ref: 1cec875c1feb82dc91469a7cfefaf1ff1dcb63b7
dir: /src/ref_mvs.c/
/* * Copyright (c) 2001-2016, 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. */ /* * Changes made compared to libaom version: * - we disable TMV and enable MV_COMPRESS so that the * input array for prev_frames can be at 4x4 instead of * 8x8 resolution, and therefore shared between cur_frame * and prev_frame. To make enc/dec behave consistent, we * also make this change around line 2580: #if 0 AOMMIN(((mi_row >> 1) << 1) + 1 + (((xd->n8_h - 1) >> 1) << 1), mi_row_end - 1) * prev_frame_mvs_stride + AOMMIN(((mi_col >> 1) << 1) + 1 + (((xd->n8_w - 1) >> 1) << 1), mi_col_end - 1) #else (((mi_row >> 1) << 1) + 1) * prev_frame_mvs_stride + (((mi_col >> 1) << 1) + 1) #endif * and the same change (swap mi_cols from prev_frame.mv_stride) on line 2407 * - we disable rect-block overhanging edge inclusion (see * line 2642): if (num_8x8_blocks_wide == num_8x8_blocks_high || 1) { mv_ref_search[5].row = -1; mv_ref_search[5].col = 0; mv_ref_search[6].row = 0; mv_ref_search[6].col = -1; } else { mv_ref_search[5].row = -1; mv_ref_search[5].col = num_8x8_blocks_wide; mv_ref_search[6].row = num_8x8_blocks_high; mv_ref_search[6].col = -1; } * Note that this is a bitstream change and needs the same * change on the decoder side also. * - we change xd->mi to be a pointer instead of a double ptr. */ #include "config.h" #include <assert.h> #include <errno.h> #include <limits.h> #include <stddef.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include "common/intops.h" #define av1_zero(a) memset(a, 0, sizeof(a)) #define ATTRIBUTE_PACKED #define INLINE inline #define IMPLIES(a, b) (!(a) || (b)) // Logical 'a implies b' (or 'a -> b') #define ROUND_POWER_OF_TWO(value, n) (((value) + (((1 << (n)) >> 1))) >> (n)) #define ROUND_POWER_OF_TWO_SIGNED(value, n) \ (((value) < 0) ? -ROUND_POWER_OF_TWO(-(value), (n)) \ : ROUND_POWER_OF_TWO((value), (n))) #define NELEMENTS(x) (int)(sizeof(x) / sizeof(x[0])) #define MAX_MV_REF_CANDIDATES 2 #define MAX_REF_MV_STACK_SIZE 8 #define REF_CAT_LEVEL 640 #define FRAME_OFFSET_BITS 5 #define MAX_FRAME_DISTANCE ((1 << FRAME_OFFSET_BITS) - 1) #define INVALID_MV 0x80008000 #define COMP_NEWMV_CTXS 5 #define REFMV_OFFSET 4 #define REFMV_CTX_MASK ((1 << (8 - REFMV_OFFSET)) - 1) #define MV_IN_USE_BITS 14 #define MV_UPP (1 << MV_IN_USE_BITS) #define MV_LOW (-(1 << MV_IN_USE_BITS)) typedef struct MV { int16_t row; int16_t col; } MV; typedef union int_mv { uint32_t as_int; MV as_mv; } int_mv; typedef int8_t MV_REFERENCE_FRAME; #define MFMV_STACK_SIZE 3 typedef struct { int_mv mfmv0; uint8_t ref_frame_offset; } TPL_MV_REF; typedef struct { int_mv mv[2]; MV_REFERENCE_FRAME ref_frame[2]; int8_t mode, sb_type; } MV_REF; #define MB_MODE_INFO MV_REF #define AOMMAX(a,b) ((a)>(b)?(a):(b)) #define AOMMIN(a,b) ((a)<(b)?(a):(b)) typedef struct candidate_mv { int_mv this_mv; int_mv comp_mv; int weight; } CANDIDATE_MV; #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 LAST_REF_FRAMES (LAST3_FRAME - LAST_FRAME + 1) #define INTER_REFS_PER_FRAME (ALTREF_FRAME - LAST_FRAME + 1) #define TOTAL_REFS_PER_FRAME (ALTREF_FRAME - INTRA_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 FWD_REFS (GOLDEN_FRAME - LAST_FRAME + 1) #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 MODE_CTX_REF_FRAMES (TOTAL_REFS_PER_FRAME + TOTAL_COMP_REFS) #define GLOBALMV_OFFSET 3 #define NEWMV_CTX_MASK ((1 << GLOBALMV_OFFSET) - 1) #define GLOBALMV_CTX_MASK ((1 << (REFMV_OFFSET - GLOBALMV_OFFSET)) - 1) #define MI_SIZE_LOG2 2 #define MI_SIZE (1 << MI_SIZE_LOG2) #define MAX_SB_SIZE_LOG2 7 #define MAX_MIB_SIZE_LOG2 (MAX_SB_SIZE_LOG2 - MI_SIZE_LOG2) #define MIN_MIB_SIZE_LOG2 (MIN_SB_SIZE_LOG2 - MI_SIZE_LOG2) #define MAX_MIB_SIZE (1 << MAX_MIB_SIZE_LOG2) #define MI_SIZE_64X64 (64 >> MI_SIZE_LOG2) #define MI_SIZE_128X128 (128 >> MI_SIZE_LOG2) #define REFMV_OFFSET 4 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_32X128, BLOCK_128X32, BLOCK_SIZES_ALL, BLOCK_SIZES = BLOCK_4X16, BLOCK_INVALID = 255, BLOCK_LARGEST = (BLOCK_SIZES - 1) } BLOCK_SIZE; 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 struct CUR_MODE_INFO { PARTITION_TYPE partition; } CUR_MODE_INFO ; typedef enum ATTRIBUTE_PACKED { DC_PRED, // Average of above and left pixels V_PRED, // Vertical H_PRED, // Horizontal D45_PRED, // Directional 45 deg = round(arctan(1/1) * 180/pi) D135_PRED, // Directional 135 deg = 180 - 45 D117_PRED, // Directional 117 deg = 180 - 63 D153_PRED, // Directional 153 deg = 180 - 27 D207_PRED, // Directional 207 deg = 180 + 27 D63_PRED, // Directional 63 deg = round(arctan(2/1) * 180/pi) 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_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; typedef enum { IDENTITY = 0, // identity transformation, 0-parameter TRANSLATION = 1, // translational motion 2-parameter ROTZOOM = 2, // simplified affine with rotation + zoom only, 4-parameter AFFINE = 3, // affine, 6-parameter TRANS_TYPES, } TransformationType; #define LEAST_SQUARES_SAMPLES_MAX_BITS 3 #define LEAST_SQUARES_SAMPLES_MAX (1 << LEAST_SQUARES_SAMPLES_MAX_BITS) #define SAMPLES_ARRAY_SIZE (LEAST_SQUARES_SAMPLES_MAX * 2) static const uint8_t mi_size_wide[BLOCK_SIZES_ALL] = { 1, 1, 2, 2, 2, 4, 4, 4, 8, 8, 8, 16, 16, 16, 32, 32, 1, 4, 2, 8, 4, 16, 8, 32 }; static const uint8_t mi_size_high[BLOCK_SIZES_ALL] = { 1, 2, 1, 2, 4, 2, 4, 8, 4, 8, 16, 8, 16, 32, 16, 32, 4, 1, 8, 2, 16, 4, 32, 8 }; static const uint8_t block_size_wide[BLOCK_SIZES_ALL] = { 4, 4, 8, 8, 8, 16, 16, 16, 32, 32, 32, 64, 64, 64, 128, 128, 4, 16, 8, 32, 16, 64, 32, 128 }; static const uint8_t block_size_high[BLOCK_SIZES_ALL] = { 4, 8, 4, 8, 16, 8, 16, 32, 16, 32, 64, 32, 64, 128, 64, 128, 16, 4, 32, 8, 64, 16, 128, 32 }; static INLINE int is_global_mv_block(const MB_MODE_INFO *const mbmi, TransformationType type) { const PREDICTION_MODE mode = mbmi->mode; const BLOCK_SIZE bsize = mbmi->sb_type; const int block_size_allowed = AOMMIN(block_size_wide[bsize], block_size_high[bsize]) >= 8; return block_size_allowed && type > TRANSLATION && (mode == GLOBALMV || mode == GLOBAL_GLOBALMV); } typedef struct { TransformationType wmtype; int32_t wmmat[6]; int16_t alpha, beta, gamma, delta; } Dav1dWarpedMotionParams; #define REF_FRAMES_LOG2 3 #define REF_FRAMES (1 << REF_FRAMES_LOG2) #define FRAME_BUFFERS (REF_FRAMES + 7) typedef struct { unsigned int cur_frame_offset; unsigned int ref_frame_offset[INTER_REFS_PER_FRAME]; MV_REF *mvs; ptrdiff_t mv_stride; int mi_rows; int mi_cols; uint8_t intra_only; } RefCntBuffer; #define INVALID_IDX -1 // Invalid buffer index. typedef struct TileInfo { int mi_row_start, mi_row_end; int mi_col_start, mi_col_end; int tg_horz_boundary; } TileInfo; typedef struct macroblockd { TileInfo tile; int mi_stride; CUR_MODE_INFO cur_mi; MB_MODE_INFO *mi; int up_available; int left_available; /* Distance of MB away from frame edges in subpixels (1/8th pixel) */ int mb_to_left_edge; int mb_to_right_edge; int mb_to_top_edge; int mb_to_bottom_edge; // block dimension in the unit of mode_info. uint8_t n8_w, n8_h; uint8_t is_sec_rect; } MACROBLOCKD; typedef struct RefBuffer { int idx; // frame buf idx } RefBuffer; typedef struct BufferPool { RefCntBuffer frame_bufs[FRAME_BUFFERS]; } BufferPool; typedef struct AV1Common { // TODO(hkuang): Combine this with cur_buf in macroblockd. RefCntBuffer cur_frame; // Each Inter frame can reference INTER_REFS_PER_FRAME buffers RefBuffer frame_refs[INTER_REFS_PER_FRAME]; int allow_high_precision_mv; int cur_frame_force_integer_mv; // 0 the default in AOM, 1 only integer int mi_rows; int mi_cols; int mi_stride; // Whether to use previous frame's motion vectors for prediction. int allow_ref_frame_mvs; int ref_frame_sign_bias[TOTAL_REFS_PER_FRAME]; /* Two state 0, 1 */ int frame_parallel_decode; // frame-based threading. unsigned int frame_offset; // External BufferPool passed from outside. BufferPool buffer_pool; Dav1dWarpedMotionParams global_motion[TOTAL_REFS_PER_FRAME]; struct { BLOCK_SIZE sb_size; int enable_order_hint; int order_hint_bits_minus1; } seq_params; TPL_MV_REF *tpl_mvs; // TODO(jingning): This can be combined with sign_bias later. int8_t ref_frame_side[TOTAL_REFS_PER_FRAME]; int ref_buf_idx[INTER_REFS_PER_FRAME]; int ref_order_hint[INTER_REFS_PER_FRAME]; } AV1_COMMON; static INLINE void integer_mv_precision(MV *mv) { int mod = (mv->row % 8); if (mod != 0) { mv->row -= mod; if (abs(mod) > 4) { if (mod > 0) { mv->row += 8; } else { mv->row -= 8; } } } mod = (mv->col % 8); if (mod != 0) { mv->col -= mod; if (abs(mod) > 4) { if (mod > 0) { mv->col += 8; } else { mv->col -= 8; } } } } static INLINE int clamp(int value, int low, int high) { return value < low ? low : (value > high ? high : value); } static INLINE void clamp_mv(MV *mv, int min_col, int max_col, int min_row, int max_row) { mv->col = clamp(mv->col, min_col, max_col); mv->row = clamp(mv->row, min_row, max_row); } static INLINE int is_intrabc_block(const MB_MODE_INFO *mbmi) { return mbmi->ref_frame[0] == INTRA_FRAME && mbmi->mv[0].as_mv.row != -0x8000; //return mbmi->use_intrabc; } static INLINE int is_inter_block(const MB_MODE_INFO *mbmi) { if (is_intrabc_block(mbmi)) return 1; return mbmi->ref_frame[0] > INTRA_FRAME; } static INLINE MV_REFERENCE_FRAME comp_ref0(int ref_idx) { static const MV_REFERENCE_FRAME lut[] = { LAST_FRAME, // LAST_LAST2_FRAMES, LAST_FRAME, // LAST_LAST3_FRAMES, LAST_FRAME, // LAST_GOLDEN_FRAMES, BWDREF_FRAME, // BWDREF_ALTREF_FRAMES, LAST2_FRAME, // LAST2_LAST3_FRAMES LAST2_FRAME, // LAST2_GOLDEN_FRAMES, LAST3_FRAME, // LAST3_GOLDEN_FRAMES, BWDREF_FRAME, // BWDREF_ALTREF2_FRAMES, ALTREF2_FRAME, // ALTREF2_ALTREF_FRAMES, }; assert(NELEMENTS(lut) == TOTAL_UNIDIR_COMP_REFS); return lut[ref_idx]; } static INLINE MV_REFERENCE_FRAME comp_ref1(int ref_idx) { static const MV_REFERENCE_FRAME lut[] = { LAST2_FRAME, // LAST_LAST2_FRAMES, LAST3_FRAME, // LAST_LAST3_FRAMES, GOLDEN_FRAME, // LAST_GOLDEN_FRAMES, ALTREF_FRAME, // BWDREF_ALTREF_FRAMES, LAST3_FRAME, // LAST2_LAST3_FRAMES GOLDEN_FRAME, // LAST2_GOLDEN_FRAMES, GOLDEN_FRAME, // LAST3_GOLDEN_FRAMES, ALTREF2_FRAME, // BWDREF_ALTREF2_FRAMES, ALTREF_FRAME, // ALTREF2_ALTREF_FRAMES, }; assert(NELEMENTS(lut) == TOTAL_UNIDIR_COMP_REFS); return lut[ref_idx]; } #define WARPEDMODEL_PREC_BITS 16 #define GM_TRANS_ONLY_PREC_DIFF (WARPEDMODEL_PREC_BITS - 3) #define WARPEDMODEL_ROW3HOMO_PREC_BITS 16 static INLINE int convert_to_trans_prec(int allow_hp, int coor) { if (allow_hp) return ROUND_POWER_OF_TWO_SIGNED(coor, WARPEDMODEL_PREC_BITS - 3); else return ROUND_POWER_OF_TWO_SIGNED(coor, WARPEDMODEL_PREC_BITS - 2) * 2; } static INLINE int block_center_x(int mi_col, BLOCK_SIZE bs) { const int bw = block_size_wide[bs]; return mi_col * MI_SIZE + bw / 2 - 1; } static INLINE int block_center_y(int mi_row, BLOCK_SIZE bs) { const int bh = block_size_high[bs]; return mi_row * MI_SIZE + bh / 2 - 1; } // Convert a global motion vector into a motion vector at the centre of the // given block. // // The resulting motion vector will have three fractional bits of precision. If // allow_hp is zero, the bottom bit will always be zero. If CONFIG_AMVR and // is_integer is true, the bottom three bits will be zero (so the motion vector // represents an integer) static INLINE int_mv gm_get_motion_vector(const Dav1dWarpedMotionParams *gm, int allow_hp, BLOCK_SIZE bsize, int mi_col, int mi_row, int is_integer) { int_mv res; const int32_t *mat = gm->wmmat; int x, y, tx, ty; if (gm->wmtype == TRANSLATION) { // All global motion vectors are stored with WARPEDMODEL_PREC_BITS (16) // bits of fractional precision. The offset for a translation is stored in // entries 0 and 1. For translations, all but the top three (two if // cm->allow_high_precision_mv is false) fractional bits are always zero. // // After the right shifts, there are 3 fractional bits of precision. If // allow_hp is false, the bottom bit is always zero (so we don't need a // call to convert_to_trans_prec here) res.as_mv.row = gm->wmmat[0] >> GM_TRANS_ONLY_PREC_DIFF; res.as_mv.col = gm->wmmat[1] >> GM_TRANS_ONLY_PREC_DIFF; assert(IMPLIES(1 & (res.as_mv.row | res.as_mv.col), allow_hp)); if (is_integer) { integer_mv_precision(&res.as_mv); } return res; } x = block_center_x(mi_col, bsize); y = block_center_y(mi_row, bsize); if (gm->wmtype == ROTZOOM) { assert(gm->wmmat[5] == gm->wmmat[2]); assert(gm->wmmat[4] == -gm->wmmat[3]); } if (gm->wmtype > AFFINE) { int xc = (int)((int64_t)mat[2] * x + (int64_t)mat[3] * y + mat[0]); int yc = (int)((int64_t)mat[4] * x + (int64_t)mat[5] * y + mat[1]); const int Z = (int)((int64_t)mat[6] * x + (int64_t)mat[7] * y + (1 << WARPEDMODEL_ROW3HOMO_PREC_BITS)); xc *= 1 << (WARPEDMODEL_ROW3HOMO_PREC_BITS - WARPEDMODEL_PREC_BITS); yc *= 1 << (WARPEDMODEL_ROW3HOMO_PREC_BITS - WARPEDMODEL_PREC_BITS); xc = (int)(xc > 0 ? ((int64_t)xc + Z / 2) / Z : ((int64_t)xc - Z / 2) / Z); yc = (int)(yc > 0 ? ((int64_t)yc + Z / 2) / Z : ((int64_t)yc - Z / 2) / Z); tx = convert_to_trans_prec(allow_hp, xc) - (x << 3); ty = convert_to_trans_prec(allow_hp, yc) - (y << 3); } else { const int xc = (mat[2] - (1 << WARPEDMODEL_PREC_BITS)) * x + mat[3] * y + mat[0]; const int yc = mat[4] * x + (mat[5] - (1 << WARPEDMODEL_PREC_BITS)) * y + mat[1]; tx = convert_to_trans_prec(allow_hp, xc); ty = convert_to_trans_prec(allow_hp, yc); } res.as_mv.row = ty; res.as_mv.col = tx; if (is_integer) { integer_mv_precision(&res.as_mv); } return res; } static INLINE int have_newmv_in_inter_mode(PREDICTION_MODE mode) { return (mode == NEWMV || mode == NEW_NEWMV || mode == NEAREST_NEWMV || mode == NEW_NEARESTMV || mode == NEAR_NEWMV || mode == NEW_NEARMV); } /* * 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 AV1_COMMON_MVREF_COMMON_H_ #define AV1_COMMON_MVREF_COMMON_H_ //#include "av1/common/onyxc_int.h" //#include "av1/common/blockd.h" #ifdef __cplusplus extern "C" { #endif #define MVREF_ROW_COLS 3 // Set the upper limit of the motion vector component magnitude. // This would make a motion vector fit in 26 bits. Plus 3 bits for the // reference frame index. A tuple of motion vector can hence be stored within // 32 bit range for efficient load/store operations. #define REFMVS_LIMIT ((1 << 12) - 1) typedef struct position { int row; int col; } POSITION; // clamp_mv_ref #define MV_BORDER (16 << 3) // Allow 16 pels in 1/8th pel units static INLINE int get_relative_dist(const AV1_COMMON *cm, int a, int b) { if (!cm->seq_params.enable_order_hint) return 0; const int bits = cm->seq_params.order_hint_bits_minus1 + 1; assert(bits >= 1); assert(a >= 0 && a < (1 << bits)); assert(b >= 0 && b < (1 << bits)); int diff = a - b; int m = 1 << (bits - 1); diff = (diff & (m - 1)) - (diff & m); return diff; } static INLINE void clamp_mv_ref(MV *mv, int bw, int bh, const MACROBLOCKD *xd) { clamp_mv(mv, xd->mb_to_left_edge - bw * 8 - MV_BORDER, xd->mb_to_right_edge + bw * 8 + MV_BORDER, xd->mb_to_top_edge - bh * 8 - MV_BORDER, xd->mb_to_bottom_edge + bh * 8 + MV_BORDER); } // This function returns either the appropriate sub block or block's mv // on whether the block_size < 8x8 and we have check_sub_blocks set. static INLINE int_mv get_sub_block_mv(const MB_MODE_INFO *candidate, int which_mv, int search_col) { (void)search_col; return candidate->mv[which_mv]; } // Checks that the given mi_row, mi_col and search point // are inside the borders of the tile. static INLINE int is_inside(const TileInfo *const tile, int mi_col, int mi_row, int mi_rows, const POSITION *mi_pos) { const int dependent_horz_tile_flag = 0; if (dependent_horz_tile_flag && !tile->tg_horz_boundary) { return !(mi_row + mi_pos->row < 0 || mi_col + mi_pos->col < tile->mi_col_start || mi_row + mi_pos->row >= mi_rows || mi_col + mi_pos->col >= tile->mi_col_end); } else { return !(mi_row + mi_pos->row < tile->mi_row_start || mi_col + mi_pos->col < tile->mi_col_start || mi_row + mi_pos->row >= tile->mi_row_end || mi_col + mi_pos->col >= tile->mi_col_end); } } static INLINE int find_valid_row_offset(const TileInfo *const tile, int mi_row, int mi_rows, int row_offset) { const int dependent_horz_tile_flag = 0; if (dependent_horz_tile_flag && !tile->tg_horz_boundary) return clamp(row_offset, -mi_row, mi_rows - mi_row - 1); else return clamp(row_offset, tile->mi_row_start - mi_row, tile->mi_row_end - mi_row - 1); } static INLINE int find_valid_col_offset(const TileInfo *const tile, int mi_col, int col_offset) { return clamp(col_offset, tile->mi_col_start - mi_col, tile->mi_col_end - mi_col - 1); } static INLINE void lower_mv_precision(MV *mv, int allow_hp, int is_integer) { if (is_integer) { integer_mv_precision(mv); } else { if (!allow_hp) { if (mv->row & 1) mv->row += (mv->row > 0 ? -1 : 1); if (mv->col & 1) mv->col += (mv->col > 0 ? -1 : 1); } } } static INLINE int8_t get_uni_comp_ref_idx(const MV_REFERENCE_FRAME *const rf) { // Single ref pred if (rf[1] <= INTRA_FRAME) return -1; // Bi-directional comp ref pred if ((rf[0] < BWDREF_FRAME) && (rf[1] >= BWDREF_FRAME)) return -1; for (int8_t ref_idx = 0; ref_idx < TOTAL_UNIDIR_COMP_REFS; ++ref_idx) { if (rf[0] == comp_ref0(ref_idx) && rf[1] == comp_ref1(ref_idx)) return ref_idx; } return -1; } static INLINE int8_t av1_ref_frame_type(const MV_REFERENCE_FRAME *const rf) { if (rf[1] > INTRA_FRAME) { const int8_t uni_comp_ref_idx = get_uni_comp_ref_idx(rf); if (uni_comp_ref_idx >= 0) { assert((REF_FRAMES + FWD_REFS * BWD_REFS + uni_comp_ref_idx) < MODE_CTX_REF_FRAMES); return REF_FRAMES + FWD_REFS * BWD_REFS + uni_comp_ref_idx; } else { return REF_FRAMES + FWD_RF_OFFSET(rf[0]) + BWD_RF_OFFSET(rf[1]) * FWD_REFS; } } return rf[0]; } // clang-format off static MV_REFERENCE_FRAME ref_frame_map[TOTAL_COMP_REFS][2] = { { LAST_FRAME, BWDREF_FRAME }, { LAST2_FRAME, BWDREF_FRAME }, { LAST3_FRAME, BWDREF_FRAME }, { GOLDEN_FRAME, BWDREF_FRAME }, { LAST_FRAME, ALTREF2_FRAME }, { LAST2_FRAME, ALTREF2_FRAME }, { LAST3_FRAME, ALTREF2_FRAME }, { GOLDEN_FRAME, ALTREF2_FRAME }, { LAST_FRAME, ALTREF_FRAME }, { LAST2_FRAME, ALTREF_FRAME }, { LAST3_FRAME, ALTREF_FRAME }, { GOLDEN_FRAME, ALTREF_FRAME }, { LAST_FRAME, LAST2_FRAME }, { LAST_FRAME, LAST3_FRAME }, { LAST_FRAME, GOLDEN_FRAME }, { BWDREF_FRAME, ALTREF_FRAME }, // NOTE: Following reference frame pairs are not supported to be explicitly // signalled, but they are possibly chosen by the use of skip_mode, // which may use the most recent one-sided reference frame pair. { LAST2_FRAME, LAST3_FRAME }, { LAST2_FRAME, GOLDEN_FRAME }, { LAST3_FRAME, GOLDEN_FRAME }, {BWDREF_FRAME, ALTREF2_FRAME}, { ALTREF2_FRAME, ALTREF_FRAME } }; // clang-format on static INLINE void av1_set_ref_frame(MV_REFERENCE_FRAME *rf, int8_t ref_frame_type) { if (ref_frame_type >= REF_FRAMES) { rf[0] = ref_frame_map[ref_frame_type - REF_FRAMES][0]; rf[1] = ref_frame_map[ref_frame_type - REF_FRAMES][1]; } else { rf[0] = ref_frame_type; rf[1] = NONE_FRAME; assert(ref_frame_type > NONE_FRAME); } } static uint16_t compound_mode_ctx_map[3][COMP_NEWMV_CTXS] = { { 0, 1, 1, 1, 1 }, { 1, 2, 3, 4, 4 }, { 4, 4, 5, 6, 7 }, }; static INLINE int16_t av1_mode_context_analyzer( const int16_t *const mode_context, const MV_REFERENCE_FRAME *const rf) { const int8_t ref_frame = av1_ref_frame_type(rf); if (rf[1] <= INTRA_FRAME) return mode_context[ref_frame]; const int16_t newmv_ctx = mode_context[ref_frame] & NEWMV_CTX_MASK; const int16_t refmv_ctx = (mode_context[ref_frame] >> REFMV_OFFSET) & REFMV_CTX_MASK; const int16_t comp_ctx = compound_mode_ctx_map[refmv_ctx >> 1][AOMMIN( newmv_ctx, COMP_NEWMV_CTXS - 1)]; return comp_ctx; } static void av1_setup_frame_buf_refs(AV1_COMMON *cm); void av1_setup_frame_sign_bias(AV1_COMMON *cm); void av1_setup_skip_mode_allowed(AV1_COMMON *cm); void av1_copy_frame_mvs(const AV1_COMMON *const cm, MB_MODE_INFO *mi, int mi_row, int mi_col, int x_mis, int y_mis); static void av1_find_mv_refs(const AV1_COMMON *cm, const MACROBLOCKD *xd, MB_MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame, uint8_t ref_mv_count[MODE_CTX_REF_FRAMES], CANDIDATE_MV ref_mv_stack[][MAX_REF_MV_STACK_SIZE], int_mv mv_ref_list[][MAX_MV_REF_CANDIDATES], int_mv *global_mvs, int mi_row, int mi_col, int16_t *mode_context); int selectSamples(MV *mv, int *pts, int *pts_inref, int len, BLOCK_SIZE bsize); int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col, int *pts, int *pts_inref); #define INTRABC_DELAY_PIXELS 256 // Delay of 256 pixels #define INTRABC_DELAY_SB64 (INTRABC_DELAY_PIXELS / 64) #define USE_WAVE_FRONT 1 // Use only top left area of frame for reference. #ifdef __cplusplus } // extern "C" #endif #endif // AV1_COMMON_MVREF_COMMON_H_ /* * 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. */ #include <stdlib.h> //#include "av1/common/mvref_common.h" //#include "av1/common/warped_motion.h" // Although we assign 32 bit integers, all the values are strictly under 14 // bits. static int div_mult[32] = { 0, 16384, 8192, 5461, 4096, 3276, 2730, 2340, 2048, 1820, 1638, 1489, 1365, 1260, 1170, 1092, 1024, 963, 910, 862, 819, 780, 744, 712, 682, 655, 630, 606, 585, 564, 546, 528 }; // TODO(jingning): Consider the use of lookup table for (num / den) // altogether. static void get_mv_projection(MV *output, MV ref, int num, int den) { den = AOMMIN(den, MAX_FRAME_DISTANCE); num = num > 0 ? AOMMIN(num, MAX_FRAME_DISTANCE) : AOMMAX(num, -MAX_FRAME_DISTANCE); int mv_row = ROUND_POWER_OF_TWO_SIGNED(ref.row * num * div_mult[den], 14); int mv_col = ROUND_POWER_OF_TWO_SIGNED(ref.col * num * div_mult[den], 14); const int clamp_max = MV_UPP - 1; const int clamp_min = MV_LOW + 1; output->row = (int16_t)clamp(mv_row, clamp_min, clamp_max); output->col = (int16_t)clamp(mv_col, clamp_min, clamp_max); } static void add_ref_mv_candidate( const MB_MODE_INFO *const candidate, const MV_REFERENCE_FRAME rf[2], uint8_t *refmv_count, uint8_t *ref_match_count, uint8_t *newmv_count, CANDIDATE_MV *ref_mv_stack, int_mv *gm_mv_candidates, const Dav1dWarpedMotionParams *gm_params, int col, int weight) { if (!is_inter_block(candidate)) return; // for intrabc int index = 0, ref; assert(weight % 2 == 0); if (rf[1] == NONE_FRAME) { // single reference frame for (ref = 0; ref < 2; ++ref) { if (candidate->ref_frame[ref] == rf[0]) { int_mv this_refmv; if (is_global_mv_block(candidate, gm_params[rf[0]].wmtype)) this_refmv = gm_mv_candidates[0]; else this_refmv = get_sub_block_mv(candidate, ref, col); for (index = 0; index < *refmv_count; ++index) if (ref_mv_stack[index].this_mv.as_int == this_refmv.as_int) break; if (index < *refmv_count) ref_mv_stack[index].weight += weight; // Add a new item to the list. if (index == *refmv_count && *refmv_count < MAX_REF_MV_STACK_SIZE) { ref_mv_stack[index].this_mv = this_refmv; ref_mv_stack[index].weight = weight; ++(*refmv_count); } if (have_newmv_in_inter_mode(candidate->mode)) ++*newmv_count; ++*ref_match_count; } } } else { // compound reference frame if (candidate->ref_frame[0] == rf[0] && candidate->ref_frame[1] == rf[1]) { int_mv this_refmv[2]; for (ref = 0; ref < 2; ++ref) { if (is_global_mv_block(candidate, gm_params[rf[ref]].wmtype)) this_refmv[ref] = gm_mv_candidates[ref]; else this_refmv[ref] = get_sub_block_mv(candidate, ref, col); } for (index = 0; index < *refmv_count; ++index) if ((ref_mv_stack[index].this_mv.as_int == this_refmv[0].as_int) && (ref_mv_stack[index].comp_mv.as_int == this_refmv[1].as_int)) break; if (index < *refmv_count) ref_mv_stack[index].weight += weight; // Add a new item to the list. if (index == *refmv_count && *refmv_count < MAX_REF_MV_STACK_SIZE) { ref_mv_stack[index].this_mv = this_refmv[0]; ref_mv_stack[index].comp_mv = this_refmv[1]; ref_mv_stack[index].weight = weight; ++(*refmv_count); } if (have_newmv_in_inter_mode(candidate->mode)) ++*newmv_count; ++*ref_match_count; } } } static void scan_row_mbmi(const AV1_COMMON *cm, const MACROBLOCKD *xd, int mi_row, int mi_col, const MV_REFERENCE_FRAME rf[2], int row_offset, CANDIDATE_MV *ref_mv_stack, uint8_t *refmv_count, uint8_t *ref_match_count, uint8_t *newmv_count, int_mv *gm_mv_candidates, int max_row_offset, int *processed_rows) { int end_mi = AOMMIN(xd->n8_w, cm->mi_cols - mi_col); end_mi = AOMMIN(end_mi, mi_size_wide[BLOCK_64X64]); const int n8_w_8 = mi_size_wide[BLOCK_8X8]; const int n8_w_16 = mi_size_wide[BLOCK_16X16]; int i; int col_offset = 0; const int shift = 0; // TODO(jingning): Revisit this part after cb4x4 is stable. if (abs(row_offset) > 1) { col_offset = 1; if ((mi_col & 0x01) && xd->n8_w < n8_w_8) --col_offset; } const int use_step_16 = (xd->n8_w >= 16); MB_MODE_INFO *const candidate_mi0 = xd->mi + row_offset * xd->mi_stride; (void)mi_row; for (i = 0; i < end_mi;) { const MB_MODE_INFO *const candidate = &candidate_mi0[col_offset + i]; const int candidate_bsize = candidate->sb_type; const int n8_w = mi_size_wide[candidate_bsize]; int len = AOMMIN(xd->n8_w, n8_w); if (use_step_16) len = AOMMAX(n8_w_16, len); else if (abs(row_offset) > 1) len = AOMMAX(len, n8_w_8); int weight = 2; if (xd->n8_w >= n8_w_8 && xd->n8_w <= n8_w) { int inc = AOMMIN(-max_row_offset + row_offset + 1, mi_size_high[candidate_bsize]); // Obtain range used in weight calculation. weight = AOMMAX(weight, (inc << shift)); // Update processed rows. *processed_rows = inc - row_offset - 1; } add_ref_mv_candidate(candidate, rf, refmv_count, ref_match_count, newmv_count, ref_mv_stack, gm_mv_candidates, cm->global_motion, col_offset + i, len * weight); i += len; } } static void scan_col_mbmi(const AV1_COMMON *cm, const MACROBLOCKD *xd, int mi_row, int mi_col, const MV_REFERENCE_FRAME rf[2], int col_offset, CANDIDATE_MV *ref_mv_stack, uint8_t *refmv_count, uint8_t *ref_match_count, uint8_t *newmv_count, int_mv *gm_mv_candidates, int max_col_offset, int *processed_cols) { int end_mi = AOMMIN(xd->n8_h, cm->mi_rows - mi_row); end_mi = AOMMIN(end_mi, mi_size_high[BLOCK_64X64]); const int n8_h_8 = mi_size_high[BLOCK_8X8]; const int n8_h_16 = mi_size_high[BLOCK_16X16]; int i; int row_offset = 0; const int shift = 0; if (abs(col_offset) > 1) { row_offset = 1; if ((mi_row & 0x01) && xd->n8_h < n8_h_8) --row_offset; } const int use_step_16 = (xd->n8_h >= 16); (void)mi_col; for (i = 0; i < end_mi;) { const MB_MODE_INFO *const candidate = &xd->mi[(row_offset + i) * xd->mi_stride + col_offset]; const int candidate_bsize = candidate->sb_type; const int n8_h = mi_size_high[candidate_bsize]; int len = AOMMIN(xd->n8_h, n8_h); if (use_step_16) len = AOMMAX(n8_h_16, len); else if (abs(col_offset) > 1) len = AOMMAX(len, n8_h_8); int weight = 2; if (xd->n8_h >= n8_h_8 && xd->n8_h <= n8_h) { int inc = AOMMIN(-max_col_offset + col_offset + 1, mi_size_wide[candidate_bsize]); // Obtain range used in weight calculation. weight = AOMMAX(weight, (inc << shift)); // Update processed cols. *processed_cols = inc - col_offset - 1; } add_ref_mv_candidate(candidate, rf, refmv_count, ref_match_count, newmv_count, ref_mv_stack, gm_mv_candidates, cm->global_motion, col_offset, len * weight); i += len; } } static void scan_blk_mbmi(const AV1_COMMON *cm, const MACROBLOCKD *xd, const int mi_row, const int mi_col, const MV_REFERENCE_FRAME rf[2], int row_offset, int col_offset, CANDIDATE_MV *ref_mv_stack, uint8_t *ref_match_count, uint8_t *newmv_count, int_mv *gm_mv_candidates, uint8_t refmv_count[MODE_CTX_REF_FRAMES]) { const TileInfo *const tile = &xd->tile; POSITION mi_pos; mi_pos.row = row_offset; mi_pos.col = col_offset; if (is_inside(tile, mi_col, mi_row, cm->mi_rows, &mi_pos)) { const MB_MODE_INFO *const candidate = &xd->mi[mi_pos.row * xd->mi_stride + mi_pos.col]; const int len = mi_size_wide[BLOCK_8X8]; add_ref_mv_candidate(candidate, rf, refmv_count, ref_match_count, newmv_count, ref_mv_stack, gm_mv_candidates, cm->global_motion, mi_pos.col, 2 * len); } // Analyze a single 8x8 block motion information. } static int has_top_right(const AV1_COMMON *cm, const MACROBLOCKD *xd, int mi_row, int mi_col, int bs) { const int sb_mi_size = mi_size_wide[cm->seq_params.sb_size]; const int mask_row = mi_row & (sb_mi_size - 1); const int mask_col = mi_col & (sb_mi_size - 1); if (bs > mi_size_wide[BLOCK_64X64]) return 0; // In a split partition all apart from the bottom right has a top right int has_tr = !((mask_row & bs) && (mask_col & bs)); // bs > 0 and bs is a power of 2 assert(bs > 0 && !(bs & (bs - 1))); // For each 4x4 group of blocks, when the bottom right is decoded the blocks // to the right have not been decoded therefore the bottom right does // not have a top right while (bs < sb_mi_size) { if (mask_col & bs) { if ((mask_col & (2 * bs)) && (mask_row & (2 * bs))) { has_tr = 0; break; } } else { break; } bs <<= 1; } // The left hand of two vertical rectangles always has a top right (as the // block above will have been decoded) if (xd->n8_w < xd->n8_h) if (!xd->is_sec_rect) has_tr = 1; // The bottom of two horizontal rectangles never has a top right (as the block // to the right won't have been decoded) if (xd->n8_w > xd->n8_h) if (xd->is_sec_rect) has_tr = 0; // The bottom left square of a Vertical A (in the old format) does // not have a top right as it is decoded before the right hand // rectangle of the partition if (xd->cur_mi.partition == PARTITION_VERT_A) { if (xd->n8_w == xd->n8_h) if (mask_row & bs) has_tr = 0; } return has_tr; } static int check_sb_border(const int mi_row, const int mi_col, const int row_offset, const int col_offset) { const int sb_mi_size = mi_size_wide[BLOCK_64X64]; const int row = mi_row & (sb_mi_size - 1); const int col = mi_col & (sb_mi_size - 1); if (row + row_offset < 0 || row + row_offset >= sb_mi_size || col + col_offset < 0 || col + col_offset >= sb_mi_size) return 0; return 1; } static int add_tpl_ref_mv(const AV1_COMMON *cm, const MACROBLOCKD *xd, int mi_row, int mi_col, MV_REFERENCE_FRAME ref_frame, int blk_row, int blk_col, int_mv *gm_mv_candidates, uint8_t refmv_count[MODE_CTX_REF_FRAMES], CANDIDATE_MV ref_mv_stacks[][MAX_REF_MV_STACK_SIZE], int16_t *mode_context) { POSITION mi_pos; int idx; const int weight_unit = 1; // mi_size_wide[BLOCK_8X8]; mi_pos.row = (mi_row & 0x01) ? blk_row : blk_row + 1; mi_pos.col = (mi_col & 0x01) ? blk_col : blk_col + 1; if (!is_inside(&xd->tile, mi_col, mi_row, cm->mi_rows, &mi_pos)) return 0; const TPL_MV_REF *prev_frame_mvs = cm->tpl_mvs + ((mi_row + mi_pos.row) >> 1) * (cm->mi_stride >> 1) + ((mi_col + mi_pos.col) >> 1); MV_REFERENCE_FRAME rf[2]; av1_set_ref_frame(rf, ref_frame); if (rf[1] == NONE_FRAME) { int cur_frame_index = cm->cur_frame.cur_frame_offset; int buf_idx_0 = cm->frame_refs[FWD_RF_OFFSET(rf[0])].idx; int frame0_index = cm->buffer_pool.frame_bufs[buf_idx_0].cur_frame_offset; int cur_offset_0 = get_relative_dist(cm, cur_frame_index, frame0_index); CANDIDATE_MV *ref_mv_stack = ref_mv_stacks[rf[0]]; if (prev_frame_mvs->mfmv0.as_int != INVALID_MV) { int_mv this_refmv; get_mv_projection(&this_refmv.as_mv, prev_frame_mvs->mfmv0.as_mv, cur_offset_0, prev_frame_mvs->ref_frame_offset); lower_mv_precision(&this_refmv.as_mv, cm->allow_high_precision_mv, cm->cur_frame_force_integer_mv); if (blk_row == 0 && blk_col == 0) if (abs(this_refmv.as_mv.row - gm_mv_candidates[0].as_mv.row) >= 16 || abs(this_refmv.as_mv.col - gm_mv_candidates[0].as_mv.col) >= 16) mode_context[ref_frame] |= (1 << GLOBALMV_OFFSET); for (idx = 0; idx < refmv_count[rf[0]]; ++idx) if (this_refmv.as_int == ref_mv_stack[idx].this_mv.as_int) break; if (idx < refmv_count[rf[0]]) ref_mv_stack[idx].weight += 2 * weight_unit; if (idx == refmv_count[rf[0]] && refmv_count[rf[0]] < MAX_REF_MV_STACK_SIZE) { ref_mv_stack[idx].this_mv.as_int = this_refmv.as_int; ref_mv_stack[idx].weight = 2 * weight_unit; ++(refmv_count[rf[0]]); } return 1; } } else { // Process compound inter mode int cur_frame_index = cm->cur_frame.cur_frame_offset; int buf_idx_0 = cm->frame_refs[FWD_RF_OFFSET(rf[0])].idx; int frame0_index = cm->buffer_pool.frame_bufs[buf_idx_0].cur_frame_offset; int cur_offset_0 = get_relative_dist(cm, cur_frame_index, frame0_index); int buf_idx_1 = cm->frame_refs[FWD_RF_OFFSET(rf[1])].idx; int frame1_index = cm->buffer_pool.frame_bufs[buf_idx_1].cur_frame_offset; int cur_offset_1 = get_relative_dist(cm, cur_frame_index, frame1_index); CANDIDATE_MV *ref_mv_stack = ref_mv_stacks[ref_frame]; if (prev_frame_mvs->mfmv0.as_int != INVALID_MV) { int_mv this_refmv; int_mv comp_refmv; get_mv_projection(&this_refmv.as_mv, prev_frame_mvs->mfmv0.as_mv, cur_offset_0, prev_frame_mvs->ref_frame_offset); get_mv_projection(&comp_refmv.as_mv, prev_frame_mvs->mfmv0.as_mv, cur_offset_1, prev_frame_mvs->ref_frame_offset); lower_mv_precision(&this_refmv.as_mv, cm->allow_high_precision_mv, cm->cur_frame_force_integer_mv); lower_mv_precision(&comp_refmv.as_mv, cm->allow_high_precision_mv, cm->cur_frame_force_integer_mv); if (blk_row == 0 && blk_col == 0) if (abs(this_refmv.as_mv.row - gm_mv_candidates[0].as_mv.row) >= 16 || abs(this_refmv.as_mv.col - gm_mv_candidates[0].as_mv.col) >= 16 || abs(comp_refmv.as_mv.row - gm_mv_candidates[1].as_mv.row) >= 16 || abs(comp_refmv.as_mv.col - gm_mv_candidates[1].as_mv.col) >= 16) mode_context[ref_frame] |= (1 << GLOBALMV_OFFSET); for (idx = 0; idx < refmv_count[ref_frame]; ++idx) if (this_refmv.as_int == ref_mv_stack[idx].this_mv.as_int && comp_refmv.as_int == ref_mv_stack[idx].comp_mv.as_int) break; if (idx < refmv_count[ref_frame]) ref_mv_stack[idx].weight += 2 * weight_unit; if (idx == refmv_count[ref_frame] && refmv_count[ref_frame] < MAX_REF_MV_STACK_SIZE) { ref_mv_stack[idx].this_mv.as_int = this_refmv.as_int; ref_mv_stack[idx].comp_mv.as_int = comp_refmv.as_int; ref_mv_stack[idx].weight = 2 * weight_unit; ++(refmv_count[ref_frame]); } return 1; } } return 0; } static void setup_ref_mv_list( const AV1_COMMON *cm, const MACROBLOCKD *xd, MV_REFERENCE_FRAME ref_frame, uint8_t refmv_count[MODE_CTX_REF_FRAMES], CANDIDATE_MV ref_mv_stack[][MAX_REF_MV_STACK_SIZE], int_mv mv_ref_list[][MAX_MV_REF_CANDIDATES], int_mv *gm_mv_candidates, int mi_row, int mi_col, int16_t *mode_context) { const int bs = AOMMAX(xd->n8_w, xd->n8_h); const int has_tr = has_top_right(cm, xd, mi_row, mi_col, bs); MV_REFERENCE_FRAME rf[2]; const TileInfo *const tile = &xd->tile; int max_row_offset = 0, max_col_offset = 0; const int row_adj = (xd->n8_h < mi_size_high[BLOCK_8X8]) && (mi_row & 0x01); const int col_adj = (xd->n8_w < mi_size_wide[BLOCK_8X8]) && (mi_col & 0x01); int processed_rows = 0; int processed_cols = 0; av1_set_ref_frame(rf, ref_frame); mode_context[ref_frame] = 0; refmv_count[ref_frame] = 0; // Find valid maximum row/col offset. if (xd->up_available) { max_row_offset = -(MVREF_ROW_COLS << 1) + row_adj; if (xd->n8_h < mi_size_high[BLOCK_8X8]) max_row_offset = -(2 << 1) + row_adj; max_row_offset = find_valid_row_offset(tile, mi_row, cm->mi_rows, max_row_offset); } if (xd->left_available) { max_col_offset = -(MVREF_ROW_COLS << 1) + col_adj; if (xd->n8_w < mi_size_wide[BLOCK_8X8]) max_col_offset = -(2 << 1) + col_adj; max_col_offset = find_valid_col_offset(tile, mi_col, max_col_offset); } uint8_t col_match_count = 0; uint8_t row_match_count = 0; uint8_t newmv_count = 0; // Scan the first above row mode info. row_offset = -1; if (abs(max_row_offset) >= 1) scan_row_mbmi(cm, xd, mi_row, mi_col, rf, -1, ref_mv_stack[ref_frame], &refmv_count[ref_frame], &row_match_count, &newmv_count, gm_mv_candidates, max_row_offset, &processed_rows); // Scan the first left column mode info. col_offset = -1; if (abs(max_col_offset) >= 1) scan_col_mbmi(cm, xd, mi_row, mi_col, rf, -1, ref_mv_stack[ref_frame], &refmv_count[ref_frame], &col_match_count, &newmv_count, gm_mv_candidates, max_col_offset, &processed_cols); // Check top-right boundary if (has_tr) scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, xd->n8_w, ref_mv_stack[ref_frame], &row_match_count, &newmv_count, gm_mv_candidates, &refmv_count[ref_frame]); uint8_t nearest_match = (row_match_count > 0) + (col_match_count > 0); uint8_t nearest_refmv_count = refmv_count[ref_frame]; // TODO(yunqing): for comp_search, do it for all 3 cases. for (int idx = 0; idx < nearest_refmv_count; ++idx) ref_mv_stack[ref_frame][idx].weight += REF_CAT_LEVEL; if (cm->allow_ref_frame_mvs) { int is_available = 0; const int voffset = AOMMAX(mi_size_high[BLOCK_8X8], xd->n8_h); const int hoffset = AOMMAX(mi_size_wide[BLOCK_8X8], xd->n8_w); const int blk_row_end = AOMMIN(xd->n8_h, mi_size_high[BLOCK_64X64]); const int blk_col_end = AOMMIN(xd->n8_w, mi_size_wide[BLOCK_64X64]); const int tpl_sample_pos[3][2] = { { voffset, -2 }, { voffset, hoffset }, { voffset - 2, hoffset }, }; const int allow_extension = (xd->n8_h >= mi_size_high[BLOCK_8X8]) && (xd->n8_h < mi_size_high[BLOCK_64X64]) && (xd->n8_w >= mi_size_wide[BLOCK_8X8]) && (xd->n8_w < mi_size_wide[BLOCK_64X64]); int step_h = (xd->n8_h >= mi_size_high[BLOCK_64X64]) ? mi_size_high[BLOCK_16X16] : mi_size_high[BLOCK_8X8]; int step_w = (xd->n8_w >= mi_size_wide[BLOCK_64X64]) ? mi_size_wide[BLOCK_16X16] : mi_size_wide[BLOCK_8X8]; for (int blk_row = 0; blk_row < blk_row_end; blk_row += step_h) { for (int blk_col = 0; blk_col < blk_col_end; blk_col += step_w) { int ret = add_tpl_ref_mv(cm, xd, mi_row, mi_col, ref_frame, blk_row, blk_col, gm_mv_candidates, refmv_count, ref_mv_stack, mode_context); if (blk_row == 0 && blk_col == 0) is_available = ret; } } if (is_available == 0) mode_context[ref_frame] |= (1 << GLOBALMV_OFFSET); for (int i = 0; i < 3 && allow_extension; ++i) { const int blk_row = tpl_sample_pos[i][0]; const int blk_col = tpl_sample_pos[i][1]; if (!check_sb_border(mi_row, mi_col, blk_row, blk_col)) continue; add_tpl_ref_mv(cm, xd, mi_row, mi_col, ref_frame, blk_row, blk_col, gm_mv_candidates, refmv_count, ref_mv_stack, mode_context); } } uint8_t dummy_newmv_count = 0; // Scan the second outer area. scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, -1, ref_mv_stack[ref_frame], &row_match_count, &dummy_newmv_count, gm_mv_candidates, &refmv_count[ref_frame]); for (int idx = 2; idx <= MVREF_ROW_COLS; ++idx) { const int row_offset = -(idx << 1) + 1 + row_adj; const int col_offset = -(idx << 1) + 1 + col_adj; if (abs(row_offset) <= abs(max_row_offset) && abs(row_offset) > processed_rows) scan_row_mbmi(cm, xd, mi_row, mi_col, rf, row_offset, ref_mv_stack[ref_frame], &refmv_count[ref_frame], &row_match_count, &dummy_newmv_count, gm_mv_candidates, max_row_offset, &processed_rows); if (abs(col_offset) <= abs(max_col_offset) && abs(col_offset) > processed_cols) scan_col_mbmi(cm, xd, mi_row, mi_col, rf, col_offset, ref_mv_stack[ref_frame], &refmv_count[ref_frame], &col_match_count, &dummy_newmv_count, gm_mv_candidates, max_col_offset, &processed_cols); } uint8_t ref_match_count = (row_match_count > 0) + (col_match_count > 0); switch (nearest_match) { case 0: mode_context[ref_frame] |= 0; if (ref_match_count >= 1) mode_context[ref_frame] |= 1; if (ref_match_count == 1) mode_context[ref_frame] |= (1 << REFMV_OFFSET); else if (ref_match_count >= 2) mode_context[ref_frame] |= (2 << REFMV_OFFSET); break; case 1: mode_context[ref_frame] |= (newmv_count > 0) ? 2 : 3; if (ref_match_count == 1) mode_context[ref_frame] |= (3 << REFMV_OFFSET); else if (ref_match_count >= 2) mode_context[ref_frame] |= (4 << REFMV_OFFSET); break; case 2: default: if (newmv_count >= 1) mode_context[ref_frame] |= 4; else mode_context[ref_frame] |= 5; mode_context[ref_frame] |= (5 << REFMV_OFFSET); break; } // Rank the likelihood and assign nearest and near mvs. int len = nearest_refmv_count; while (len > 0) { int nr_len = 0; for (int idx = 1; idx < len; ++idx) { if (ref_mv_stack[ref_frame][idx - 1].weight < ref_mv_stack[ref_frame][idx].weight) { CANDIDATE_MV tmp_mv = ref_mv_stack[ref_frame][idx - 1]; ref_mv_stack[ref_frame][idx - 1] = ref_mv_stack[ref_frame][idx]; ref_mv_stack[ref_frame][idx] = tmp_mv; nr_len = idx; } } len = nr_len; } len = refmv_count[ref_frame]; while (len > nearest_refmv_count) { int nr_len = nearest_refmv_count; for (int idx = nearest_refmv_count + 1; idx < len; ++idx) { if (ref_mv_stack[ref_frame][idx - 1].weight < ref_mv_stack[ref_frame][idx].weight) { CANDIDATE_MV tmp_mv = ref_mv_stack[ref_frame][idx - 1]; ref_mv_stack[ref_frame][idx - 1] = ref_mv_stack[ref_frame][idx]; ref_mv_stack[ref_frame][idx] = tmp_mv; nr_len = idx; } } len = nr_len; } if (rf[1] > NONE_FRAME) { // TODO(jingning, yunqing): Refactor and consolidate the compound and // single reference frame modes. Reduce unnecessary redundancy. if (refmv_count[ref_frame] < MAX_MV_REF_CANDIDATES) { int_mv ref_id[2][2], ref_diff[2][2]; int ref_id_count[2] = { 0 }, ref_diff_count[2] = { 0 }; int mi_width = AOMMIN(mi_size_wide[BLOCK_64X64], xd->n8_w); mi_width = AOMMIN(mi_width, cm->mi_cols - mi_col); int mi_height = AOMMIN(mi_size_high[BLOCK_64X64], xd->n8_h); mi_height = AOMMIN(mi_height, cm->mi_rows - mi_row); int mi_size = AOMMIN(mi_width, mi_height); for (int idx = 0; abs(max_row_offset) >= 1 && idx < mi_size;) { const MB_MODE_INFO *const candidate = &xd->mi[-xd->mi_stride + idx]; const int candidate_bsize = candidate->sb_type; for (int rf_idx = 0; rf_idx < 2; ++rf_idx) { MV_REFERENCE_FRAME can_rf = candidate->ref_frame[rf_idx]; for (int cmp_idx = 0; cmp_idx < 2; ++cmp_idx) { if (can_rf == rf[cmp_idx] && ref_id_count[cmp_idx] < 2) { ref_id[cmp_idx][ref_id_count[cmp_idx]] = candidate->mv[rf_idx]; ++ref_id_count[cmp_idx]; } else if (can_rf > INTRA_FRAME && ref_diff_count[cmp_idx] < 2) { int_mv this_mv = candidate->mv[rf_idx]; if (cm->ref_frame_sign_bias[can_rf] != cm->ref_frame_sign_bias[rf[cmp_idx]]) { this_mv.as_mv.row = -this_mv.as_mv.row; this_mv.as_mv.col = -this_mv.as_mv.col; } ref_diff[cmp_idx][ref_diff_count[cmp_idx]] = this_mv; ++ref_diff_count[cmp_idx]; } } } idx += mi_size_wide[candidate_bsize]; } for (int idx = 0; abs(max_col_offset) >= 1 && idx < mi_size;) { const MB_MODE_INFO *const candidate = &xd->mi[idx * xd->mi_stride - 1]; const int candidate_bsize = candidate->sb_type; for (int rf_idx = 0; rf_idx < 2; ++rf_idx) { MV_REFERENCE_FRAME can_rf = candidate->ref_frame[rf_idx]; for (int cmp_idx = 0; cmp_idx < 2; ++cmp_idx) { if (can_rf == rf[cmp_idx] && ref_id_count[cmp_idx] < 2) { ref_id[cmp_idx][ref_id_count[cmp_idx]] = candidate->mv[rf_idx]; ++ref_id_count[cmp_idx]; } else if (can_rf > INTRA_FRAME && ref_diff_count[cmp_idx] < 2) { int_mv this_mv = candidate->mv[rf_idx]; if (cm->ref_frame_sign_bias[can_rf] != cm->ref_frame_sign_bias[rf[cmp_idx]]) { this_mv.as_mv.row = -this_mv.as_mv.row; this_mv.as_mv.col = -this_mv.as_mv.col; } ref_diff[cmp_idx][ref_diff_count[cmp_idx]] = this_mv; ++ref_diff_count[cmp_idx]; } } } idx += mi_size_high[candidate_bsize]; } // Build up the compound mv predictor int_mv comp_list[3][2]; for (int idx = 0; idx < 2; ++idx) { int comp_idx = 0; for (int list_idx = 0; list_idx < ref_id_count[idx] && comp_idx < 2; ++list_idx, ++comp_idx) comp_list[comp_idx][idx] = ref_id[idx][list_idx]; for (int list_idx = 0; list_idx < ref_diff_count[idx] && comp_idx < 2; ++list_idx, ++comp_idx) comp_list[comp_idx][idx] = ref_diff[idx][list_idx]; for (; comp_idx < 3; ++comp_idx) comp_list[comp_idx][idx] = gm_mv_candidates[idx]; } if (refmv_count[ref_frame]) { assert(refmv_count[ref_frame] == 1); if (comp_list[0][0].as_int == ref_mv_stack[ref_frame][0].this_mv.as_int && comp_list[0][1].as_int == ref_mv_stack[ref_frame][0].comp_mv.as_int) { ref_mv_stack[ref_frame][refmv_count[ref_frame]].this_mv = comp_list[1][0]; ref_mv_stack[ref_frame][refmv_count[ref_frame]].comp_mv = comp_list[1][1]; } else { ref_mv_stack[ref_frame][refmv_count[ref_frame]].this_mv = comp_list[0][0]; ref_mv_stack[ref_frame][refmv_count[ref_frame]].comp_mv = comp_list[0][1]; } ref_mv_stack[ref_frame][refmv_count[ref_frame]].weight = 2; ++refmv_count[ref_frame]; } else { for (int idx = 0; idx < MAX_MV_REF_CANDIDATES; ++idx) { ref_mv_stack[ref_frame][refmv_count[ref_frame]].this_mv = comp_list[idx][0]; ref_mv_stack[ref_frame][refmv_count[ref_frame]].comp_mv = comp_list[idx][1]; ref_mv_stack[ref_frame][refmv_count[ref_frame]].weight = 2; ++refmv_count[ref_frame]; } } } assert(refmv_count[ref_frame] >= 2); for (int idx = 0; idx < refmv_count[ref_frame]; ++idx) { clamp_mv_ref(&ref_mv_stack[ref_frame][idx].this_mv.as_mv, xd->n8_w << MI_SIZE_LOG2, xd->n8_h << MI_SIZE_LOG2, xd); clamp_mv_ref(&ref_mv_stack[ref_frame][idx].comp_mv.as_mv, xd->n8_w << MI_SIZE_LOG2, xd->n8_h << MI_SIZE_LOG2, xd); } } else { // Handle single reference frame extension int mi_width = AOMMIN(mi_size_wide[BLOCK_64X64], xd->n8_w); mi_width = AOMMIN(mi_width, cm->mi_cols - mi_col); int mi_height = AOMMIN(mi_size_high[BLOCK_64X64], xd->n8_h); mi_height = AOMMIN(mi_height, cm->mi_rows - mi_row); int mi_size = AOMMIN(mi_width, mi_height); for (int idx = 0; abs(max_row_offset) >= 1 && idx < mi_size && refmv_count[ref_frame] < MAX_MV_REF_CANDIDATES;) { const MB_MODE_INFO *const candidate = &xd->mi[-xd->mi_stride + idx]; const int candidate_bsize = candidate->sb_type; // TODO(jingning): Refactor the following code. for (int rf_idx = 0; rf_idx < 2; ++rf_idx) { if (candidate->ref_frame[rf_idx] > INTRA_FRAME) { int_mv this_mv = candidate->mv[rf_idx]; if (cm->ref_frame_sign_bias[candidate->ref_frame[rf_idx]] != cm->ref_frame_sign_bias[ref_frame]) { this_mv.as_mv.row = -this_mv.as_mv.row; this_mv.as_mv.col = -this_mv.as_mv.col; } int stack_idx; for (stack_idx = 0; stack_idx < refmv_count[ref_frame]; ++stack_idx) { int_mv stack_mv = ref_mv_stack[ref_frame][stack_idx].this_mv; if (this_mv.as_int == stack_mv.as_int) break; } if (stack_idx == refmv_count[ref_frame]) { ref_mv_stack[ref_frame][stack_idx].this_mv = this_mv; // TODO(jingning): Set an arbitrary small number here. The weight // doesn't matter as long as it is properly initialized. ref_mv_stack[ref_frame][stack_idx].weight = 2; ++refmv_count[ref_frame]; } } } idx += mi_size_wide[candidate_bsize]; } for (int idx = 0; abs(max_col_offset) >= 1 && idx < mi_size && refmv_count[ref_frame] < MAX_MV_REF_CANDIDATES;) { const MB_MODE_INFO *const candidate = &xd->mi[idx * xd->mi_stride - 1]; const int candidate_bsize = candidate->sb_type; // TODO(jingning): Refactor the following code. for (int rf_idx = 0; rf_idx < 2; ++rf_idx) { if (candidate->ref_frame[rf_idx] > INTRA_FRAME) { int_mv this_mv = candidate->mv[rf_idx]; if (cm->ref_frame_sign_bias[candidate->ref_frame[rf_idx]] != cm->ref_frame_sign_bias[ref_frame]) { this_mv.as_mv.row = -this_mv.as_mv.row; this_mv.as_mv.col = -this_mv.as_mv.col; } int stack_idx; for (stack_idx = 0; stack_idx < refmv_count[ref_frame]; ++stack_idx) { int_mv stack_mv = ref_mv_stack[ref_frame][stack_idx].this_mv; if (this_mv.as_int == stack_mv.as_int) break; } if (stack_idx == refmv_count[ref_frame]) { ref_mv_stack[ref_frame][stack_idx].this_mv = this_mv; // TODO(jingning): Set an arbitrary small number here. The weight // doesn't matter as long as it is properly initialized. ref_mv_stack[ref_frame][stack_idx].weight = 2; ++refmv_count[ref_frame]; } } } idx += mi_size_high[candidate_bsize]; } for (int idx = 0; idx < refmv_count[ref_frame]; ++idx) { clamp_mv_ref(&ref_mv_stack[ref_frame][idx].this_mv.as_mv, xd->n8_w << MI_SIZE_LOG2, xd->n8_h << MI_SIZE_LOG2, xd); } if (mv_ref_list != NULL) { for (int idx = refmv_count[ref_frame]; idx < MAX_MV_REF_CANDIDATES; ++idx) mv_ref_list[rf[0]][idx].as_int = gm_mv_candidates[0].as_int; for (int idx = 0; idx < AOMMIN(MAX_MV_REF_CANDIDATES, refmv_count[ref_frame]); ++idx) { mv_ref_list[rf[0]][idx].as_int = ref_mv_stack[ref_frame][idx].this_mv.as_int; } } } } static void av1_find_mv_refs(const AV1_COMMON *cm, const MACROBLOCKD *xd, MB_MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame, uint8_t ref_mv_count[MODE_CTX_REF_FRAMES], CANDIDATE_MV ref_mv_stack[][MAX_REF_MV_STACK_SIZE], int_mv mv_ref_list[][MAX_MV_REF_CANDIDATES], int_mv *global_mvs, int mi_row, int mi_col, int16_t *mode_context) { int_mv zeromv[2]; BLOCK_SIZE bsize = mi->sb_type; MV_REFERENCE_FRAME rf[2]; av1_set_ref_frame(rf, ref_frame); if (ref_frame < REF_FRAMES) { if (ref_frame != INTRA_FRAME) { global_mvs[ref_frame] = gm_get_motion_vector( &cm->global_motion[ref_frame], cm->allow_high_precision_mv, bsize, mi_col, mi_row, cm->cur_frame_force_integer_mv); } else { global_mvs[ref_frame].as_int = INVALID_MV; } } if (ref_frame != INTRA_FRAME) { zeromv[0].as_int = gm_get_motion_vector(&cm->global_motion[rf[0]], cm->allow_high_precision_mv, bsize, mi_col, mi_row, cm->cur_frame_force_integer_mv) .as_int; zeromv[1].as_int = (rf[1] != NONE_FRAME) ? gm_get_motion_vector(&cm->global_motion[rf[1]], cm->allow_high_precision_mv, bsize, mi_col, mi_row, cm->cur_frame_force_integer_mv) .as_int : 0; } else { zeromv[0].as_int = zeromv[1].as_int = 0; } setup_ref_mv_list(cm, xd, ref_frame, ref_mv_count, ref_mv_stack, mv_ref_list, zeromv, mi_row, mi_col, mode_context); } static void av1_setup_frame_buf_refs(AV1_COMMON *cm) { cm->cur_frame.cur_frame_offset = cm->frame_offset; MV_REFERENCE_FRAME ref_frame; for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) { const int buf_idx = cm->frame_refs[ref_frame - LAST_FRAME].idx; if (buf_idx >= 0) cm->cur_frame.ref_frame_offset[ref_frame - LAST_FRAME] = cm->buffer_pool.frame_bufs[buf_idx].cur_frame_offset; } } #define MAX_OFFSET_WIDTH 64 #define MAX_OFFSET_HEIGHT 0 static int get_block_position(AV1_COMMON *cm, int *mi_r, int *mi_c, int blk_row, int blk_col, MV mv, int sign_bias) { const int base_blk_row = (blk_row >> 3) << 3; const int base_blk_col = (blk_col >> 3) << 3; const int row_offset = (mv.row >= 0) ? (mv.row >> (4 + MI_SIZE_LOG2)) : -((-mv.row) >> (4 + MI_SIZE_LOG2)); const int col_offset = (mv.col >= 0) ? (mv.col >> (4 + MI_SIZE_LOG2)) : -((-mv.col) >> (4 + MI_SIZE_LOG2)); int row = (sign_bias == 1) ? blk_row - row_offset : blk_row + row_offset; int col = (sign_bias == 1) ? blk_col - col_offset : blk_col + col_offset; if (row < 0 || row >= (cm->mi_rows >> 1) || col < 0 || col >= (cm->mi_cols >> 1)) return 0; if (row < base_blk_row - (MAX_OFFSET_HEIGHT >> 3) || row >= base_blk_row + 8 + (MAX_OFFSET_HEIGHT >> 3) || col < base_blk_col - (MAX_OFFSET_WIDTH >> 3) || col >= base_blk_col + 8 + (MAX_OFFSET_WIDTH >> 3)) return 0; *mi_r = row; *mi_c = col; return 1; } static int motion_field_projection(AV1_COMMON *cm, MV_REFERENCE_FRAME ref_frame, int dir, const int from_x4, const int to_x4, const int from_y4, const int to_y4) { TPL_MV_REF *tpl_mvs_base = cm->tpl_mvs; int ref_offset[TOTAL_REFS_PER_FRAME] = { 0 }; int ref_sign[TOTAL_REFS_PER_FRAME] = { 0 }; (void)dir; int ref_frame_idx = cm->frame_refs[FWD_RF_OFFSET(ref_frame)].idx; if (ref_frame_idx < 0) return 0; if (cm->buffer_pool.frame_bufs[ref_frame_idx].intra_only) return 0; if (cm->buffer_pool.frame_bufs[ref_frame_idx].mi_rows != cm->mi_rows || cm->buffer_pool.frame_bufs[ref_frame_idx].mi_cols != cm->mi_cols) return 0; int ref_frame_index = cm->buffer_pool.frame_bufs[ref_frame_idx].cur_frame_offset; unsigned int *ref_rf_idx = &cm->buffer_pool.frame_bufs[ref_frame_idx].ref_frame_offset[0]; int cur_frame_index = cm->cur_frame.cur_frame_offset; int ref_to_cur = get_relative_dist(cm, ref_frame_index, cur_frame_index); for (MV_REFERENCE_FRAME rf = LAST_FRAME; rf <= INTER_REFS_PER_FRAME; ++rf) { ref_offset[rf] = get_relative_dist(cm, ref_frame_index, ref_rf_idx[rf - LAST_FRAME]); // note the inverted sign ref_sign[rf] = get_relative_dist(cm, ref_rf_idx[rf - LAST_FRAME], ref_frame_index) < 0; } if (dir == 2) ref_to_cur = -ref_to_cur; MV_REF *mv_ref_base = cm->buffer_pool.frame_bufs[ref_frame_idx].mvs; const ptrdiff_t mv_stride = cm->buffer_pool.frame_bufs[ref_frame_idx].mv_stride; const int mvs_rows = (cm->mi_rows + 1) >> 1; const int mvs_cols = (cm->mi_cols + 1) >> 1; assert(from_y4 >= 0); const int row_start8 = from_y4 >> 1; const int row_end8 = imin(to_y4 >> 1, mvs_rows); const int col_start8 = imax((from_x4 - (MAX_OFFSET_WIDTH >> 2)) >> 1, 0); const int col_end8 = imin((to_x4 + (MAX_OFFSET_WIDTH >> 2)) >> 1, mvs_cols); for (int blk_row = row_start8; blk_row < row_end8; ++blk_row) { for (int blk_col = col_start8; blk_col < col_end8; ++blk_col) { MV_REF *mv_ref = &mv_ref_base[((blk_row << 1) + 1) * mv_stride + (blk_col << 1) + 1]; int diridx; const int ref0 = mv_ref->ref_frame[0], ref1 = mv_ref->ref_frame[1]; if (ref1 > 0 && ref_sign[ref1] && abs(mv_ref->mv[1].as_mv.row) < (1 << 12) && abs(mv_ref->mv[1].as_mv.col) < (1 << 12)) { diridx = 1; } else if (ref0 > 0 && ref_sign[ref0] && abs(mv_ref->mv[0].as_mv.row) < (1 << 12) && abs(mv_ref->mv[0].as_mv.col) < (1 << 12)) { diridx = 0; } else { continue; } MV fwd_mv = mv_ref->mv[diridx].as_mv; if (mv_ref->ref_frame[diridx] > INTRA_FRAME) { int_mv this_mv; int mi_r, mi_c; const int ref_frame_offset = ref_offset[mv_ref->ref_frame[diridx]]; int pos_valid = abs(ref_frame_offset) <= MAX_FRAME_DISTANCE && ref_frame_offset > 0 && abs(ref_to_cur) <= MAX_FRAME_DISTANCE; if (pos_valid) { get_mv_projection(&this_mv.as_mv, fwd_mv, ref_to_cur, ref_frame_offset); pos_valid = get_block_position(cm, &mi_r, &mi_c, blk_row, blk_col, this_mv.as_mv, dir >> 1); } if (pos_valid && mi_c >= (from_x4 >> 1) && mi_c < (to_x4 >> 1)) { int mi_offset = mi_r * (cm->mi_stride >> 1) + mi_c; tpl_mvs_base[mi_offset].mfmv0.as_mv.row = fwd_mv.row; tpl_mvs_base[mi_offset].mfmv0.as_mv.col = fwd_mv.col; tpl_mvs_base[mi_offset].ref_frame_offset = ref_frame_offset; } } } } return 1; } static void av1_setup_motion_field(AV1_COMMON *cm) { if (!cm->seq_params.enable_order_hint) return; TPL_MV_REF *tpl_mvs_base = cm->tpl_mvs; int size = (((cm->mi_rows + 31) & ~31) >> 1) * (cm->mi_stride >> 1); for (int idx = 0; idx < size; ++idx) { tpl_mvs_base[idx].mfmv0.as_int = INVALID_MV; tpl_mvs_base[idx].ref_frame_offset = 0; } memset(cm->ref_frame_side, 0, sizeof(cm->ref_frame_side)); RefCntBuffer *const frame_bufs = cm->buffer_pool.frame_bufs; const int cur_order_hint = cm->cur_frame.cur_frame_offset; int *const ref_buf_idx = cm->ref_buf_idx; int *const ref_order_hint = cm->ref_order_hint; for (int ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) { const int ref_idx = ref_frame - LAST_FRAME; const int buf_idx = cm->frame_refs[ref_idx].idx; int order_hint = 0; if (buf_idx >= 0) order_hint = frame_bufs[buf_idx].cur_frame_offset; ref_buf_idx[ref_idx] = buf_idx; ref_order_hint[ref_idx] = order_hint; if (get_relative_dist(cm, order_hint, cur_order_hint) > 0) cm->ref_frame_side[ref_frame] = 1; else if (order_hint == cur_order_hint) cm->ref_frame_side[ref_frame] = -1; } } enum BlockSize { BS_128x128, BS_128x64, BS_64x128, BS_64x64, BS_64x32, BS_64x16, BS_32x64, BS_32x32, BS_32x16, BS_32x8, BS_16x64, BS_16x32, BS_16x16, BS_16x8, BS_16x4, BS_8x32, BS_8x16, BS_8x8, BS_8x4, BS_4x16, BS_4x8, BS_4x4, N_BS_SIZES, }; extern const uint8_t dav1d_block_dimensions[N_BS_SIZES][4]; const uint8_t bs_to_sbtype[N_BS_SIZES] = { [BS_128x128] = BLOCK_128X128, [BS_128x64] = BLOCK_128X64, [BS_64x128] = BLOCK_64X128, [BS_64x64] = BLOCK_64X64, [BS_64x32] = BLOCK_64X32, [BS_64x16] = BLOCK_64X16, [BS_32x64] = BLOCK_32X64, [BS_32x32] = BLOCK_32X32, [BS_32x16] = BLOCK_32X16, [BS_32x8] = BLOCK_32X8, [BS_16x64] = BLOCK_16X64, [BS_16x32] = BLOCK_16X32, [BS_16x16] = BLOCK_16X16, [BS_16x8] = BLOCK_16X8, [BS_16x4] = BLOCK_16X4, [BS_8x32] = BLOCK_8X32, [BS_8x16] = BLOCK_8X16, [BS_8x8] = BLOCK_8X8, [BS_8x4] = BLOCK_8X4, [BS_4x16] = BLOCK_4X16, [BS_4x8] = BLOCK_4X8, [BS_4x4] = BLOCK_4X4, }; const uint8_t sbtype_to_bs[BLOCK_SIZES_ALL] = { [BLOCK_128X128] = BS_128x128, [BLOCK_128X64] = BS_128x64, [BLOCK_64X128] = BS_64x128, [BLOCK_64X64] = BS_64x64, [BLOCK_64X32] = BS_64x32, [BLOCK_64X16] = BS_64x16, [BLOCK_32X64] = BS_32x64, [BLOCK_32X32] = BS_32x32, [BLOCK_32X16] = BS_32x16, [BLOCK_32X8] = BS_32x8, [BLOCK_16X64] = BS_16x64, [BLOCK_16X32] = BS_16x32, [BLOCK_16X16] = BS_16x16, [BLOCK_16X8] = BS_16x8, [BLOCK_16X4] = BS_16x4, [BLOCK_8X32] = BS_8x32, [BLOCK_8X16] = BS_8x16, [BLOCK_8X8] = BS_8x8, [BLOCK_8X4] = BS_8x4, [BLOCK_4X16] = BS_4x16, [BLOCK_4X8] = BS_4x8, [BLOCK_4X4] = BS_4x4, }; #include <stdio.h> void av1_find_ref_mvs(CANDIDATE_MV *mvstack, int *cnt, int_mv (*mvlist)[2], int *ctx, int refidx_dav1d[2], int w4, int h4, int bs, int bp, int by4, int bx4, int tile_col_start4, int tile_col_end4, int tile_row_start4, int tile_row_end4, AV1_COMMON *cm); void av1_find_ref_mvs(CANDIDATE_MV *mvstack, int *cnt, int_mv (*mvlist)[2], int *ctx, int refidx_dav1d[2], int w4, int h4, int bs, int bp, int by4, int bx4, int tile_col_start4, int tile_col_end4, int tile_row_start4, int tile_row_end4, AV1_COMMON *cm) { const int bw4 = dav1d_block_dimensions[bs][0]; const int bh4 = dav1d_block_dimensions[bs][1]; int stride = (int) cm->cur_frame.mv_stride; MACROBLOCKD xd = (MACROBLOCKD) { .n8_w = bw4, .n8_h = bh4, .mi_stride = stride, .up_available = by4 > tile_row_start4, .left_available = bx4 > tile_col_start4, .tile = { .mi_col_end = AOMMIN(w4, tile_col_end4), .mi_row_end = AOMMIN(h4, tile_row_end4), .tg_horz_boundary = 0, .mi_row_start = tile_row_start4, .mi_col_start = tile_col_start4, }, .mi = (MB_MODE_INFO *) &cm->cur_frame.mvs[by4 * stride + bx4], .mb_to_bottom_edge = (h4 - bh4 - by4) * 32, .mb_to_left_edge = -bx4 * 32, .mb_to_right_edge = (w4 - bw4 - bx4) * 32, .mb_to_top_edge = -by4 * 32, .is_sec_rect = 0, .cur_mi = { .partition = bp, }, }; xd.mi->sb_type = bs_to_sbtype[bs]; if (xd.n8_w < xd.n8_h) { // Only mark is_sec_rect as 1 for the last block. // For PARTITION_VERT_4, it would be (0, 0, 0, 1); // For other partitions, it would be (0, 1). if (!((bx4 + xd.n8_w) & (xd.n8_h - 1))) xd.is_sec_rect = 1; } if (xd.n8_w > xd.n8_h) if (by4 & (xd.n8_w - 1)) xd.is_sec_rect = 1; MV_REFERENCE_FRAME rf[2] = { refidx_dav1d[0] + 1, refidx_dav1d[1] + 1 }; const int refidx = av1_ref_frame_type(rf); int16_t single_context[MODE_CTX_REF_FRAMES]; uint8_t mv_cnt[MODE_CTX_REF_FRAMES]; CANDIDATE_MV mv_stack[MODE_CTX_REF_FRAMES][MAX_REF_MV_STACK_SIZE]; int_mv mv_list[MODE_CTX_REF_FRAMES][MAX_MV_REF_CANDIDATES]; int_mv gmvs[MODE_CTX_REF_FRAMES]; av1_find_mv_refs(cm, &xd, xd.mi, refidx, mv_cnt, mv_stack, mv_list, gmvs, by4, bx4, single_context); for (int i = 0; i < mv_cnt[refidx]; i++) mvstack[i] = mv_stack[refidx][i]; *cnt = mv_cnt[refidx]; mvlist[0][0] = mv_list[refidx_dav1d[0] + 1][0]; mvlist[0][1] = mv_list[refidx_dav1d[0] + 1][1]; if (refidx_dav1d[1] != -1) { mvlist[1][0] = mv_list[refidx_dav1d[1] + 1][0]; mvlist[1][1] = mv_list[refidx_dav1d[1] + 1][1]; } if (ctx) { if (refidx_dav1d[1] == -1) *ctx = single_context[refidx_dav1d[0] + 1]; else *ctx = av1_mode_context_analyzer(single_context, rf); } } int av1_init_ref_mv_common(AV1_COMMON *cm, const int w8, const int h8, const ptrdiff_t stride, const int allow_sb128, MV_REF *cur, MV_REF *ref_mvs[7], const unsigned cur_poc, const unsigned ref_poc[7], const unsigned ref_ref_poc[7][7], const Dav1dWarpedMotionParams gmv[7], const int allow_hp, const int force_int_mv, const int allow_ref_frame_mvs, const int order_hint); int av1_init_ref_mv_common(AV1_COMMON *cm, const int w8, const int h8, const ptrdiff_t stride, const int allow_sb128, MV_REF *cur, MV_REF *ref_mvs[7], const unsigned cur_poc, const unsigned ref_poc[7], const unsigned ref_ref_poc[7][7], const Dav1dWarpedMotionParams gmv[7], const int allow_hp, const int force_int_mv, const int allow_ref_frame_mvs, const int order_hint) { if (cm->mi_cols != (w8 << 1) || cm->mi_rows != (h8 << 1)) { const int align_h = (h8 + 15) & ~15; if (cm->tpl_mvs) free(cm->tpl_mvs); cm->tpl_mvs = malloc(sizeof(*cm->tpl_mvs) * (stride >> 1) * align_h); if (!cm->tpl_mvs) return -ENOMEM; for (int i = 0; i < 7; i++) cm->frame_refs[i].idx = i; cm->mi_cols = w8 << 1; cm->mi_rows = h8 << 1; cm->mi_stride = (int) stride; for (int i = 0; i < 7; i++) { cm->buffer_pool.frame_bufs[i].mi_rows = cm->mi_rows; cm->buffer_pool.frame_bufs[i].mi_cols = cm->mi_cols; cm->buffer_pool.frame_bufs[i].mv_stride = stride; } cm->cur_frame.mv_stride = stride; } cm->allow_high_precision_mv = allow_hp; cm->seq_params.sb_size = allow_sb128 ? BLOCK_128X128 : BLOCK_64X64; cm->seq_params.enable_order_hint = !!order_hint; cm->seq_params.order_hint_bits_minus1 = order_hint - 1; // FIXME get these from the sequence/frame headers instead of hardcoding cm->frame_parallel_decode = 0; cm->cur_frame_force_integer_mv = force_int_mv; memcpy(&cm->global_motion[1], gmv, sizeof(*gmv) * 7); cm->frame_offset = cur_poc; cm->allow_ref_frame_mvs = allow_ref_frame_mvs; cm->cur_frame.mvs = cur; for (int i = 0; i < 7; i++) { cm->buffer_pool.frame_bufs[i].mvs = ref_mvs[i]; cm->buffer_pool.frame_bufs[i].intra_only = ref_mvs[i] == NULL; cm->buffer_pool.frame_bufs[i].cur_frame_offset = ref_poc[i]; for (int j = 0; j < 7; j++) cm->buffer_pool.frame_bufs[i].ref_frame_offset[j] = ref_ref_poc[i][j]; } av1_setup_frame_buf_refs(cm); for (int i = 0; i < 7; i++) { const int ref_poc = cm->buffer_pool.frame_bufs[i].cur_frame_offset; cm->ref_frame_sign_bias[1 + i] = get_relative_dist(cm, ref_poc, cur_poc) > 0; } if (allow_ref_frame_mvs) { av1_setup_motion_field(cm); } return 0; } void av1_init_ref_mv_tile_row(AV1_COMMON *cm, int tile_col_start4, int tile_col_end4, int row_start4, int row_end4); void av1_init_ref_mv_tile_row(AV1_COMMON *cm, int tile_col_start4, int tile_col_end4, int row_start4, int row_end4) { RefCntBuffer *const frame_bufs = cm->buffer_pool.frame_bufs; const int cur_order_hint = cm->cur_frame.cur_frame_offset; int *const ref_buf_idx = cm->ref_buf_idx; int *const ref_order_hint = cm->ref_order_hint; int ref_stamp = MFMV_STACK_SIZE - 1; if (ref_buf_idx[LAST_FRAME - LAST_FRAME] >= 0) { const int alt_of_lst_order_hint = frame_bufs[ref_buf_idx[LAST_FRAME - LAST_FRAME]] .ref_frame_offset[ALTREF_FRAME - LAST_FRAME]; const int is_lst_overlay = (alt_of_lst_order_hint == ref_order_hint[GOLDEN_FRAME - LAST_FRAME]); if (!is_lst_overlay) motion_field_projection(cm, LAST_FRAME, 2, tile_col_start4, tile_col_end4, row_start4, row_end4); --ref_stamp; } if (get_relative_dist(cm, ref_order_hint[BWDREF_FRAME - LAST_FRAME], cur_order_hint) > 0) { if (motion_field_projection(cm, BWDREF_FRAME, 0, tile_col_start4, tile_col_end4, row_start4, row_end4)) --ref_stamp; } if (get_relative_dist(cm, ref_order_hint[ALTREF2_FRAME - LAST_FRAME], cur_order_hint) > 0) { if (motion_field_projection(cm, ALTREF2_FRAME, 0, tile_col_start4, tile_col_end4, row_start4, row_end4)) --ref_stamp; } if (get_relative_dist(cm, ref_order_hint[ALTREF_FRAME - LAST_FRAME], cur_order_hint) > 0 && ref_stamp >= 0) if (motion_field_projection(cm, ALTREF_FRAME, 0, tile_col_start4, tile_col_end4, row_start4, row_end4)) --ref_stamp; if (ref_stamp >= 0 && ref_buf_idx[LAST2_FRAME - LAST_FRAME] >= 0) if (motion_field_projection(cm, LAST2_FRAME, 2, tile_col_start4, tile_col_end4, row_start4, row_end4)) --ref_stamp; } AV1_COMMON *av1_alloc_ref_mv_common(void); AV1_COMMON *av1_alloc_ref_mv_common(void) { AV1_COMMON *cm = malloc(sizeof(*cm)); if (!cm) return NULL; memset(cm, 0, sizeof(*cm)); return cm; } void av1_free_ref_mv_common(AV1_COMMON *cm); void av1_free_ref_mv_common(AV1_COMMON *cm) { if (cm->tpl_mvs) free(cm->tpl_mvs); free(cm); }