#include "vp9/common/vp9_mvref_common.h"
-#define MVREF_NEIGHBOURS 8
-
-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
- 9, // TM_PRED
- 0, // NEARESTMV
- 0, // NEARMV
- 3, // ZEROMV
- 1, // NEWMV
-};
-
-// 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
-};
-
-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}}
-};
-
-static const int idx_n_column_to_subblock[4][2] = {
- {1, 2},
- {1, 3},
- {3, 2},
- {3, 3}
-};
-
-// clamp_mv_ref
-#define MV_BORDER (16 << 3) // Allow 16 pels in 1/8th pel units
-
-static void clamp_mv_ref(MV *mv, const MACROBLOCKD *xd) {
- clamp_mv(mv, xd->mb_to_left_edge - MV_BORDER,
- xd->mb_to_right_edge + MV_BORDER,
- xd->mb_to_top_edge - MV_BORDER,
- xd->mb_to_bottom_edge + 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) {
- 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];
-}
-
-
-// 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;
-}
-
-// 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) \
- do { \
- if (refmv_count) { \
- if ((MV).as_int != mv_ref_list[0].as_int) { \
- mv_ref_list[refmv_count] = (MV); \
- goto Done; \
- } \
- } else { \
- mv_ref_list[refmv_count++] = (MV); \
- } \
- } 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(CANDIDATE) \
- do { \
- if ((CANDIDATE)->ref_frame[0] != ref_frame) \
- ADD_MV_REF_LIST(scale_mv((CANDIDATE), 0, ref_frame, ref_sign_bias)); \
- if ((CANDIDATE)->ref_frame[1] != ref_frame && \
- has_second_ref(CANDIDATE) && \
- (CANDIDATE)->mv[1].as_int != (CANDIDATE)->mv[0].as_int) \
- ADD_MV_REF_LIST(scale_mv((CANDIDATE), 1, ref_frame, ref_sign_bias)); \
- } 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 POSITION *mi_pos) {
- 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);
-}
-
// This function searches the neighbourhood of a given MB/SB
// to try and find candidate reference vectors.
-void vp9_find_mv_refs_idx(const VP9_COMMON *cm, const MACROBLOCKD *xd,
- const TileInfo *const tile,
- MODE_INFO *mi, const MODE_INFO *prev_mi,
- MV_REFERENCE_FRAME ref_frame,
- int_mv *mv_ref_list,
- int block_idx,
- int mi_row, int mi_col) {
+static void find_mv_refs_idx(const VP9_COMMON *cm, const MACROBLOCKD *xd,
+ const TileInfo *const tile,
+ MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
+ int_mv *mv_ref_list,
+ int block, int mi_row, int mi_col) {
const int *ref_sign_bias = cm->ref_frame_sign_bias;
int i, refmv_count = 0;
+ const MODE_INFO *prev_mi = !cm->error_resilient_mode && cm->prev_mi
+ ? cm->prev_mi[mi_row * xd->mi_stride + mi_col].src_mi
+ : NULL;
+ const MB_MODE_INFO *const prev_mbmi = prev_mi ? &prev_mi->src_mi->mbmi : NULL;
const POSITION *const mv_ref_search = mv_ref_blocks[mi->mbmi.sb_type];
- const MB_MODE_INFO *const prev_mbmi = prev_mi ? &prev_mi->mbmi : NULL;
int different_ref_found = 0;
int context_counter = 0;
for (i = 0; i < 2; ++i) {
const POSITION *const mv_ref = &mv_ref_search[i];
if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
- const MODE_INFO *const candidate_mi = xd->mi_8x8[mv_ref->col + mv_ref->row
- * xd->mode_info_stride];
+ const MODE_INFO *const candidate_mi = xd->mi[mv_ref->col + mv_ref->row *
+ xd->mi_stride].src_mi;
const MB_MODE_INFO *const candidate = &candidate_mi->mbmi;
// Keep counts for entropy encoding.
context_counter += mode_2_counter[candidate->mode];
+ different_ref_found = 1;
- // Check if the candidate comes from the same reference frame.
- if (candidate->ref_frame[0] == ref_frame) {
- ADD_MV_REF_LIST(get_sub_block_mv(candidate_mi, 0,
- mv_ref->col, block_idx));
- different_ref_found = candidate->ref_frame[1] != ref_frame;
- } else {
- if (candidate->ref_frame[1] == ref_frame)
- // Add second motion vector if it has the same ref_frame.
- ADD_MV_REF_LIST(get_sub_block_mv(candidate_mi, 1,
- mv_ref->col, block_idx));
- different_ref_found = 1;
- }
+ if (candidate->ref_frame[0] == ref_frame)
+ ADD_MV_REF_LIST(get_sub_block_mv(candidate_mi, 0, mv_ref->col, block));
+ else if (candidate->ref_frame[1] == ref_frame)
+ ADD_MV_REF_LIST(get_sub_block_mv(candidate_mi, 1, mv_ref->col, block));
}
}
for (; i < MVREF_NEIGHBOURS; ++i) {
const POSITION *const mv_ref = &mv_ref_search[i];
if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
- const MB_MODE_INFO *const candidate = &xd->mi_8x8[mv_ref->col +
- mv_ref->row
- * xd->mode_info_stride]->mbmi;
+ const MB_MODE_INFO *const candidate = &xd->mi[mv_ref->col + mv_ref->row *
+ xd->mi_stride].src_mi->mbmi;
+ different_ref_found = 1;
- if (candidate->ref_frame[0] == ref_frame) {
+ if (candidate->ref_frame[0] == ref_frame)
ADD_MV_REF_LIST(candidate->mv[0]);
- different_ref_found = candidate->ref_frame[1] != ref_frame;
- } else {
- if (candidate->ref_frame[1] == ref_frame)
- ADD_MV_REF_LIST(candidate->mv[1]);
- different_ref_found = 1;
- }
+ else if (candidate->ref_frame[1] == ref_frame)
+ ADD_MV_REF_LIST(candidate->mv[1]);
}
}
for (i = 0; i < MVREF_NEIGHBOURS; ++i) {
const POSITION *mv_ref = &mv_ref_search[i];
if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
- const MB_MODE_INFO *const candidate = &xd->mi_8x8[mv_ref->col +
- mv_ref->row
- * xd->mode_info_stride]->mbmi;
+ const MB_MODE_INFO *const candidate = &xd->mi[mv_ref->col + mv_ref->row
+ * xd->mi_stride].src_mi->mbmi;
// If the candidate is INTRA we don't want to consider its mv.
- if (is_inter_block(candidate))
- IF_DIFF_REF_FRAME_ADD_MV(candidate);
+ IF_DIFF_REF_FRAME_ADD_MV(candidate);
}
}
}
// Since we still don't have a candidate we'll try the last frame.
- if (prev_mbmi && is_inter_block(prev_mbmi))
+ if (prev_mbmi)
IF_DIFF_REF_FRAME_ADD_MV(prev_mbmi);
Done:
clamp_mv_ref(&mv_ref_list[i].as_mv, xd);
}
+void vp9_find_mv_refs(const VP9_COMMON *cm, const MACROBLOCKD *xd,
+ const TileInfo *const tile,
+ MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
+ int_mv *mv_ref_list,
+ int mi_row, int mi_col) {
+ find_mv_refs_idx(cm, xd, tile, mi, ref_frame, mv_ref_list, -1,
+ mi_row, mi_col);
+}
+
static void lower_mv_precision(MV *mv, int allow_hp) {
const int use_hp = allow_hp && vp9_use_mv_hp(mv);
if (!use_hp) {
}
}
-
void vp9_find_best_ref_mvs(MACROBLOCKD *xd, int allow_hp,
int_mv *mvlist, int_mv *nearest, int_mv *near) {
int i;
int block, int ref, int mi_row, int mi_col,
int_mv *nearest, int_mv *near) {
int_mv mv_list[MAX_MV_REF_CANDIDATES];
- MODE_INFO *const mi = xd->mi_8x8[0];
+ MODE_INFO *const mi = xd->mi[0].src_mi;
b_mode_info *bmi = mi->bmi;
int n;
assert(MAX_MV_REF_CANDIDATES == 2);
- vp9_find_mv_refs_idx(cm, xd, tile, mi, xd->last_mi, mi->mbmi.ref_frame[ref],
- mv_list, block, mi_row, mi_col);
+ find_mv_refs_idx(cm, xd, tile, mi, mi->mbmi.ref_frame[ref], mv_list, block,
+ mi_row, mi_col);
near->as_int = 0;
switch (block) {
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