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| -rw-r--r-- | third_party/aom/av1/common/enums.h | 619 |
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diff --git a/third_party/aom/av1/common/enums.h b/third_party/aom/av1/common/enums.h new file mode 100644 index 0000000000..869c06ef2f --- /dev/null +++ b/third_party/aom/av1/common/enums.h @@ -0,0 +1,619 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#ifndef AOM_AV1_COMMON_ENUMS_H_ +#define AOM_AV1_COMMON_ENUMS_H_ + +#include "config/aom_config.h" + +#include "aom/aom_codec.h" +#include "aom/aom_integer.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#undef MAX_SB_SIZE + +// Max superblock size +#define MAX_SB_SIZE_LOG2 7 +#define MAX_SB_SIZE (1 << MAX_SB_SIZE_LOG2) +#define MAX_SB_SQUARE (MAX_SB_SIZE * MAX_SB_SIZE) + +// Min superblock size +#define MIN_SB_SIZE_LOG2 6 + +// Pixels per Mode Info (MI) unit +#define MI_SIZE_LOG2 2 +#define MI_SIZE (1 << MI_SIZE_LOG2) + +// MI-units per max superblock (MI Block - MIB) +#define MAX_MIB_SIZE_LOG2 (MAX_SB_SIZE_LOG2 - MI_SIZE_LOG2) +#define MAX_MIB_SIZE (1 << MAX_MIB_SIZE_LOG2) + +// MI-units per min superblock +#define MIN_MIB_SIZE_LOG2 (MIN_SB_SIZE_LOG2 - MI_SIZE_LOG2) + +// Mask to extract MI offset within max MIB +#define MAX_MIB_MASK (MAX_MIB_SIZE - 1) + +// Maximum number of tile rows and tile columns +#define MAX_TILE_ROWS 64 +#define MAX_TILE_COLS 64 + +#define MAX_VARTX_DEPTH 2 + +#define MI_SIZE_64X64 (64 >> MI_SIZE_LOG2) +#define MI_SIZE_128X128 (128 >> MI_SIZE_LOG2) + +#define MAX_PALETTE_SQUARE (64 * 64) +// Maximum number of colors in a palette. +#define PALETTE_MAX_SIZE 8 +// Minimum number of colors in a palette. +#define PALETTE_MIN_SIZE 2 + +#define FRAME_OFFSET_BITS 5 +#define MAX_FRAME_DISTANCE ((1 << FRAME_OFFSET_BITS) - 1) + +#define REF_FRAMES_LOG2 3 +#define REF_FRAMES (1 << REF_FRAMES_LOG2) + +// 4 scratch frames for the new frames to support a maximum of 4 cores decoding +// in parallel, 3 for scaled references on the encoder. +// TODO(hkuang): Add ondemand frame buffers instead of hardcoding the number +// of framebuffers. +// TODO(jkoleszar): These 3 extra references could probably come from the +// normal reference pool. +#define FRAME_BUFFERS (REF_FRAMES + 7) + +// 4 frame filter levels: y plane vertical, y plane horizontal, +// u plane, and v plane +#define FRAME_LF_COUNT 4 +#define DEFAULT_DELTA_LF_MULTI 0 +#define MAX_MODE_LF_DELTAS 2 + +#define DIST_PRECISION_BITS 4 +#define DIST_PRECISION (1 << DIST_PRECISION_BITS) // 16 + +// TODO(chengchen): Temporal flag serve as experimental flag for WIP +// bitmask construction. +// Shall be removed when bitmask code is completely checkedin +#define LOOP_FILTER_BITMASK 0 + +#define PROFILE_BITS 3 +// The following three profiles are currently defined. +// Profile 0. 8-bit and 10-bit 4:2:0 and 4:0:0 only. +// Profile 1. 8-bit and 10-bit 4:4:4 +// Profile 2. 8-bit and 10-bit 4:2:2 +// 12-bit 4:0:0, 4:2:2 and 4:4:4 +// Since we have three bits for the profiles, it can be extended later. +typedef enum BITSTREAM_PROFILE { + PROFILE_0, + PROFILE_1, + PROFILE_2, + MAX_PROFILES, +} BITSTREAM_PROFILE; + +#define LEVEL_MAJOR_BITS 3 +#define LEVEL_MINOR_BITS 2 +#define LEVEL_BITS (LEVEL_MAJOR_BITS + LEVEL_MINOR_BITS) + +#define LEVEL_MAJOR_MIN 2 +#define LEVEL_MAJOR_MAX ((1 << LEVEL_MAJOR_BITS) - 1 + LEVEL_MAJOR_MIN) +#define LEVEL_MINOR_MIN 0 +#define LEVEL_MINOR_MAX ((1 << LEVEL_MINOR_BITS) - 1) + +#define OP_POINTS_CNT_MINUS_1_BITS 5 +#define OP_POINTS_IDC_BITS 12 + +// Note: Some enums use the attribute 'packed' to use smallest possible integer +// type, so that we can save memory when they are used in structs/arrays. + +typedef enum ATTRIBUTE_PACKED { + BLOCK_4X4, + BLOCK_4X8, + BLOCK_8X4, + BLOCK_8X8, + BLOCK_8X16, + BLOCK_16X8, + BLOCK_16X16, + BLOCK_16X32, + BLOCK_32X16, + BLOCK_32X32, + BLOCK_32X64, + BLOCK_64X32, + BLOCK_64X64, + BLOCK_64X128, + BLOCK_128X64, + BLOCK_128X128, + BLOCK_4X16, + BLOCK_16X4, + BLOCK_8X32, + BLOCK_32X8, + BLOCK_16X64, + BLOCK_64X16, + BLOCK_SIZES_ALL, + BLOCK_SIZES = BLOCK_4X16, + BLOCK_INVALID = 255, + BLOCK_LARGEST = (BLOCK_SIZES - 1) +} BLOCK_SIZE; + +// 4X4, 8X8, 16X16, 32X32, 64X64, 128X128 +#define SQR_BLOCK_SIZES 6 + +typedef enum ATTRIBUTE_PACKED { + PARTITION_NONE, + PARTITION_HORZ, + PARTITION_VERT, + PARTITION_SPLIT, + PARTITION_HORZ_A, // HORZ split and the top partition is split again + PARTITION_HORZ_B, // HORZ split and the bottom partition is split again + PARTITION_VERT_A, // VERT split and the left partition is split again + PARTITION_VERT_B, // VERT split and the right partition is split again + PARTITION_HORZ_4, // 4:1 horizontal partition + PARTITION_VERT_4, // 4:1 vertical partition + EXT_PARTITION_TYPES, + PARTITION_TYPES = PARTITION_SPLIT + 1, + PARTITION_INVALID = 255 +} PARTITION_TYPE; + +typedef char PARTITION_CONTEXT; +#define PARTITION_PLOFFSET 4 // number of probability models per block size +#define PARTITION_BLOCK_SIZES 5 +#define PARTITION_CONTEXTS (PARTITION_BLOCK_SIZES * PARTITION_PLOFFSET) + +// block transform size +#if defined(_MSC_VER) +typedef uint8_t TX_SIZE; +enum ATTRIBUTE_PACKED { +#else +typedef enum ATTRIBUTE_PACKED { +#endif + TX_4X4, // 4x4 transform + TX_8X8, // 8x8 transform + TX_16X16, // 16x16 transform + TX_32X32, // 32x32 transform + TX_64X64, // 64x64 transform + TX_4X8, // 4x8 transform + TX_8X4, // 8x4 transform + TX_8X16, // 8x16 transform + TX_16X8, // 16x8 transform + TX_16X32, // 16x32 transform + TX_32X16, // 32x16 transform + TX_32X64, // 32x64 transform + TX_64X32, // 64x32 transform + TX_4X16, // 4x16 transform + TX_16X4, // 16x4 transform + TX_8X32, // 8x32 transform + TX_32X8, // 32x8 transform + TX_16X64, // 16x64 transform + TX_64X16, // 64x16 transform + TX_SIZES_ALL, // Includes rectangular transforms + TX_SIZES = TX_4X8, // Does NOT include rectangular transforms + TX_SIZES_LARGEST = TX_64X64, + TX_INVALID = 255 // Invalid transform size +#if defined(_MSC_VER) +}; +#else +} TX_SIZE; +#endif + +#define TX_SIZE_LUMA_MIN (TX_4X4) +/* We don't need to code a transform size unless the allowed size is at least + one more than the minimum. */ +#define TX_SIZE_CTX_MIN (TX_SIZE_LUMA_MIN + 1) + +// Maximum tx_size categories +#define MAX_TX_CATS (TX_SIZES - TX_SIZE_CTX_MIN) +#define MAX_TX_DEPTH 2 + +#define MAX_TX_SIZE_LOG2 (6) +#define MAX_TX_SIZE (1 << MAX_TX_SIZE_LOG2) +#define MIN_TX_SIZE_LOG2 2 +#define MIN_TX_SIZE (1 << MIN_TX_SIZE_LOG2) +#define MAX_TX_SQUARE (MAX_TX_SIZE * MAX_TX_SIZE) + +// Pad 4 extra columns to remove horizontal availability check. +#define TX_PAD_HOR_LOG2 2 +#define TX_PAD_HOR 4 +// Pad 6 extra rows (2 on top and 4 on bottom) to remove vertical availability +// check. +#define TX_PAD_TOP 2 +#define TX_PAD_BOTTOM 4 +#define TX_PAD_VER (TX_PAD_TOP + TX_PAD_BOTTOM) +// Pad 16 extra bytes to avoid reading overflow in SIMD optimization. +#define TX_PAD_END 16 +#define TX_PAD_2D ((32 + TX_PAD_HOR) * (32 + TX_PAD_VER) + TX_PAD_END) + +// Number of maxium size transform blocks in the maximum size superblock +#define MAX_TX_BLOCKS_IN_MAX_SB_LOG2 ((MAX_SB_SIZE_LOG2 - MAX_TX_SIZE_LOG2) * 2) +#define MAX_TX_BLOCKS_IN_MAX_SB (1 << MAX_TX_BLOCKS_IN_MAX_SB_LOG2) + +// frame transform mode +typedef enum ATTRIBUTE_PACKED { + ONLY_4X4, // use only 4x4 transform + TX_MODE_LARGEST, // transform size is the largest possible for pu size + TX_MODE_SELECT, // transform specified for each block + TX_MODES, +} TX_MODE; + +// 1D tx types +typedef enum ATTRIBUTE_PACKED { + DCT_1D, + ADST_1D, + FLIPADST_1D, + IDTX_1D, + TX_TYPES_1D, +} TX_TYPE_1D; + +typedef enum ATTRIBUTE_PACKED { + DCT_DCT, // DCT in both horizontal and vertical + ADST_DCT, // ADST in vertical, DCT in horizontal + DCT_ADST, // DCT in vertical, ADST in horizontal + ADST_ADST, // ADST in both directions + FLIPADST_DCT, + DCT_FLIPADST, + FLIPADST_FLIPADST, + ADST_FLIPADST, + FLIPADST_ADST, + IDTX, + V_DCT, + H_DCT, + V_ADST, + H_ADST, + V_FLIPADST, + H_FLIPADST, + TX_TYPES, +} TX_TYPE; + +typedef enum ATTRIBUTE_PACKED { + REG_REG, + REG_SMOOTH, + REG_SHARP, + SMOOTH_REG, + SMOOTH_SMOOTH, + SMOOTH_SHARP, + SHARP_REG, + SHARP_SMOOTH, + SHARP_SHARP, +} DUAL_FILTER_TYPE; + +typedef enum ATTRIBUTE_PACKED { + // DCT only + EXT_TX_SET_DCTONLY, + // DCT + Identity only + EXT_TX_SET_DCT_IDTX, + // Discrete Trig transforms w/o flip (4) + Identity (1) + EXT_TX_SET_DTT4_IDTX, + // Discrete Trig transforms w/o flip (4) + Identity (1) + 1D Hor/vert DCT (2) + EXT_TX_SET_DTT4_IDTX_1DDCT, + // Discrete Trig transforms w/ flip (9) + Identity (1) + 1D Hor/Ver DCT (2) + EXT_TX_SET_DTT9_IDTX_1DDCT, + // Discrete Trig transforms w/ flip (9) + Identity (1) + 1D Hor/Ver (6) + EXT_TX_SET_ALL16, + EXT_TX_SET_TYPES +} TxSetType; + +#define IS_2D_TRANSFORM(tx_type) (tx_type < IDTX) + +#define EXT_TX_SIZES 4 // number of sizes that use extended transforms +#define EXT_TX_SETS_INTER 4 // Sets of transform selections for INTER +#define EXT_TX_SETS_INTRA 3 // Sets of transform selections for INTRA + +typedef enum ATTRIBUTE_PACKED { + AOM_LAST_FLAG = 1 << 0, + AOM_LAST2_FLAG = 1 << 1, + AOM_LAST3_FLAG = 1 << 2, + AOM_GOLD_FLAG = 1 << 3, + AOM_BWD_FLAG = 1 << 4, + AOM_ALT2_FLAG = 1 << 5, + AOM_ALT_FLAG = 1 << 6, + AOM_REFFRAME_ALL = (1 << 7) - 1 +} AOM_REFFRAME; + +typedef enum ATTRIBUTE_PACKED { + UNIDIR_COMP_REFERENCE, + BIDIR_COMP_REFERENCE, + COMP_REFERENCE_TYPES, +} COMP_REFERENCE_TYPE; + +typedef enum ATTRIBUTE_PACKED { + PLANE_TYPE_Y, + PLANE_TYPE_UV, + PLANE_TYPES +} PLANE_TYPE; + +#define CFL_ALPHABET_SIZE_LOG2 4 +#define CFL_ALPHABET_SIZE (1 << CFL_ALPHABET_SIZE_LOG2) +#define CFL_MAGS_SIZE ((2 << CFL_ALPHABET_SIZE_LOG2) + 1) +#define CFL_IDX_U(idx) (idx >> CFL_ALPHABET_SIZE_LOG2) +#define CFL_IDX_V(idx) (idx & (CFL_ALPHABET_SIZE - 1)) + +typedef enum ATTRIBUTE_PACKED { + CFL_PRED_U, + CFL_PRED_V, + CFL_PRED_PLANES +} CFL_PRED_TYPE; + +typedef enum ATTRIBUTE_PACKED { + CFL_SIGN_ZERO, + CFL_SIGN_NEG, + CFL_SIGN_POS, + CFL_SIGNS +} CFL_SIGN_TYPE; + +typedef enum ATTRIBUTE_PACKED { + CFL_DISALLOWED, + CFL_ALLOWED, + CFL_ALLOWED_TYPES +} CFL_ALLOWED_TYPE; + +// CFL_SIGN_ZERO,CFL_SIGN_ZERO is invalid +#define CFL_JOINT_SIGNS (CFL_SIGNS * CFL_SIGNS - 1) +// CFL_SIGN_U is equivalent to (js + 1) / 3 for js in 0 to 8 +#define CFL_SIGN_U(js) (((js + 1) * 11) >> 5) +// CFL_SIGN_V is equivalent to (js + 1) % 3 for js in 0 to 8 +#define CFL_SIGN_V(js) ((js + 1) - CFL_SIGNS * CFL_SIGN_U(js)) + +// There is no context when the alpha for a given plane is zero. +// So there are 2 fewer contexts than joint signs. +#define CFL_ALPHA_CONTEXTS (CFL_JOINT_SIGNS + 1 - CFL_SIGNS) +#define CFL_CONTEXT_U(js) (js + 1 - CFL_SIGNS) +// Also, the contexts are symmetric under swapping the planes. +#define CFL_CONTEXT_V(js) \ + (CFL_SIGN_V(js) * CFL_SIGNS + CFL_SIGN_U(js) - CFL_SIGNS) + +typedef enum ATTRIBUTE_PACKED { + PALETTE_MAP, + COLOR_MAP_TYPES, +} COLOR_MAP_TYPE; + +typedef enum ATTRIBUTE_PACKED { + TWO_COLORS, + THREE_COLORS, + FOUR_COLORS, + FIVE_COLORS, + SIX_COLORS, + SEVEN_COLORS, + EIGHT_COLORS, + PALETTE_SIZES +} PALETTE_SIZE; + +typedef enum ATTRIBUTE_PACKED { + PALETTE_COLOR_ONE, + PALETTE_COLOR_TWO, + PALETTE_COLOR_THREE, + PALETTE_COLOR_FOUR, + PALETTE_COLOR_FIVE, + PALETTE_COLOR_SIX, + PALETTE_COLOR_SEVEN, + PALETTE_COLOR_EIGHT, + PALETTE_COLORS +} PALETTE_COLOR; + +// Note: All directional predictors must be between V_PRED and D67_PRED (both +// inclusive). +typedef enum ATTRIBUTE_PACKED { + DC_PRED, // Average of above and left pixels + V_PRED, // Vertical + H_PRED, // Horizontal + D45_PRED, // Directional 45 degree + D135_PRED, // Directional 135 degree + D113_PRED, // Directional 113 degree + D157_PRED, // Directional 157 degree + D203_PRED, // Directional 203 degree + D67_PRED, // Directional 67 degree + SMOOTH_PRED, // Combination of horizontal and vertical interpolation + SMOOTH_V_PRED, // Vertical interpolation + SMOOTH_H_PRED, // Horizontal interpolation + PAETH_PRED, // Predict from the direction of smallest gradient + NEARESTMV, + NEARMV, + GLOBALMV, + NEWMV, + // Compound ref compound modes + NEAREST_NEARESTMV, + NEAR_NEARMV, + NEAREST_NEWMV, + NEW_NEARESTMV, + NEAR_NEWMV, + NEW_NEARMV, + GLOBAL_GLOBALMV, + NEW_NEWMV, + MB_MODE_COUNT, + INTRA_MODE_START = DC_PRED, + INTRA_MODE_END = NEARESTMV, + INTRA_MODE_NUM = INTRA_MODE_END - INTRA_MODE_START, + SINGLE_INTER_MODE_START = NEARESTMV, + SINGLE_INTER_MODE_END = NEAREST_NEARESTMV, + SINGLE_INTER_MODE_NUM = SINGLE_INTER_MODE_END - SINGLE_INTER_MODE_START, + COMP_INTER_MODE_START = NEAREST_NEARESTMV, + COMP_INTER_MODE_END = MB_MODE_COUNT, + COMP_INTER_MODE_NUM = COMP_INTER_MODE_END - COMP_INTER_MODE_START, + INTER_MODE_START = NEARESTMV, + INTER_MODE_END = MB_MODE_COUNT, + INTRA_MODES = PAETH_PRED + 1, // PAETH_PRED has to be the last intra mode. + INTRA_INVALID = MB_MODE_COUNT // For uv_mode in inter blocks +} PREDICTION_MODE; + +// TODO(ltrudeau) Do we really want to pack this? +// TODO(ltrudeau) Do we match with PREDICTION_MODE? +typedef enum ATTRIBUTE_PACKED { + UV_DC_PRED, // Average of above and left pixels + UV_V_PRED, // Vertical + UV_H_PRED, // Horizontal + UV_D45_PRED, // Directional 45 degree + UV_D135_PRED, // Directional 135 degree + UV_D113_PRED, // Directional 113 degree + UV_D157_PRED, // Directional 157 degree + UV_D203_PRED, // Directional 203 degree + UV_D67_PRED, // Directional 67 degree + UV_SMOOTH_PRED, // Combination of horizontal and vertical interpolation + UV_SMOOTH_V_PRED, // Vertical interpolation + UV_SMOOTH_H_PRED, // Horizontal interpolation + UV_PAETH_PRED, // Predict from the direction of smallest gradient + UV_CFL_PRED, // Chroma-from-Luma + UV_INTRA_MODES, + UV_MODE_INVALID, // For uv_mode in inter blocks +} UV_PREDICTION_MODE; + +typedef enum ATTRIBUTE_PACKED { + SIMPLE_TRANSLATION, + OBMC_CAUSAL, // 2-sided OBMC + WARPED_CAUSAL, // 2-sided WARPED + MOTION_MODES +} MOTION_MODE; + +typedef enum ATTRIBUTE_PACKED { + II_DC_PRED, + II_V_PRED, + II_H_PRED, + II_SMOOTH_PRED, + INTERINTRA_MODES +} INTERINTRA_MODE; + +typedef enum ATTRIBUTE_PACKED { + COMPOUND_AVERAGE, + COMPOUND_WEDGE, + COMPOUND_DIFFWTD, + COMPOUND_TYPES, +} COMPOUND_TYPE; + +typedef enum ATTRIBUTE_PACKED { + FILTER_DC_PRED, + FILTER_V_PRED, + FILTER_H_PRED, + FILTER_D157_PRED, + FILTER_PAETH_PRED, + FILTER_INTRA_MODES, +} FILTER_INTRA_MODE; + +#define DIRECTIONAL_MODES 8 +#define MAX_ANGLE_DELTA 3 +#define ANGLE_STEP 3 + +#define INTER_MODES (1 + NEWMV - NEARESTMV) + +#define INTER_COMPOUND_MODES (1 + NEW_NEWMV - NEAREST_NEARESTMV) + +#define SKIP_CONTEXTS 3 +#define SKIP_MODE_CONTEXTS 3 + +#define COMP_INDEX_CONTEXTS 6 +#define COMP_GROUP_IDX_CONTEXTS 6 + +#define NMV_CONTEXTS 3 + +#define NEWMV_MODE_CONTEXTS 6 +#define GLOBALMV_MODE_CONTEXTS 2 +#define REFMV_MODE_CONTEXTS 6 +#define DRL_MODE_CONTEXTS 3 + +#define GLOBALMV_OFFSET 3 +#define REFMV_OFFSET 4 + +#define NEWMV_CTX_MASK ((1 << GLOBALMV_OFFSET) - 1) +#define GLOBALMV_CTX_MASK ((1 << (REFMV_OFFSET - GLOBALMV_OFFSET)) - 1) +#define REFMV_CTX_MASK ((1 << (8 - REFMV_OFFSET)) - 1) + +#define COMP_NEWMV_CTXS 5 +#define INTER_MODE_CONTEXTS 8 + +#define DELTA_Q_SMALL 3 +#define DELTA_Q_PROBS (DELTA_Q_SMALL) +#define DEFAULT_DELTA_Q_RES 4 +#define DELTA_LF_SMALL 3 +#define DELTA_LF_PROBS (DELTA_LF_SMALL) +#define DEFAULT_DELTA_LF_RES 2 + +/* Segment Feature Masks */ +#define MAX_MV_REF_CANDIDATES 2 + +#define MAX_REF_MV_STACK_SIZE 8 +#define REF_CAT_LEVEL 640 + +#define INTRA_INTER_CONTEXTS 4 +#define COMP_INTER_CONTEXTS 5 +#define REF_CONTEXTS 3 + +#define COMP_REF_TYPE_CONTEXTS 5 +#define UNI_COMP_REF_CONTEXTS 3 + +#define TXFM_PARTITION_CONTEXTS ((TX_SIZES - TX_8X8) * 6 - 3) +typedef uint8_t TXFM_CONTEXT; + +#define NONE_FRAME -1 +#define INTRA_FRAME 0 +#define LAST_FRAME 1 +#define LAST2_FRAME 2 +#define LAST3_FRAME 3 +#define GOLDEN_FRAME 4 +#define BWDREF_FRAME 5 +#define ALTREF2_FRAME 6 +#define ALTREF_FRAME 7 +#define EXTREF_FRAME REF_FRAMES +#define LAST_REF_FRAMES (LAST3_FRAME - LAST_FRAME + 1) + +#define INTER_REFS_PER_FRAME (ALTREF_FRAME - LAST_FRAME + 1) + +#define FWD_REFS (GOLDEN_FRAME - LAST_FRAME + 1) +#define FWD_RF_OFFSET(ref) (ref - LAST_FRAME) +#define BWD_REFS (ALTREF_FRAME - BWDREF_FRAME + 1) +#define BWD_RF_OFFSET(ref) (ref - BWDREF_FRAME) + +#define SINGLE_REFS (FWD_REFS + BWD_REFS) + +typedef enum ATTRIBUTE_PACKED { + LAST_LAST2_FRAMES, // { LAST_FRAME, LAST2_FRAME } + LAST_LAST3_FRAMES, // { LAST_FRAME, LAST3_FRAME } + LAST_GOLDEN_FRAMES, // { LAST_FRAME, GOLDEN_FRAME } + BWDREF_ALTREF_FRAMES, // { BWDREF_FRAME, ALTREF_FRAME } + LAST2_LAST3_FRAMES, // { LAST2_FRAME, LAST3_FRAME } + LAST2_GOLDEN_FRAMES, // { LAST2_FRAME, GOLDEN_FRAME } + LAST3_GOLDEN_FRAMES, // { LAST3_FRAME, GOLDEN_FRAME } + BWDREF_ALTREF2_FRAMES, // { BWDREF_FRAME, ALTREF2_FRAME } + ALTREF2_ALTREF_FRAMES, // { ALTREF2_FRAME, ALTREF_FRAME } + TOTAL_UNIDIR_COMP_REFS, + // NOTE: UNIDIR_COMP_REFS is the number of uni-directional reference pairs + // that are explicitly signaled. + UNIDIR_COMP_REFS = BWDREF_ALTREF_FRAMES + 1, +} UNIDIR_COMP_REF; + +#define TOTAL_COMP_REFS (FWD_REFS * BWD_REFS + TOTAL_UNIDIR_COMP_REFS) + +#define COMP_REFS (FWD_REFS * BWD_REFS + UNIDIR_COMP_REFS) + +// NOTE: A limited number of unidirectional reference pairs can be signalled for +// compound prediction. The use of skip mode, on the other hand, makes it +// possible to have a reference pair not listed for explicit signaling. +#define MODE_CTX_REF_FRAMES (REF_FRAMES + TOTAL_COMP_REFS) + +typedef enum ATTRIBUTE_PACKED { + RESTORE_NONE, + RESTORE_WIENER, + RESTORE_SGRPROJ, + RESTORE_SWITCHABLE, + RESTORE_SWITCHABLE_TYPES = RESTORE_SWITCHABLE, + RESTORE_TYPES = 4, +} RestorationType; + +#define SUPERRES_SCALE_BITS 3 +#define SUPERRES_SCALE_DENOMINATOR_MIN (SCALE_NUMERATOR + 1) + +// In large_scale_tile coding, external references are used. +#define MAX_EXTERNAL_REFERENCES 128 +#define MAX_TILES 512 + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // AOM_AV1_COMMON_ENUMS_H_ |