf09ece2
dir: /vp9/common/vp9_enums.h/
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VP9_COMMON_VP9_ENUMS_H_
#define VP9_COMMON_VP9_ENUMS_H_
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MI_SIZE_LOG2 3
#define MI_BLOCK_SIZE_LOG2 (6 - MI_SIZE_LOG2) // 64 = 2^6
#define MI_SIZE (1 << MI_SIZE_LOG2) // pixels per mi-unit
#define MI_BLOCK_SIZE (1 << MI_BLOCK_SIZE_LOG2) // mi-units per max block
#define MI_MASK (MI_BLOCK_SIZE - 1)
// Bitstream profiles indicated by 2-3 bits in the uncompressed header.
// 00: Profile 0. 8-bit 4:2:0 only.
// 10: Profile 1. 8-bit 4:4:4, 4:2:2, and 4:4:0.
// 01: Profile 2. 10-bit and 12-bit color only, with 4:2:0 sampling.
// 110: Profile 3. 10-bit and 12-bit color only, with 4:2:2/4:4:4/4:4:0
// sampling.
// 111: Undefined profile.
typedef enum BITSTREAM_PROFILE {
PROFILE_0,
PROFILE_1,
PROFILE_2,
PROFILE_3,
MAX_PROFILES
} BITSTREAM_PROFILE;
#define BLOCK_4X4 0
#define BLOCK_4X8 1
#define BLOCK_8X4 2
#define BLOCK_8X8 3
#define BLOCK_8X16 4
#define BLOCK_16X8 5
#define BLOCK_16X16 6
#define BLOCK_16X32 7
#define BLOCK_32X16 8
#define BLOCK_32X32 9
#define BLOCK_32X64 10
#define BLOCK_64X32 11
#define BLOCK_64X64 12
#define BLOCK_SIZES 13
#define BLOCK_INVALID BLOCK_SIZES
typedef uint8_t BLOCK_SIZE;
typedef enum PARTITION_TYPE {
PARTITION_NONE,
PARTITION_HORZ,
PARTITION_VERT,
PARTITION_SPLIT,
PARTITION_TYPES,
PARTITION_INVALID = PARTITION_TYPES
} PARTITION_TYPE;
typedef char PARTITION_CONTEXT;
#define PARTITION_PLOFFSET 4 // number of probability models per block size
#define PARTITION_CONTEXTS (4 * PARTITION_PLOFFSET)
// block transform size
typedef uint8_t TX_SIZE;
#define TX_4X4 ((TX_SIZE)0) // 4x4 transform
#define TX_8X8 ((TX_SIZE)1) // 8x8 transform
#define TX_16X16 ((TX_SIZE)2) // 16x16 transform
#define TX_32X32 ((TX_SIZE)3) // 32x32 transform
#define TX_SIZES ((TX_SIZE)4)
// frame transform mode
typedef enum {
ONLY_4X4 = 0, // only 4x4 transform used
ALLOW_8X8 = 1, // allow block transform size up to 8x8
ALLOW_16X16 = 2, // allow block transform size up to 16x16
ALLOW_32X32 = 3, // allow block transform size up to 32x32
TX_MODE_SELECT = 4, // transform specified for each block
TX_MODES = 5,
} TX_MODE;
typedef enum {
DCT_DCT = 0, // DCT in both horizontal and vertical
ADST_DCT = 1, // ADST in vertical, DCT in horizontal
DCT_ADST = 2, // DCT in vertical, ADST in horizontal
ADST_ADST = 3, // ADST in both directions
TX_TYPES = 4
} TX_TYPE;
typedef enum {
VP9_LAST_FLAG = 1 << 0,
VP9_GOLD_FLAG = 1 << 1,
VP9_ALT_FLAG = 1 << 2,
} VP9_REFFRAME;
typedef enum { PLANE_TYPE_Y = 0, PLANE_TYPE_UV = 1, PLANE_TYPES } PLANE_TYPE;
#define DC_PRED 0 // Average of above and left pixels
#define V_PRED 1 // Vertical
#define H_PRED 2 // Horizontal
#define D45_PRED 3 // Directional 45 deg = round(arctan(1/1) * 180/pi)
#define D135_PRED 4 // Directional 135 deg = 180 - 45
#define D117_PRED 5 // Directional 117 deg = 180 - 63
#define D153_PRED 6 // Directional 153 deg = 180 - 27
#define D207_PRED 7 // Directional 207 deg = 180 + 27
#define D63_PRED 8 // Directional 63 deg = round(arctan(2/1) * 180/pi)
#define TM_PRED 9 // True-motion
#define NEARESTMV 10
#define NEARMV 11
#define ZEROMV 12
#define NEWMV 13
#define MB_MODE_COUNT 14
typedef uint8_t PREDICTION_MODE;
#define INTRA_MODES (TM_PRED + 1)
#define INTER_MODES (1 + NEWMV - NEARESTMV)
#define SKIP_CONTEXTS 3
#define INTER_MODE_CONTEXTS 7
/* Segment Feature Masks */
#define MAX_MV_REF_CANDIDATES 2
#define INTRA_INTER_CONTEXTS 4
#define COMP_INTER_CONTEXTS 5
#define REF_CONTEXTS 5
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP9_COMMON_VP9_ENUMS_H_