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diff --git a/third_party/aom/av1/common/mvref_common.h b/third_party/aom/av1/common/mvref_common.h
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+/*
+ * 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
+
+#if CONFIG_REF_MV
+#define MVREF_NEIGHBOURS 9
+#else
+#define MVREF_NEIGHBOURS 8
+#endif
+
+typedef struct position {
+ int row;
+ int col;
+} POSITION;
+
+typedef enum {
+ BOTH_ZERO = 0,
+ ZERO_PLUS_PREDICTED = 1,
+ BOTH_PREDICTED = 2,
+ NEW_PLUS_NON_INTRA = 3,
+ BOTH_NEW = 4,
+ INTRA_PLUS_NON_INTRA = 5,
+ BOTH_INTRA = 6,
+ INVALID_CASE = 9
+} motion_vector_context;
+
+// This is used to figure out a context for the ref blocks. The code flattens
+// an array that would have 3 possible counts (0, 1 & 2) for 3 choices by
+// adding 9 for each intra block, 3 for each zero mv and 1 for each new
+// motion vector. This single number is then converted into a context
+// with a single lookup ( counter_to_context ).
+static const int mode_2_counter[MB_MODE_COUNT] = {
+ 9, // DC_PRED
+ 9, // V_PRED
+ 9, // H_PRED
+ 9, // D45_PRED
+ 9, // D135_PRED
+ 9, // D117_PRED
+ 9, // D153_PRED
+ 9, // D207_PRED
+ 9, // D63_PRED
+#if CONFIG_ALT_INTRA
+ 9, // SMOOTH_PRED
+#endif // CONFIG_ALT_INTRA
+ 9, // TM_PRED
+ 0, // NEARESTMV
+ 0, // NEARMV
+ 3, // ZEROMV
+ 1, // NEWMV
+#if CONFIG_EXT_INTER
+#if CONFIG_COMPOUND_SINGLEREF
+ 0, // SR_NEAREST_NEARMV
+ 1, // SR_NEAREST_NEWMV
+ 1, // SR_NEAR_NEWMV
+ 3, // SR_ZERO_NEWMV
+ 1, // SR_NEW_NEWMV
+#endif // CONFIG_COMPOUND_SINGLEREF
+ 0, // NEAREST_NEARESTMV
+ 0, // NEAREST_NEARMV
+ 0, // NEAR_NEARESTMV
+ 0, // NEAR_NEARMV
+ 1, // NEAREST_NEWMV
+ 1, // NEW_NEARESTMV
+ 1, // NEAR_NEWMV
+ 1, // NEW_NEARMV
+ 3, // ZERO_ZEROMV
+ 1, // NEW_NEWMV
+#endif // CONFIG_EXT_INTER
+};
+
+// There are 3^3 different combinations of 3 counts that can be either 0,1 or
+// 2. However the actual count can never be greater than 2 so the highest
+// counter we need is 18. 9 is an invalid counter that's never used.
+static const int counter_to_context[19] = {
+ BOTH_PREDICTED, // 0
+ NEW_PLUS_NON_INTRA, // 1
+ BOTH_NEW, // 2
+ ZERO_PLUS_PREDICTED, // 3
+ NEW_PLUS_NON_INTRA, // 4
+ INVALID_CASE, // 5
+ BOTH_ZERO, // 6
+ INVALID_CASE, // 7
+ INVALID_CASE, // 8
+ INTRA_PLUS_NON_INTRA, // 9
+ INTRA_PLUS_NON_INTRA, // 10
+ INVALID_CASE, // 11
+ INTRA_PLUS_NON_INTRA, // 12
+ INVALID_CASE, // 13
+ INVALID_CASE, // 14
+ INVALID_CASE, // 15
+ INVALID_CASE, // 16
+ INVALID_CASE, // 17
+ BOTH_INTRA // 18
+};
+
+#if !CONFIG_REF_MV
+static const POSITION mv_ref_blocks[BLOCK_SIZES][MVREF_NEIGHBOURS] = {
+ // 4X4
+ { { -1, 0 },
+ { 0, -1 },
+ { -1, -1 },
+ { -2, 0 },
+ { 0, -2 },
+ { -2, -1 },
+ { -1, -2 },
+ { -2, -2 } },
+ // 4X8
+ { { -1, 0 },
+ { 0, -1 },
+ { -1, -1 },
+ { -2, 0 },
+ { 0, -2 },
+ { -2, -1 },
+ { -1, -2 },
+ { -2, -2 } },
+ // 8X4
+ { { -1, 0 },
+ { 0, -1 },
+ { -1, -1 },
+ { -2, 0 },
+ { 0, -2 },
+ { -2, -1 },
+ { -1, -2 },
+ { -2, -2 } },
+ // 8X8
+ { { -1, 0 },
+ { 0, -1 },
+ { -1, -1 },
+ { -2, 0 },
+ { 0, -2 },
+ { -2, -1 },
+ { -1, -2 },
+ { -2, -2 } },
+ // 8X16
+ { { 0, -1 },
+ { -1, 0 },
+ { 1, -1 },
+ { -1, -1 },
+ { 0, -2 },
+ { -2, 0 },
+ { -2, -1 },
+ { -1, -2 } },
+ // 16X8
+ { { -1, 0 },
+ { 0, -1 },
+ { -1, 1 },
+ { -1, -1 },
+ { -2, 0 },
+ { 0, -2 },
+ { -1, -2 },
+ { -2, -1 } },
+ // 16X16
+ { { -1, 0 },
+ { 0, -1 },
+ { -1, 1 },
+ { 1, -1 },
+ { -1, -1 },
+ { -3, 0 },
+ { 0, -3 },
+ { -3, -3 } },
+ // 16X32
+ { { 0, -1 },
+ { -1, 0 },
+ { 2, -1 },
+ { -1, -1 },
+ { -1, 1 },
+ { 0, -3 },
+ { -3, 0 },
+ { -3, -3 } },
+ // 32X16
+ { { -1, 0 },
+ { 0, -1 },
+ { -1, 2 },
+ { -1, -1 },
+ { 1, -1 },
+ { -3, 0 },
+ { 0, -3 },
+ { -3, -3 } },
+ // 32X32
+ { { -1, 1 },
+ { 1, -1 },
+ { -1, 2 },
+ { 2, -1 },
+ { -1, -1 },
+ { -3, 0 },
+ { 0, -3 },
+ { -3, -3 } },
+ // 32X64
+ { { 0, -1 },
+ { -1, 0 },
+ { 4, -1 },
+ { -1, 2 },
+ { -1, -1 },
+ { 0, -3 },
+ { -3, 0 },
+ { 2, -1 } },
+ // 64X32
+ { { -1, 0 },
+ { 0, -1 },
+ { -1, 4 },
+ { 2, -1 },
+ { -1, -1 },
+ { -3, 0 },
+ { 0, -3 },
+ { -1, 2 } },
+ // 64X64
+ { { -1, 3 },
+ { 3, -1 },
+ { -1, 4 },
+ { 4, -1 },
+ { -1, -1 },
+ { -1, 0 },
+ { 0, -1 },
+ { -1, 6 } },
+#if CONFIG_EXT_PARTITION
+ // TODO(debargha/jingning) Making them twice the 32x64, .. ones above
+ // 64x128
+ { { 0, -2 },
+ { -2, 0 },
+ { 8, -2 },
+ { -2, 4 },
+ { -2, -2 },
+ { 0, -6 },
+ { -6, 0 },
+ { 4, -2 } },
+ // 128x64
+ { { -2, 0 },
+ { 0, -2 },
+ { -2, 8 },
+ { 4, -2 },
+ { -2, -2 },
+ { -6, 0 },
+ { 0, -6 },
+ { -2, 4 } },
+ // 128x128
+ { { -2, 6 },
+ { 6, -2 },
+ { -2, 8 },
+ { 8, -2 },
+ { -2, -2 },
+ { -2, 0 },
+ { 0, -2 },
+ { -2, 12 } },
+#endif // CONFIG_EXT_PARTITION
+};
+#endif
+
+static const int idx_n_column_to_subblock[4][2] = {
+ { 1, 2 }, { 1, 3 }, { 3, 2 }, { 3, 3 }
+};
+
+// clamp_mv_ref
+#if CONFIG_EXT_PARTITION
+#define MV_BORDER (16 << 3) // Allow 16 pels in 1/8th pel units
+#else
+#define MV_BORDER (8 << 3) // Allow 8 pels in 1/8th pel units
+#endif // CONFIG_EXT_PARTITION
+
+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 MODE_INFO *candidate, int which_mv,
+ int search_col, int block_idx) {
+#if CONFIG_REF_MV
+ (void)search_col;
+ (void)block_idx;
+ return candidate->mbmi.mv[which_mv];
+#else
+ return block_idx >= 0 && candidate->mbmi.sb_type < BLOCK_8X8
+ ? candidate
+ ->bmi[idx_n_column_to_subblock[block_idx][search_col == 0]]
+ .as_mv[which_mv]
+ : candidate->mbmi.mv[which_mv];
+#endif
+}
+
+#if CONFIG_REF_MV
+static INLINE int_mv get_sub_block_pred_mv(const MODE_INFO *candidate,
+ int which_mv, int search_col,
+ int block_idx) {
+ (void)search_col;
+ (void)block_idx;
+ return candidate->mbmi.mv[which_mv];
+}
+#endif
+
+// Performs mv sign inversion if indicated by the reference frame combination.
+static INLINE int_mv scale_mv(const MB_MODE_INFO *mbmi, int ref,
+ const MV_REFERENCE_FRAME this_ref_frame,
+ const int *ref_sign_bias) {
+ int_mv mv = mbmi->mv[ref];
+ if (ref_sign_bias[mbmi->ref_frame[ref]] != ref_sign_bias[this_ref_frame]) {
+ mv.as_mv.row *= -1;
+ mv.as_mv.col *= -1;
+ }
+ return mv;
+}
+
+#define CLIP_IN_ADD(mv, bw, bh, xd) clamp_mv_ref(mv, bw, bh, xd)
+
+// This macro is used to add a motion vector mv_ref list if it isn't
+// already in the list. If it's the second motion vector it will also
+// skip all additional processing and jump to done!
+#define ADD_MV_REF_LIST(mv, refmv_count, mv_ref_list, bw, bh, xd, Done) \
+ do { \
+ (mv_ref_list)[(refmv_count)] = (mv); \
+ CLIP_IN_ADD(&(mv_ref_list)[(refmv_count)].as_mv, (bw), (bh), (xd)); \
+ if (refmv_count && (mv_ref_list)[1].as_int != (mv_ref_list)[0].as_int) { \
+ (refmv_count) = 2; \
+ goto Done; \
+ } \
+ (refmv_count) = 1; \
+ } while (0)
+
+// If either reference frame is different, not INTRA, and they
+// are different from each other scale and add the mv to our list.
+#define IF_DIFF_REF_FRAME_ADD_MV(mbmi, ref_frame, ref_sign_bias, refmv_count, \
+ mv_ref_list, bw, bh, xd, Done) \
+ do { \
+ if (is_inter_block(mbmi)) { \
+ if ((mbmi)->ref_frame[0] != ref_frame) \
+ ADD_MV_REF_LIST(scale_mv((mbmi), 0, ref_frame, ref_sign_bias), \
+ refmv_count, mv_ref_list, bw, bh, xd, Done); \
+ if (has_second_ref(mbmi) && (mbmi)->ref_frame[1] != ref_frame) \
+ ADD_MV_REF_LIST(scale_mv((mbmi), 1, ref_frame, ref_sign_bias), \
+ refmv_count, mv_ref_list, bw, bh, xd, Done); \
+ } \
+ } while (0)
+
+// 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 AV1_COMMON *cm,
+ const POSITION *mi_pos) {
+#if CONFIG_DEPENDENT_HORZTILES
+ const int dependent_horz_tile_flag = cm->dependent_horz_tiles;
+#else
+ const int dependent_horz_tile_flag = 0;
+ (void)cm;
+#endif
+#if CONFIG_TILE_GROUPS
+ if (dependent_horz_tile_flag && !tile->tg_horz_boundary) {
+#else
+ if (dependent_horz_tile_flag) {
+#endif
+ 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 void lower_mv_precision(MV *mv, int allow_hp) {
+ 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);
+ }
+}
+
+#if CONFIG_REF_MV
+static INLINE uint8_t av1_get_pred_diff_ctx(const int_mv pred_mv,
+ const int_mv this_mv) {
+ if (abs(this_mv.as_mv.row - pred_mv.as_mv.row) <= 4 &&
+ abs(this_mv.as_mv.col - pred_mv.as_mv.col) <= 4)
+ return 2;
+ else
+ return 1;
+}
+
+static INLINE int av1_nmv_ctx(const uint8_t ref_mv_count,
+ const CANDIDATE_MV *ref_mv_stack, int ref,
+ int ref_mv_idx) {
+ if (ref_mv_stack[ref_mv_idx].weight >= REF_CAT_LEVEL && ref_mv_count > 0)
+ return ref_mv_stack[ref_mv_idx].pred_diff[ref];
+
+ return 0;
+}
+
+static INLINE int8_t av1_ref_frame_type(const MV_REFERENCE_FRAME *const rf) {
+ if (rf[1] > INTRA_FRAME) {
+ return TOTAL_REFS_PER_FRAME + 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[COMP_REFS][2] = {
+#if CONFIG_EXT_REFS
+ { LAST_FRAME, BWDREF_FRAME }, { LAST2_FRAME, BWDREF_FRAME },
+ { LAST3_FRAME, BWDREF_FRAME }, { GOLDEN_FRAME, BWDREF_FRAME },
+
+ { LAST_FRAME, ALTREF_FRAME }, { LAST2_FRAME, ALTREF_FRAME },
+ { LAST3_FRAME, ALTREF_FRAME }, { GOLDEN_FRAME, ALTREF_FRAME }
+#else
+ { LAST_FRAME, ALTREF_FRAME }, { GOLDEN_FRAME, ALTREF_FRAME }
+#endif
+};
+// clang-format on
+
+static INLINE void av1_set_ref_frame(MV_REFERENCE_FRAME *rf,
+ int8_t ref_frame_type) {
+ if (ref_frame_type >= TOTAL_REFS_PER_FRAME) {
+ rf[0] = ref_frame_map[ref_frame_type - TOTAL_REFS_PER_FRAME][0];
+ rf[1] = ref_frame_map[ref_frame_type - TOTAL_REFS_PER_FRAME][1];
+ } else {
+ rf[0] = ref_frame_type;
+ rf[1] = NONE_FRAME;
+ assert(ref_frame_type > INTRA_FRAME &&
+ ref_frame_type < TOTAL_REFS_PER_FRAME);
+ }
+}
+
+static INLINE int16_t av1_mode_context_analyzer(
+ const int16_t *const mode_context, const MV_REFERENCE_FRAME *const rf,
+ BLOCK_SIZE bsize, int block) {
+ int16_t mode_ctx = 0;
+ int8_t ref_frame_type = av1_ref_frame_type(rf);
+
+ if (block >= 0) {
+ mode_ctx = mode_context[rf[0]] & 0x00ff;
+#if !CONFIG_CB4X4
+ if (block > 0 && bsize < BLOCK_8X8 && bsize > BLOCK_4X4)
+ mode_ctx |= (1 << SKIP_NEARESTMV_SUB8X8_OFFSET);
+#else
+ (void)block;
+ (void)bsize;
+#endif
+
+ return mode_ctx;
+ }
+
+ return mode_context[ref_frame_type];
+}
+
+static INLINE uint8_t av1_drl_ctx(const CANDIDATE_MV *ref_mv_stack,
+ int ref_idx) {
+ if (ref_mv_stack[ref_idx].weight >= REF_CAT_LEVEL &&
+ ref_mv_stack[ref_idx + 1].weight >= REF_CAT_LEVEL)
+ return 0;
+
+ if (ref_mv_stack[ref_idx].weight >= REF_CAT_LEVEL &&
+ ref_mv_stack[ref_idx + 1].weight < REF_CAT_LEVEL)
+ return 2;
+
+ if (ref_mv_stack[ref_idx].weight < REF_CAT_LEVEL &&
+ ref_mv_stack[ref_idx + 1].weight < REF_CAT_LEVEL)
+ return 3;
+
+ return 0;
+}
+#endif
+
+typedef void (*find_mv_refs_sync)(void *const data, int mi_row);
+void av1_find_mv_refs(const AV1_COMMON *cm, const MACROBLOCKD *xd,
+ MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
+#if CONFIG_REF_MV
+ uint8_t *ref_mv_count, CANDIDATE_MV *ref_mv_stack,
+#if CONFIG_EXT_INTER
+ int16_t *compound_mode_context,
+#endif // CONFIG_EXT_INTER
+#endif
+ int_mv *mv_ref_list, int mi_row, int mi_col,
+ find_mv_refs_sync sync, void *const data,
+ int16_t *mode_context);
+
+// check a list of motion vectors by sad score using a number rows of pixels
+// above and a number cols of pixels in the left to select the one with best
+// score to use as ref motion vector
+void av1_find_best_ref_mvs(int allow_hp, int_mv *mvlist, int_mv *nearest_mv,
+ int_mv *near_mv);
+
+void av1_append_sub8x8_mvs_for_idx(const AV1_COMMON *cm, MACROBLOCKD *xd,
+ int block, int ref, int mi_row, int mi_col,
+#if CONFIG_REF_MV
+ CANDIDATE_MV *ref_mv_stack,
+ uint8_t *ref_mv_count,
+#endif
+#if CONFIG_EXT_INTER
+ int_mv *mv_list,
+#endif // CONFIG_EXT_INTER
+ int_mv *nearest_mv, int_mv *near_mv);
+
+#if CONFIG_EXT_INTER
+// This function keeps a mode count for a given MB/SB
+void av1_update_mv_context(const AV1_COMMON *cm, const MACROBLOCKD *xd,
+ MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
+ int_mv *mv_ref_list, int block, int mi_row,
+ int mi_col, int16_t *mode_context);
+#endif // CONFIG_EXT_INTER
+
+#if CONFIG_WARPED_MOTION
+int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
+ int *pts, int *pts_inref);
+#endif // CONFIG_WARPED_MOTION
+
+#if CONFIG_INTRABC
+static INLINE void av1_find_ref_dv(int_mv *ref_dv, int mi_row, int mi_col) {
+ // TODO(aconverse@google.com): Handle tiles and such
+ (void)mi_col;
+ if (mi_row < MAX_MIB_SIZE) {
+ ref_dv->as_mv.row = 0;
+ ref_dv->as_mv.col = -MI_SIZE * MAX_MIB_SIZE;
+ } else {
+ ref_dv->as_mv.row = -MI_SIZE * MAX_MIB_SIZE;
+ ref_dv->as_mv.col = 0;
+ }
+}
+
+static INLINE int is_dv_valid(const MV dv, const TileInfo *const tile,
+ int mi_row, int mi_col, BLOCK_SIZE bsize) {
+ const int bw = block_size_wide[bsize];
+ const int bh = block_size_high[bsize];
+ const int SCALE_PX_TO_MV = 8;
+ // Disallow subpixel for now
+ // SUBPEL_MASK is not the correct scale
+ if ((dv.row & (SCALE_PX_TO_MV - 1) || dv.col & (SCALE_PX_TO_MV - 1)))
+ return 0;
+ // Is the source top-left inside the current tile?
+ const int src_top_edge = mi_row * MI_SIZE * SCALE_PX_TO_MV + dv.row;
+ const int tile_top_edge = tile->mi_row_start * MI_SIZE * SCALE_PX_TO_MV;
+ if (src_top_edge < tile_top_edge) return 0;
+ const int src_left_edge = mi_col * MI_SIZE * SCALE_PX_TO_MV + dv.col;
+ const int tile_left_edge = tile->mi_col_start * MI_SIZE * SCALE_PX_TO_MV;
+ if (src_left_edge < tile_left_edge) return 0;
+ // Is the bottom right inside the current tile?
+ const int src_bottom_edge = (mi_row * MI_SIZE + bh) * SCALE_PX_TO_MV + dv.row;
+ const int tile_bottom_edge = tile->mi_row_end * MI_SIZE * SCALE_PX_TO_MV;
+ if (src_bottom_edge > tile_bottom_edge) return 0;
+ const int src_right_edge = (mi_col * MI_SIZE + bw) * SCALE_PX_TO_MV + dv.col;
+ const int tile_right_edge = tile->mi_col_end * MI_SIZE * SCALE_PX_TO_MV;
+ if (src_right_edge > tile_right_edge) return 0;
+ // Is the bottom right within an already coded SB?
+ const int active_sb_top_edge =
+ (mi_row & ~MAX_MIB_MASK) * MI_SIZE * SCALE_PX_TO_MV;
+ const int active_sb_bottom_edge =
+ ((mi_row & ~MAX_MIB_MASK) + MAX_MIB_SIZE) * MI_SIZE * SCALE_PX_TO_MV;
+ const int active_sb_left_edge =
+ (mi_col & ~MAX_MIB_MASK) * MI_SIZE * SCALE_PX_TO_MV;
+ if (src_bottom_edge > active_sb_bottom_edge) return 0;
+ if (src_bottom_edge > active_sb_top_edge &&
+ src_right_edge > active_sb_left_edge)
+ return 0;
+ return 1;
+}
+#endif // CONFIG_INTRABC
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AV1_COMMON_MVREF_COMMON_H_
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