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Diffstat (limited to 'third_party/aom/av1/common/enums.h')
| -rw-r--r-- | third_party/aom/av1/common/enums.h | 651 |
1 files changed, 651 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/enums.h b/third_party/aom/av1/common/enums.h new file mode 100644 index 0000000000..b99a138675 --- /dev/null +++ b/third_party/aom/av1/common/enums.h @@ -0,0 +1,651 @@ +/* + * 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" +#include "aom_dsp/txfm_common.h" +#include "aom_ports/mem.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/*! @file */ + +/*!\cond */ + +// 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) + +// 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 + +#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. +enum { + PROFILE_0, + PROFILE_1, + PROFILE_2, + MAX_PROFILES, +} SENUM1BYTE(BITSTREAM_PROFILE); + +#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 + +// Partition types. R: Recursive +// +// NONE HORZ VERT SPLIT +// +-------+ +-------+ +---+---+ +---+---+ +// | | | | | | | | R | R | +// | | +-------+ | | | +---+---+ +// | | | | | | | | R | R | +// +-------+ +-------+ +---+---+ +---+---+ +// +// HORZ_A HORZ_B VERT_A VERT_B +// +---+---+ +-------+ +---+---+ +---+---+ +// | | | | | | | | | | | +// +---+---+ +---+---+ +---+ | | +---+ +// | | | | | | | | | | | +// +-------+ +---+---+ +---+---+ +---+---+ +// +// HORZ_4 VERT_4 +// +-----+ +-+-+-+ +// +-----+ | | | | +// +-----+ | | | | +// +-----+ +-+-+-+ +enum { + 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 +} UENUM1BYTE(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) + +#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 0 +#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 maximum 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 +enum { + 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, +} UENUM1BYTE(TX_MODE); + +// 1D tx types +enum { + DCT_1D, + ADST_1D, + FLIPADST_1D, + IDTX_1D, + TX_TYPES_1D, +} UENUM1BYTE(TX_TYPE_1D); + +enum { + REG_REG, + REG_SMOOTH, + REG_SHARP, + SMOOTH_REG, + SMOOTH_SMOOTH, + SMOOTH_SHARP, + SHARP_REG, + SHARP_SMOOTH, + SHARP_SHARP, +} UENUM1BYTE(DUAL_FILTER_TYPE); + +#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 + +enum { + 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 +} UENUM1BYTE(AOM_REFFRAME); + +enum { + UNIDIR_COMP_REFERENCE, + BIDIR_COMP_REFERENCE, + COMP_REFERENCE_TYPES, +} UENUM1BYTE(COMP_REFERENCE_TYPE); + +enum { PLANE_TYPE_Y, PLANE_TYPE_UV, PLANE_TYPES } UENUM1BYTE(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_INDEX_ZERO CFL_ALPHABET_SIZE +#define CFL_IDX_U(idx) (idx >> CFL_ALPHABET_SIZE_LOG2) +#define CFL_IDX_V(idx) (idx & (CFL_ALPHABET_SIZE - 1)) + +enum { CFL_PRED_U, CFL_PRED_V, CFL_PRED_PLANES } UENUM1BYTE(CFL_PRED_TYPE); + +enum { + CFL_SIGN_ZERO, + CFL_SIGN_NEG, + CFL_SIGN_POS, + CFL_SIGNS +} UENUM1BYTE(CFL_SIGN_TYPE); + +enum { + CFL_DISALLOWED, + CFL_ALLOWED, + CFL_ALLOWED_TYPES +} UENUM1BYTE(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) + +enum { + PALETTE_MAP, + COLOR_MAP_TYPES, +} UENUM1BYTE(COLOR_MAP_TYPE); + +enum { + TWO_COLORS, + THREE_COLORS, + FOUR_COLORS, + FIVE_COLORS, + SIX_COLORS, + SEVEN_COLORS, + EIGHT_COLORS, + PALETTE_SIZES +} UENUM1BYTE(PALETTE_SIZE); + +enum { + 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 +} UENUM1BYTE(PALETTE_COLOR); + +// Note: All directional predictors must be between V_PRED and D67_PRED (both +// inclusive). +enum { + 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, + PRED_MODE_INVALID = MB_MODE_COUNT, + INTRA_MODE_START = DC_PRED, + INTRA_MODE_END = NEARESTMV, + DIR_MODE_START = V_PRED, + DIR_MODE_END = D67_PRED + 1, + 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 +} UENUM1BYTE(PREDICTION_MODE); + +// TODO(ltrudeau) Do we really want to pack this? +// TODO(ltrudeau) Do we match with PREDICTION_MODE? +enum { + 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 +} UENUM1BYTE(UV_PREDICTION_MODE); + +// Number of top model rd to store for pruning y modes in intra mode decision +#define TOP_INTRA_MODEL_COUNT 4 +// Total number of luma intra prediction modes (include both directional and +// non-directional modes) +// Because there are 8 directional modes, each has additional 6 delta angles. +#define LUMA_MODE_COUNT (PAETH_PRED - DC_PRED + 1 + 6 * 8) + +enum { + SIMPLE_TRANSLATION, + OBMC_CAUSAL, // 2-sided OBMC + WARPED_CAUSAL, // 2-sided WARPED + MOTION_MODES +} UENUM1BYTE(MOTION_MODE); + +enum { + II_DC_PRED, + II_V_PRED, + II_H_PRED, + II_SMOOTH_PRED, + INTERINTRA_MODES +} UENUM1BYTE(INTERINTRA_MODE); + +enum { + COMPOUND_AVERAGE, + COMPOUND_DISTWTD, + COMPOUND_WEDGE, + COMPOUND_DIFFWTD, + COMPOUND_TYPES, + MASKED_COMPOUND_TYPES = 2, +} UENUM1BYTE(COMPOUND_TYPE); + +enum { + FILTER_DC_PRED, + FILTER_V_PRED, + FILTER_H_PRED, + FILTER_D157_PRED, + FILTER_PAETH_PRED, + FILTER_INTRA_MODES, +} UENUM1BYTE(FILTER_INTRA_MODE); + +enum { + SEQ_LEVEL_2_0, + SEQ_LEVEL_2_1, + SEQ_LEVEL_2_2, + SEQ_LEVEL_2_3, + SEQ_LEVEL_3_0, + SEQ_LEVEL_3_1, + SEQ_LEVEL_3_2, + SEQ_LEVEL_3_3, + SEQ_LEVEL_4_0, + SEQ_LEVEL_4_1, + SEQ_LEVEL_4_2, + SEQ_LEVEL_4_3, + SEQ_LEVEL_5_0, + SEQ_LEVEL_5_1, + SEQ_LEVEL_5_2, + SEQ_LEVEL_5_3, + SEQ_LEVEL_6_0, + SEQ_LEVEL_6_1, + SEQ_LEVEL_6_2, + SEQ_LEVEL_6_3, + SEQ_LEVEL_7_0, + SEQ_LEVEL_7_1, + SEQ_LEVEL_7_2, + SEQ_LEVEL_7_3, + SEQ_LEVEL_8_0, + SEQ_LEVEL_8_1, + SEQ_LEVEL_8_2, + SEQ_LEVEL_8_3, + SEQ_LEVELS, + SEQ_LEVEL_MAX = 31, + SEQ_LEVEL_KEEP_STATS = 32, +} UENUM1BYTE(AV1_LEVEL); + +#define LEVEL_BITS 5 + +#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_PERCEPTUAL 4 +#define DEFAULT_DELTA_Q_RES_OBJECTIVE 4 +#define DEFAULT_DELTA_Q_RES_DUCKY_ENCODE 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 USABLE_REF_MV_STACK_SIZE 4 +#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; + +// An enum for single reference types (and some derived values). +enum { + NONE_FRAME = -1, + INTRA_FRAME, + LAST_FRAME, + LAST2_FRAME, + LAST3_FRAME, + GOLDEN_FRAME, + BWDREF_FRAME, + ALTREF2_FRAME, + ALTREF_FRAME, + REF_FRAMES, + + // Extra/scratch reference frame. It may be: + // - used to update the ALTREF2_FRAME ref (see lshift_bwd_ref_frames()), or + // - updated from ALTREF2_FRAME ref (see rshift_bwd_ref_frames()). + EXTREF_FRAME = REF_FRAMES, + + // Number of inter (non-intra) reference types. + INTER_REFS_PER_FRAME = ALTREF_FRAME - LAST_FRAME + 1, + + // Number of forward (aka past) reference types. + FWD_REFS = GOLDEN_FRAME - LAST_FRAME + 1, + + // Number of backward (aka future) reference types. + BWD_REFS = ALTREF_FRAME - BWDREF_FRAME + 1, + + SINGLE_REFS = FWD_REFS + BWD_REFS, +}; + +#define REF_FRAMES_LOG2 3 + +// REF_FRAMES for the cm->ref_frame_map array, 1 scratch frame for the new +// frame in cm->cur_frame, INTER_REFS_PER_FRAME for scaled references on the +// encoder in the cpi->scaled_ref_buf array. +// The encoder uses FRAME_BUFFERS only in GOOD and REALTIME encoding modes. +// The decoder also uses FRAME_BUFFERS. +#define FRAME_BUFFERS (REF_FRAMES + 1 + INTER_REFS_PER_FRAME) + +// During allintra encoding, one reference frame buffer is free to be used again +// only after another frame buffer is stored as the reference frame. Hence, it +// is necessary and sufficient to maintain only two reference frame buffers in +// this case. +#define FRAME_BUFFERS_ALLINTRA 2 + +#define FWD_RF_OFFSET(ref) (ref - LAST_FRAME) +#define BWD_RF_OFFSET(ref) (ref - BWDREF_FRAME) + +// Select all the decoded frame buffer slots +#define SELECT_ALL_BUF_SLOTS 0xFF + +enum { + 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, +} UENUM1BYTE(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) + +// Note: It includes single and compound references. So, it can take values from +// NONE_FRAME to (MODE_CTX_REF_FRAMES - 1). Hence, it is not defined as an enum. +typedef int8_t MV_REFERENCE_FRAME; + +/*!\endcond */ + +/*!\enum RestorationType + * \brief This enumeration defines various restoration types supported + */ +typedef enum { + RESTORE_NONE, /**< No restoration */ + RESTORE_WIENER, /**< Separable Wiener restoration */ + RESTORE_SGRPROJ, /**< Selfguided restoration */ + RESTORE_SWITCHABLE, /**< Switchable restoration */ + RESTORE_SWITCHABLE_TYPES = RESTORE_SWITCHABLE, /**< Num Switchable types */ + RESTORE_TYPES = 4, /**< Num Restore types */ +} RestorationType; + +/*!\cond */ +// Picture prediction structures (0-13 are predefined) in scalability metadata. +enum { + SCALABILITY_L1T2 = 0, + SCALABILITY_L1T3 = 1, + SCALABILITY_L2T1 = 2, + SCALABILITY_L2T2 = 3, + SCALABILITY_L2T3 = 4, + SCALABILITY_S2T1 = 5, + SCALABILITY_S2T2 = 6, + SCALABILITY_S2T3 = 7, + SCALABILITY_L2T1h = 8, + SCALABILITY_L2T2h = 9, + SCALABILITY_L2T3h = 10, + SCALABILITY_S2T1h = 11, + SCALABILITY_S2T2h = 12, + SCALABILITY_S2T3h = 13, + SCALABILITY_SS = 14 +} UENUM1BYTE(SCALABILITY_STRUCTURES); + +#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 + +/*!\endcond */ + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // AOM_AV1_COMMON_ENUMS_H_ |