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-rw-r--r--media/libvpx/vp9/encoder/vp9_mcomp.c2357
1 files changed, 2357 insertions, 0 deletions
diff --git a/media/libvpx/vp9/encoder/vp9_mcomp.c b/media/libvpx/vp9/encoder/vp9_mcomp.c
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+++ b/media/libvpx/vp9/encoder/vp9_mcomp.c
@@ -0,0 +1,2357 @@
+/*
+ * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <limits.h>
+#include <math.h>
+#include <stdio.h>
+
+#include "./vpx_config.h"
+#include "./vpx_dsp_rtcd.h"
+
+#include "vpx_mem/vpx_mem.h"
+#include "vpx_ports/mem.h"
+
+#include "vp9/common/vp9_common.h"
+#include "vp9/common/vp9_reconinter.h"
+
+#include "vp9/encoder/vp9_encoder.h"
+#include "vp9/encoder/vp9_mcomp.h"
+
+// #define NEW_DIAMOND_SEARCH
+
+static INLINE const uint8_t *get_buf_from_mv(const struct buf_2d *buf,
+ const MV *mv) {
+ return &buf->buf[mv->row * buf->stride + mv->col];
+}
+
+void vp9_set_mv_search_range(MACROBLOCK *x, const MV *mv) {
+ int col_min = (mv->col >> 3) - MAX_FULL_PEL_VAL + (mv->col & 7 ? 1 : 0);
+ int row_min = (mv->row >> 3) - MAX_FULL_PEL_VAL + (mv->row & 7 ? 1 : 0);
+ int col_max = (mv->col >> 3) + MAX_FULL_PEL_VAL;
+ int row_max = (mv->row >> 3) + MAX_FULL_PEL_VAL;
+
+ col_min = MAX(col_min, (MV_LOW >> 3) + 1);
+ row_min = MAX(row_min, (MV_LOW >> 3) + 1);
+ col_max = MIN(col_max, (MV_UPP >> 3) - 1);
+ row_max = MIN(row_max, (MV_UPP >> 3) - 1);
+
+ // Get intersection of UMV window and valid MV window to reduce # of checks
+ // in diamond search.
+ if (x->mv_col_min < col_min)
+ x->mv_col_min = col_min;
+ if (x->mv_col_max > col_max)
+ x->mv_col_max = col_max;
+ if (x->mv_row_min < row_min)
+ x->mv_row_min = row_min;
+ if (x->mv_row_max > row_max)
+ x->mv_row_max = row_max;
+}
+
+int vp9_init_search_range(int size) {
+ int sr = 0;
+ // Minimum search size no matter what the passed in value.
+ size = MAX(16, size);
+
+ while ((size << sr) < MAX_FULL_PEL_VAL)
+ sr++;
+
+ sr = MIN(sr, MAX_MVSEARCH_STEPS - 2);
+ return sr;
+}
+
+static INLINE int mv_cost(const MV *mv,
+ const int *joint_cost, int *const comp_cost[2]) {
+ return joint_cost[vp9_get_mv_joint(mv)] +
+ comp_cost[0][mv->row] + comp_cost[1][mv->col];
+}
+
+int vp9_mv_bit_cost(const MV *mv, const MV *ref,
+ const int *mvjcost, int *mvcost[2], int weight) {
+ const MV diff = { mv->row - ref->row,
+ mv->col - ref->col };
+ return ROUND_POWER_OF_TWO(mv_cost(&diff, mvjcost, mvcost) * weight, 7);
+}
+
+static int mv_err_cost(const MV *mv, const MV *ref,
+ const int *mvjcost, int *mvcost[2],
+ int error_per_bit) {
+ if (mvcost) {
+ const MV diff = { mv->row - ref->row,
+ mv->col - ref->col };
+ return ROUND_POWER_OF_TWO(mv_cost(&diff, mvjcost, mvcost) *
+ error_per_bit, 13);
+ }
+ return 0;
+}
+
+static int mvsad_err_cost(const MACROBLOCK *x, const MV *mv, const MV *ref,
+ int error_per_bit) {
+ const MV diff = { mv->row - ref->row,
+ mv->col - ref->col };
+ return ROUND_POWER_OF_TWO(mv_cost(&diff, x->nmvjointsadcost,
+ x->nmvsadcost) * error_per_bit, 8);
+}
+
+void vp9_init_dsmotion_compensation(search_site_config *cfg, int stride) {
+ int len, ss_count = 1;
+
+ cfg->ss[0].mv.col = cfg->ss[0].mv.row = 0;
+ cfg->ss[0].offset = 0;
+
+ for (len = MAX_FIRST_STEP; len > 0; len /= 2) {
+ // Generate offsets for 4 search sites per step.
+ const MV ss_mvs[] = {{-len, 0}, {len, 0}, {0, -len}, {0, len}};
+ int i;
+ for (i = 0; i < 4; ++i) {
+ search_site *const ss = &cfg->ss[ss_count++];
+ ss->mv = ss_mvs[i];
+ ss->offset = ss->mv.row * stride + ss->mv.col;
+ }
+ }
+
+ cfg->ss_count = ss_count;
+ cfg->searches_per_step = 4;
+}
+
+void vp9_init3smotion_compensation(search_site_config *cfg, int stride) {
+ int len, ss_count = 1;
+
+ cfg->ss[0].mv.col = cfg->ss[0].mv.row = 0;
+ cfg->ss[0].offset = 0;
+
+ for (len = MAX_FIRST_STEP; len > 0; len /= 2) {
+ // Generate offsets for 8 search sites per step.
+ const MV ss_mvs[8] = {
+ {-len, 0 }, {len, 0 }, { 0, -len}, {0, len},
+ {-len, -len}, {-len, len}, {len, -len}, {len, len}
+ };
+ int i;
+ for (i = 0; i < 8; ++i) {
+ search_site *const ss = &cfg->ss[ss_count++];
+ ss->mv = ss_mvs[i];
+ ss->offset = ss->mv.row * stride + ss->mv.col;
+ }
+ }
+
+ cfg->ss_count = ss_count;
+ cfg->searches_per_step = 8;
+}
+
+/*
+ * To avoid the penalty for crossing cache-line read, preload the reference
+ * area in a small buffer, which is aligned to make sure there won't be crossing
+ * cache-line read while reading from this buffer. This reduced the cpu
+ * cycles spent on reading ref data in sub-pixel filter functions.
+ * TODO: Currently, since sub-pixel search range here is -3 ~ 3, copy 22 rows x
+ * 32 cols area that is enough for 16x16 macroblock. Later, for SPLITMV, we
+ * could reduce the area.
+ */
+
+/* estimated cost of a motion vector (r,c) */
+#define MVC(r, c) \
+ (mvcost ? \
+ ((mvjcost[((r) != rr) * 2 + ((c) != rc)] + \
+ mvcost[0][((r) - rr)] + mvcost[1][((c) - rc)]) * \
+ error_per_bit + 4096) >> 13 : 0)
+
+
+// convert motion vector component to offset for sv[a]f calc
+static INLINE int sp(int x) {
+ return x & 7;
+}
+
+static INLINE const uint8_t *pre(const uint8_t *buf, int stride, int r, int c) {
+ return &buf[(r >> 3) * stride + (c >> 3)];
+}
+
+/* checks if (r, c) has better score than previous best */
+#define CHECK_BETTER(v, r, c) \
+ if (c >= minc && c <= maxc && r >= minr && r <= maxr) { \
+ if (second_pred == NULL) \
+ thismse = vfp->svf(pre(y, y_stride, r, c), y_stride, sp(c), sp(r), z, \
+ src_stride, &sse); \
+ else \
+ thismse = vfp->svaf(pre(y, y_stride, r, c), y_stride, sp(c), sp(r), \
+ z, src_stride, &sse, second_pred); \
+ if ((v = MVC(r, c) + thismse) < besterr) { \
+ besterr = v; \
+ br = r; \
+ bc = c; \
+ *distortion = thismse; \
+ *sse1 = sse; \
+ } \
+ } else { \
+ v = INT_MAX; \
+ }
+
+#define FIRST_LEVEL_CHECKS \
+ { \
+ unsigned int left, right, up, down, diag; \
+ CHECK_BETTER(left, tr, tc - hstep); \
+ CHECK_BETTER(right, tr, tc + hstep); \
+ CHECK_BETTER(up, tr - hstep, tc); \
+ CHECK_BETTER(down, tr + hstep, tc); \
+ whichdir = (left < right ? 0 : 1) + \
+ (up < down ? 0 : 2); \
+ switch (whichdir) { \
+ case 0: \
+ CHECK_BETTER(diag, tr - hstep, tc - hstep); \
+ break; \
+ case 1: \
+ CHECK_BETTER(diag, tr - hstep, tc + hstep); \
+ break; \
+ case 2: \
+ CHECK_BETTER(diag, tr + hstep, tc - hstep); \
+ break; \
+ case 3: \
+ CHECK_BETTER(diag, tr + hstep, tc + hstep); \
+ break; \
+ } \
+ }
+
+#define SECOND_LEVEL_CHECKS \
+ { \
+ int kr, kc; \
+ unsigned int second; \
+ if (tr != br && tc != bc) { \
+ kr = br - tr; \
+ kc = bc - tc; \
+ CHECK_BETTER(second, tr + kr, tc + 2 * kc); \
+ CHECK_BETTER(second, tr + 2 * kr, tc + kc); \
+ } else if (tr == br && tc != bc) { \
+ kc = bc - tc; \
+ CHECK_BETTER(second, tr + hstep, tc + 2 * kc); \
+ CHECK_BETTER(second, tr - hstep, tc + 2 * kc); \
+ switch (whichdir) { \
+ case 0: \
+ case 1: \
+ CHECK_BETTER(second, tr + hstep, tc + kc); \
+ break; \
+ case 2: \
+ case 3: \
+ CHECK_BETTER(second, tr - hstep, tc + kc); \
+ break; \
+ } \
+ } else if (tr != br && tc == bc) { \
+ kr = br - tr; \
+ CHECK_BETTER(second, tr + 2 * kr, tc + hstep); \
+ CHECK_BETTER(second, tr + 2 * kr, tc - hstep); \
+ switch (whichdir) { \
+ case 0: \
+ case 2: \
+ CHECK_BETTER(second, tr + kr, tc + hstep); \
+ break; \
+ case 1: \
+ case 3: \
+ CHECK_BETTER(second, tr + kr, tc - hstep); \
+ break; \
+ } \
+ } \
+ }
+
+#define SETUP_SUBPEL_SEARCH \
+ const uint8_t *const z = x->plane[0].src.buf; \
+ const int src_stride = x->plane[0].src.stride; \
+ const MACROBLOCKD *xd = &x->e_mbd; \
+ unsigned int besterr = INT_MAX; \
+ unsigned int sse; \
+ unsigned int whichdir; \
+ int thismse; \
+ const unsigned int halfiters = iters_per_step; \
+ const unsigned int quarteriters = iters_per_step; \
+ const unsigned int eighthiters = iters_per_step; \
+ const int y_stride = xd->plane[0].pre[0].stride; \
+ const int offset = bestmv->row * y_stride + bestmv->col; \
+ const uint8_t *const y = xd->plane[0].pre[0].buf; \
+ \
+ int rr = ref_mv->row; \
+ int rc = ref_mv->col; \
+ int br = bestmv->row * 8; \
+ int bc = bestmv->col * 8; \
+ int hstep = 4; \
+ const int minc = MAX(x->mv_col_min * 8, ref_mv->col - MV_MAX); \
+ const int maxc = MIN(x->mv_col_max * 8, ref_mv->col + MV_MAX); \
+ const int minr = MAX(x->mv_row_min * 8, ref_mv->row - MV_MAX); \
+ const int maxr = MIN(x->mv_row_max * 8, ref_mv->row + MV_MAX); \
+ int tr = br; \
+ int tc = bc; \
+ \
+ bestmv->row *= 8; \
+ bestmv->col *= 8;
+
+static INLINE unsigned int setup_center_error(const MACROBLOCKD *xd,
+ const MV *bestmv,
+ const MV *ref_mv,
+ int error_per_bit,
+ const vp9_variance_fn_ptr_t *vfp,
+ const uint8_t *const src,
+ const int src_stride,
+ const uint8_t *const y,
+ int y_stride,
+ const uint8_t *second_pred,
+ int w, int h, int offset,
+ int *mvjcost, int *mvcost[2],
+ unsigned int *sse1,
+ int *distortion) {
+ unsigned int besterr;
+#if CONFIG_VP9_HIGHBITDEPTH
+ if (second_pred != NULL) {
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ DECLARE_ALIGNED(16, uint16_t, comp_pred16[64 * 64]);
+ vpx_highbd_comp_avg_pred(comp_pred16, second_pred, w, h, y + offset,
+ y_stride);
+ besterr = vfp->vf(CONVERT_TO_BYTEPTR(comp_pred16), w, src, src_stride,
+ sse1);
+ } else {
+ DECLARE_ALIGNED(16, uint8_t, comp_pred[64 * 64]);
+ vpx_comp_avg_pred(comp_pred, second_pred, w, h, y + offset, y_stride);
+ besterr = vfp->vf(comp_pred, w, src, src_stride, sse1);
+ }
+ } else {
+ besterr = vfp->vf(y + offset, y_stride, src, src_stride, sse1);
+ }
+ *distortion = besterr;
+ besterr += mv_err_cost(bestmv, ref_mv, mvjcost, mvcost, error_per_bit);
+#else
+ (void) xd;
+ if (second_pred != NULL) {
+ DECLARE_ALIGNED(16, uint8_t, comp_pred[64 * 64]);
+ vpx_comp_avg_pred(comp_pred, second_pred, w, h, y + offset, y_stride);
+ besterr = vfp->vf(comp_pred, w, src, src_stride, sse1);
+ } else {
+ besterr = vfp->vf(y + offset, y_stride, src, src_stride, sse1);
+ }
+ *distortion = besterr;
+ besterr += mv_err_cost(bestmv, ref_mv, mvjcost, mvcost, error_per_bit);
+#endif // CONFIG_VP9_HIGHBITDEPTH
+ return besterr;
+}
+
+static INLINE int divide_and_round(const int n, const int d) {
+ return ((n < 0) ^ (d < 0)) ? ((n - d / 2) / d) : ((n + d / 2) / d);
+}
+
+static INLINE int is_cost_list_wellbehaved(int *cost_list) {
+ return cost_list[0] < cost_list[1] &&
+ cost_list[0] < cost_list[2] &&
+ cost_list[0] < cost_list[3] &&
+ cost_list[0] < cost_list[4];
+}
+
+// Returns surface minima estimate at given precision in 1/2^n bits.
+// Assume a model for the cost surface: S = A(x - x0)^2 + B(y - y0)^2 + C
+// For a given set of costs S0, S1, S2, S3, S4 at points
+// (y, x) = (0, 0), (0, -1), (1, 0), (0, 1) and (-1, 0) respectively,
+// the solution for the location of the minima (x0, y0) is given by:
+// x0 = 1/2 (S1 - S3)/(S1 + S3 - 2*S0),
+// y0 = 1/2 (S4 - S2)/(S4 + S2 - 2*S0).
+// The code below is an integerized version of that.
+static void get_cost_surf_min(int *cost_list, int *ir, int *ic,
+ int bits) {
+ *ic = divide_and_round((cost_list[1] - cost_list[3]) * (1 << (bits - 1)),
+ (cost_list[1] - 2 * cost_list[0] + cost_list[3]));
+ *ir = divide_and_round((cost_list[4] - cost_list[2]) * (1 << (bits - 1)),
+ (cost_list[4] - 2 * cost_list[0] + cost_list[2]));
+}
+
+int vp9_find_best_sub_pixel_tree_pruned_evenmore(
+ const MACROBLOCK *x,
+ MV *bestmv, const MV *ref_mv,
+ int allow_hp,
+ int error_per_bit,
+ const vp9_variance_fn_ptr_t *vfp,
+ int forced_stop,
+ int iters_per_step,
+ int *cost_list,
+ int *mvjcost, int *mvcost[2],
+ int *distortion,
+ unsigned int *sse1,
+ const uint8_t *second_pred,
+ int w, int h) {
+ SETUP_SUBPEL_SEARCH;
+ besterr = setup_center_error(xd, bestmv, ref_mv, error_per_bit, vfp,
+ z, src_stride, y, y_stride, second_pred,
+ w, h, offset, mvjcost, mvcost,
+ sse1, distortion);
+ (void) halfiters;
+ (void) quarteriters;
+ (void) eighthiters;
+ (void) whichdir;
+ (void) allow_hp;
+ (void) forced_stop;
+ (void) hstep;
+
+ if (cost_list &&
+ cost_list[0] != INT_MAX && cost_list[1] != INT_MAX &&
+ cost_list[2] != INT_MAX && cost_list[3] != INT_MAX &&
+ cost_list[4] != INT_MAX &&
+ is_cost_list_wellbehaved(cost_list)) {
+ int ir, ic;
+ unsigned int minpt;
+ get_cost_surf_min(cost_list, &ir, &ic, 2);
+ if (ir != 0 || ic != 0) {
+ CHECK_BETTER(minpt, tr + 2 * ir, tc + 2 * ic);
+ }
+ } else {
+ FIRST_LEVEL_CHECKS;
+ if (halfiters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+
+ tr = br;
+ tc = bc;
+
+ // Each subsequent iteration checks at least one point in common with
+ // the last iteration could be 2 ( if diag selected) 1/4 pel
+ // Note forced_stop: 0 - full, 1 - qtr only, 2 - half only
+ if (forced_stop != 2) {
+ hstep >>= 1;
+ FIRST_LEVEL_CHECKS;
+ if (quarteriters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+ }
+ }
+
+ tr = br;
+ tc = bc;
+
+ if (allow_hp && vp9_use_mv_hp(ref_mv) && forced_stop == 0) {
+ hstep >>= 1;
+ FIRST_LEVEL_CHECKS;
+ if (eighthiters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+ }
+
+ bestmv->row = br;
+ bestmv->col = bc;
+
+ if ((abs(bestmv->col - ref_mv->col) > (MAX_FULL_PEL_VAL << 3)) ||
+ (abs(bestmv->row - ref_mv->row) > (MAX_FULL_PEL_VAL << 3)))
+ return INT_MAX;
+
+ return besterr;
+}
+
+int vp9_find_best_sub_pixel_tree_pruned_more(const MACROBLOCK *x,
+ MV *bestmv, const MV *ref_mv,
+ int allow_hp,
+ int error_per_bit,
+ const vp9_variance_fn_ptr_t *vfp,
+ int forced_stop,
+ int iters_per_step,
+ int *cost_list,
+ int *mvjcost, int *mvcost[2],
+ int *distortion,
+ unsigned int *sse1,
+ const uint8_t *second_pred,
+ int w, int h) {
+ SETUP_SUBPEL_SEARCH;
+ besterr = setup_center_error(xd, bestmv, ref_mv, error_per_bit, vfp,
+ z, src_stride, y, y_stride, second_pred,
+ w, h, offset, mvjcost, mvcost,
+ sse1, distortion);
+ if (cost_list &&
+ cost_list[0] != INT_MAX && cost_list[1] != INT_MAX &&
+ cost_list[2] != INT_MAX && cost_list[3] != INT_MAX &&
+ cost_list[4] != INT_MAX &&
+ is_cost_list_wellbehaved(cost_list)) {
+ unsigned int minpt;
+ int ir, ic;
+ get_cost_surf_min(cost_list, &ir, &ic, 1);
+ if (ir != 0 || ic != 0) {
+ CHECK_BETTER(minpt, tr + ir * hstep, tc + ic * hstep);
+ }
+ } else {
+ FIRST_LEVEL_CHECKS;
+ if (halfiters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+ }
+
+ // Each subsequent iteration checks at least one point in common with
+ // the last iteration could be 2 ( if diag selected) 1/4 pel
+
+ // Note forced_stop: 0 - full, 1 - qtr only, 2 - half only
+ if (forced_stop != 2) {
+ tr = br;
+ tc = bc;
+ hstep >>= 1;
+ FIRST_LEVEL_CHECKS;
+ if (quarteriters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+ }
+
+ if (allow_hp && vp9_use_mv_hp(ref_mv) && forced_stop == 0) {
+ tr = br;
+ tc = bc;
+ hstep >>= 1;
+ FIRST_LEVEL_CHECKS;
+ if (eighthiters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+ }
+ // These lines insure static analysis doesn't warn that
+ // tr and tc aren't used after the above point.
+ (void) tr;
+ (void) tc;
+
+ bestmv->row = br;
+ bestmv->col = bc;
+
+ if ((abs(bestmv->col - ref_mv->col) > (MAX_FULL_PEL_VAL << 3)) ||
+ (abs(bestmv->row - ref_mv->row) > (MAX_FULL_PEL_VAL << 3)))
+ return INT_MAX;
+
+ return besterr;
+}
+
+int vp9_find_best_sub_pixel_tree_pruned(const MACROBLOCK *x,
+ MV *bestmv, const MV *ref_mv,
+ int allow_hp,
+ int error_per_bit,
+ const vp9_variance_fn_ptr_t *vfp,
+ int forced_stop,
+ int iters_per_step,
+ int *cost_list,
+ int *mvjcost, int *mvcost[2],
+ int *distortion,
+ unsigned int *sse1,
+ const uint8_t *second_pred,
+ int w, int h) {
+ SETUP_SUBPEL_SEARCH;
+ besterr = setup_center_error(xd, bestmv, ref_mv, error_per_bit, vfp,
+ z, src_stride, y, y_stride, second_pred,
+ w, h, offset, mvjcost, mvcost,
+ sse1, distortion);
+ if (cost_list &&
+ cost_list[0] != INT_MAX && cost_list[1] != INT_MAX &&
+ cost_list[2] != INT_MAX && cost_list[3] != INT_MAX &&
+ cost_list[4] != INT_MAX) {
+ unsigned int left, right, up, down, diag;
+ whichdir = (cost_list[1] < cost_list[3] ? 0 : 1) +
+ (cost_list[2] < cost_list[4] ? 0 : 2);
+ switch (whichdir) {
+ case 0:
+ CHECK_BETTER(left, tr, tc - hstep);
+ CHECK_BETTER(down, tr + hstep, tc);
+ CHECK_BETTER(diag, tr + hstep, tc - hstep);
+ break;
+ case 1:
+ CHECK_BETTER(right, tr, tc + hstep);
+ CHECK_BETTER(down, tr + hstep, tc);
+ CHECK_BETTER(diag, tr + hstep, tc + hstep);
+ break;
+ case 2:
+ CHECK_BETTER(left, tr, tc - hstep);
+ CHECK_BETTER(up, tr - hstep, tc);
+ CHECK_BETTER(diag, tr - hstep, tc - hstep);
+ break;
+ case 3:
+ CHECK_BETTER(right, tr, tc + hstep);
+ CHECK_BETTER(up, tr - hstep, tc);
+ CHECK_BETTER(diag, tr - hstep, tc + hstep);
+ break;
+ }
+ } else {
+ FIRST_LEVEL_CHECKS;
+ if (halfiters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+ }
+
+ tr = br;
+ tc = bc;
+
+ // Each subsequent iteration checks at least one point in common with
+ // the last iteration could be 2 ( if diag selected) 1/4 pel
+
+ // Note forced_stop: 0 - full, 1 - qtr only, 2 - half only
+ if (forced_stop != 2) {
+ hstep >>= 1;
+ FIRST_LEVEL_CHECKS;
+ if (quarteriters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+ tr = br;
+ tc = bc;
+ }
+
+ if (allow_hp && vp9_use_mv_hp(ref_mv) && forced_stop == 0) {
+ hstep >>= 1;
+ FIRST_LEVEL_CHECKS;
+ if (eighthiters > 1) {
+ SECOND_LEVEL_CHECKS;
+ }
+ tr = br;
+ tc = bc;
+ }
+ // These lines insure static analysis doesn't warn that
+ // tr and tc aren't used after the above point.
+ (void) tr;
+ (void) tc;
+
+ bestmv->row = br;
+ bestmv->col = bc;
+
+ if ((abs(bestmv->col - ref_mv->col) > (MAX_FULL_PEL_VAL << 3)) ||
+ (abs(bestmv->row - ref_mv->row) > (MAX_FULL_PEL_VAL << 3)))
+ return INT_MAX;
+
+ return besterr;
+}
+
+const MV search_step_table[12] = {
+ // left, right, up, down
+ {0, -4}, {0, 4}, {-4, 0}, {4, 0},
+ {0, -2}, {0, 2}, {-2, 0}, {2, 0},
+ {0, -1}, {0, 1}, {-1, 0}, {1, 0}
+};
+
+int vp9_find_best_sub_pixel_tree(const MACROBLOCK *x,
+ MV *bestmv, const MV *ref_mv,
+ int allow_hp,
+ int error_per_bit,
+ const vp9_variance_fn_ptr_t *vfp,
+ int forced_stop,
+ int iters_per_step,
+ int *cost_list,
+ int *mvjcost, int *mvcost[2],
+ int *distortion,
+ unsigned int *sse1,
+ const uint8_t *second_pred,
+ int w, int h) {
+ const uint8_t *const z = x->plane[0].src.buf;
+ const uint8_t *const src_address = z;
+ const int src_stride = x->plane[0].src.stride;
+ const MACROBLOCKD *xd = &x->e_mbd;
+ unsigned int besterr = INT_MAX;
+ unsigned int sse;
+ unsigned int whichdir = 0;
+ int thismse;
+ const int y_stride = xd->plane[0].pre[0].stride;
+ const int offset = bestmv->row * y_stride + bestmv->col;
+ const uint8_t *const y = xd->plane[0].pre[0].buf;
+
+ int rr = ref_mv->row;
+ int rc = ref_mv->col;
+ int br = bestmv->row * 8;
+ int bc = bestmv->col * 8;
+ int hstep = 4;
+ int iter, round = 3 - forced_stop;
+ const int minc = MAX(x->mv_col_min * 8, ref_mv->col - MV_MAX);
+ const int maxc = MIN(x->mv_col_max * 8, ref_mv->col + MV_MAX);
+ const int minr = MAX(x->mv_row_min * 8, ref_mv->row - MV_MAX);
+ const int maxr = MIN(x->mv_row_max * 8, ref_mv->row + MV_MAX);
+ int tr = br;
+ int tc = bc;
+ const MV *search_step = search_step_table;
+ int idx, best_idx = -1;
+ unsigned int cost_array[5];
+
+ if (!(allow_hp && vp9_use_mv_hp(ref_mv)))
+ if (round == 3)
+ round = 2;
+
+ bestmv->row *= 8;
+ bestmv->col *= 8;
+
+ besterr = setup_center_error(xd, bestmv, ref_mv, error_per_bit, vfp,
+ z, src_stride, y, y_stride, second_pred,
+ w, h, offset, mvjcost, mvcost,
+ sse1, distortion);
+
+ (void) cost_list; // to silence compiler warning
+
+ for (iter = 0; iter < round; ++iter) {
+ // Check vertical and horizontal sub-pixel positions.
+ for (idx = 0; idx < 4; ++idx) {
+ tr = br + search_step[idx].row;
+ tc = bc + search_step[idx].col;
+ if (tc >= minc && tc <= maxc && tr >= minr && tr <= maxr) {
+ const uint8_t *const pre_address = y + (tr >> 3) * y_stride + (tc >> 3);
+ MV this_mv;
+ this_mv.row = tr;
+ this_mv.col = tc;
+ if (second_pred == NULL)
+ thismse = vfp->svf(pre_address, y_stride, sp(tc), sp(tr),
+ src_address, src_stride, &sse);
+ else
+ thismse = vfp->svaf(pre_address, y_stride, sp(tc), sp(tr),
+ src_address, src_stride, &sse, second_pred);
+ cost_array[idx] = thismse +
+ mv_err_cost(&this_mv, ref_mv, mvjcost, mvcost, error_per_bit);
+
+ if (cost_array[idx] < besterr) {
+ best_idx = idx;
+ besterr = cost_array[idx];
+ *distortion = thismse;
+ *sse1 = sse;
+ }
+ } else {
+ cost_array[idx] = INT_MAX;
+ }
+ }
+
+ // Check diagonal sub-pixel position
+ tc = bc + (cost_array[0] < cost_array[1] ? -hstep : hstep);
+ tr = br + (cost_array[2] < cost_array[3] ? -hstep : hstep);
+ if (tc >= minc && tc <= maxc && tr >= minr && tr <= maxr) {
+ const uint8_t *const pre_address = y + (tr >> 3) * y_stride + (tc >> 3);
+ MV this_mv = {tr, tc};
+ if (second_pred == NULL)
+ thismse = vfp->svf(pre_address, y_stride, sp(tc), sp(tr),
+ src_address, src_stride, &sse);
+ else
+ thismse = vfp->svaf(pre_address, y_stride, sp(tc), sp(tr),
+ src_address, src_stride, &sse, second_pred);
+ cost_array[4] = thismse +
+ mv_err_cost(&this_mv, ref_mv, mvjcost, mvcost, error_per_bit);
+
+ if (cost_array[4] < besterr) {
+ best_idx = 4;
+ besterr = cost_array[4];
+ *distortion = thismse;
+ *sse1 = sse;
+ }
+ } else {
+ cost_array[idx] = INT_MAX;
+ }
+
+ if (best_idx < 4 && best_idx >= 0) {
+ br += search_step[best_idx].row;
+ bc += search_step[best_idx].col;
+ } else if (best_idx == 4) {
+ br = tr;
+ bc = tc;
+ }
+
+ if (iters_per_step > 1)
+ SECOND_LEVEL_CHECKS;
+
+ tr = br;
+ tc = bc;
+
+ search_step += 4;
+ hstep >>= 1;
+ best_idx = -1;
+ }
+
+ // Each subsequent iteration checks at least one point in common with
+ // the last iteration could be 2 ( if diag selected) 1/4 pel
+
+ // These lines insure static analysis doesn't warn that
+ // tr and tc aren't used after the above point.
+ (void) tr;
+ (void) tc;
+
+ bestmv->row = br;
+ bestmv->col = bc;
+
+ if ((abs(bestmv->col - ref_mv->col) > (MAX_FULL_PEL_VAL << 3)) ||
+ (abs(bestmv->row - ref_mv->row) > (MAX_FULL_PEL_VAL << 3)))
+ return INT_MAX;
+
+ return besterr;
+}
+
+#undef MVC
+#undef PRE
+#undef CHECK_BETTER
+
+static INLINE int check_bounds(const MACROBLOCK *x, int row, int col,
+ int range) {
+ return ((row - range) >= x->mv_row_min) &
+ ((row + range) <= x->mv_row_max) &
+ ((col - range) >= x->mv_col_min) &
+ ((col + range) <= x->mv_col_max);
+}
+
+static INLINE int is_mv_in(const MACROBLOCK *x, const MV *mv) {
+ return (mv->col >= x->mv_col_min) && (mv->col <= x->mv_col_max) &&
+ (mv->row >= x->mv_row_min) && (mv->row <= x->mv_row_max);
+}
+
+#define CHECK_BETTER \
+ {\
+ if (thissad < bestsad) {\
+ if (use_mvcost) \
+ thissad += mvsad_err_cost(x, &this_mv, &fcenter_mv, sad_per_bit);\
+ if (thissad < bestsad) {\
+ bestsad = thissad;\
+ best_site = i;\
+ }\
+ }\
+ }
+
+#define MAX_PATTERN_SCALES 11
+#define MAX_PATTERN_CANDIDATES 8 // max number of canddiates per scale
+#define PATTERN_CANDIDATES_REF 3 // number of refinement candidates
+
+// Calculate and return a sad+mvcost list around an integer best pel.
+static INLINE void calc_int_cost_list(const MACROBLOCK *x,
+ const MV *ref_mv,
+ int sadpb,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *best_mv,
+ int *cost_list) {
+ static const MV neighbors[4] = {{0, -1}, {1, 0}, {0, 1}, {-1, 0}};
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &x->e_mbd.plane[0].pre[0];
+ const MV fcenter_mv = {ref_mv->row >> 3, ref_mv->col >> 3};
+ int br = best_mv->row;
+ int bc = best_mv->col;
+ MV this_mv;
+ int i;
+ unsigned int sse;
+
+ this_mv.row = br;
+ this_mv.col = bc;
+ cost_list[0] = fn_ptr->vf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride, &sse) +
+ mvsad_err_cost(x, &this_mv, &fcenter_mv, sadpb);
+ if (check_bounds(x, br, bc, 1)) {
+ for (i = 0; i < 4; i++) {
+ const MV this_mv = {br + neighbors[i].row,
+ bc + neighbors[i].col};
+ cost_list[i + 1] = fn_ptr->vf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride, &sse) +
+ // mvsad_err_cost(x, &this_mv, &fcenter_mv, sadpb);
+ mv_err_cost(&this_mv, &fcenter_mv, x->nmvjointcost, x->mvcost,
+ x->errorperbit);
+ }
+ } else {
+ for (i = 0; i < 4; i++) {
+ const MV this_mv = {br + neighbors[i].row,
+ bc + neighbors[i].col};
+ if (!is_mv_in(x, &this_mv))
+ cost_list[i + 1] = INT_MAX;
+ else
+ cost_list[i + 1] = fn_ptr->vf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride, &sse) +
+ // mvsad_err_cost(x, &this_mv, &fcenter_mv, sadpb);
+ mv_err_cost(&this_mv, &fcenter_mv, x->nmvjointcost, x->mvcost,
+ x->errorperbit);
+ }
+ }
+}
+
+// Generic pattern search function that searches over multiple scales.
+// Each scale can have a different number of candidates and shape of
+// candidates as indicated in the num_candidates and candidates arrays
+// passed into this function
+//
+static int vp9_pattern_search(const MACROBLOCK *x,
+ MV *ref_mv,
+ int search_param,
+ int sad_per_bit,
+ int do_init_search,
+ int *cost_list,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost,
+ const MV *center_mv,
+ MV *best_mv,
+ const int num_candidates[MAX_PATTERN_SCALES],
+ const MV candidates[MAX_PATTERN_SCALES]
+ [MAX_PATTERN_CANDIDATES]) {
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ static const int search_param_to_steps[MAX_MVSEARCH_STEPS] = {
+ 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0,
+ };
+ int i, s, t;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ int br, bc;
+ int bestsad = INT_MAX;
+ int thissad;
+ int k = -1;
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ int best_init_s = search_param_to_steps[search_param];
+ // adjust ref_mv to make sure it is within MV range
+ clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
+ br = ref_mv->row;
+ bc = ref_mv->col;
+
+ // Work out the start point for the search
+ bestsad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, ref_mv), in_what->stride) +
+ mvsad_err_cost(x, ref_mv, &fcenter_mv, sad_per_bit);
+
+ // Search all possible scales upto the search param around the center point
+ // pick the scale of the point that is best as the starting scale of
+ // further steps around it.
+ if (do_init_search) {
+ s = best_init_s;
+ best_init_s = -1;
+ for (t = 0; t <= s; ++t) {
+ int best_site = -1;
+ if (check_bounds(x, br, bc, 1 << t)) {
+ for (i = 0; i < num_candidates[t]; i++) {
+ const MV this_mv = {br + candidates[t][i].row,
+ bc + candidates[t][i].col};
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ } else {
+ for (i = 0; i < num_candidates[t]; i++) {
+ const MV this_mv = {br + candidates[t][i].row,
+ bc + candidates[t][i].col};
+ if (!is_mv_in(x, &this_mv))
+ continue;
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ }
+ if (best_site == -1) {
+ continue;
+ } else {
+ best_init_s = t;
+ k = best_site;
+ }
+ }
+ if (best_init_s != -1) {
+ br += candidates[best_init_s][k].row;
+ bc += candidates[best_init_s][k].col;
+ }
+ }
+
+ // If the center point is still the best, just skip this and move to
+ // the refinement step.
+ if (best_init_s != -1) {
+ int best_site = -1;
+ s = best_init_s;
+
+ do {
+ // No need to search all 6 points the 1st time if initial search was used
+ if (!do_init_search || s != best_init_s) {
+ if (check_bounds(x, br, bc, 1 << s)) {
+ for (i = 0; i < num_candidates[s]; i++) {
+ const MV this_mv = {br + candidates[s][i].row,
+ bc + candidates[s][i].col};
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ } else {
+ for (i = 0; i < num_candidates[s]; i++) {
+ const MV this_mv = {br + candidates[s][i].row,
+ bc + candidates[s][i].col};
+ if (!is_mv_in(x, &this_mv))
+ continue;
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ }
+
+ if (best_site == -1) {
+ continue;
+ } else {
+ br += candidates[s][best_site].row;
+ bc += candidates[s][best_site].col;
+ k = best_site;
+ }
+ }
+
+ do {
+ int next_chkpts_indices[PATTERN_CANDIDATES_REF];
+ best_site = -1;
+ next_chkpts_indices[0] = (k == 0) ? num_candidates[s] - 1 : k - 1;
+ next_chkpts_indices[1] = k;
+ next_chkpts_indices[2] = (k == num_candidates[s] - 1) ? 0 : k + 1;
+
+ if (check_bounds(x, br, bc, 1 << s)) {
+ for (i = 0; i < PATTERN_CANDIDATES_REF; i++) {
+ const MV this_mv = {br + candidates[s][next_chkpts_indices[i]].row,
+ bc + candidates[s][next_chkpts_indices[i]].col};
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ } else {
+ for (i = 0; i < PATTERN_CANDIDATES_REF; i++) {
+ const MV this_mv = {br + candidates[s][next_chkpts_indices[i]].row,
+ bc + candidates[s][next_chkpts_indices[i]].col};
+ if (!is_mv_in(x, &this_mv))
+ continue;
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ }
+
+ if (best_site != -1) {
+ k = next_chkpts_indices[best_site];
+ br += candidates[s][k].row;
+ bc += candidates[s][k].col;
+ }
+ } while (best_site != -1);
+ } while (s--);
+ }
+
+ // Returns the one-away integer pel sad values around the best as follows:
+ // cost_list[0]: cost at the best integer pel
+ // cost_list[1]: cost at delta {0, -1} (left) from the best integer pel
+ // cost_list[2]: cost at delta { 1, 0} (bottom) from the best integer pel
+ // cost_list[3]: cost at delta { 0, 1} (right) from the best integer pel
+ // cost_list[4]: cost at delta {-1, 0} (top) from the best integer pel
+ if (cost_list) {
+ const MV best_mv = { br, bc };
+ calc_int_cost_list(x, &fcenter_mv, sad_per_bit, vfp, &best_mv, cost_list);
+ }
+ best_mv->row = br;
+ best_mv->col = bc;
+ return bestsad;
+}
+
+// A specialized function where the smallest scale search candidates
+// are 4 1-away neighbors, and cost_list is non-null
+// TODO(debargha): Merge this function with the one above. Also remove
+// use_mvcost option since it is always 1, to save unnecessary branches.
+static int vp9_pattern_search_sad(const MACROBLOCK *x,
+ MV *ref_mv,
+ int search_param,
+ int sad_per_bit,
+ int do_init_search,
+ int *cost_list,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost,
+ const MV *center_mv,
+ MV *best_mv,
+ const int num_candidates[MAX_PATTERN_SCALES],
+ const MV candidates[MAX_PATTERN_SCALES]
+ [MAX_PATTERN_CANDIDATES]) {
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ static const int search_param_to_steps[MAX_MVSEARCH_STEPS] = {
+ 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0,
+ };
+ int i, s, t;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ int br, bc;
+ int bestsad = INT_MAX;
+ int thissad;
+ int k = -1;
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ int best_init_s = search_param_to_steps[search_param];
+ // adjust ref_mv to make sure it is within MV range
+ clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
+ br = ref_mv->row;
+ bc = ref_mv->col;
+ if (cost_list != NULL) {
+ cost_list[0] = cost_list[1] = cost_list[2] = cost_list[3] = cost_list[4] =
+ INT_MAX;
+ }
+
+ // Work out the start point for the search
+ bestsad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, ref_mv), in_what->stride) +
+ mvsad_err_cost(x, ref_mv, &fcenter_mv, sad_per_bit);
+
+ // Search all possible scales upto the search param around the center point
+ // pick the scale of the point that is best as the starting scale of
+ // further steps around it.
+ if (do_init_search) {
+ s = best_init_s;
+ best_init_s = -1;
+ for (t = 0; t <= s; ++t) {
+ int best_site = -1;
+ if (check_bounds(x, br, bc, 1 << t)) {
+ for (i = 0; i < num_candidates[t]; i++) {
+ const MV this_mv = {br + candidates[t][i].row,
+ bc + candidates[t][i].col};
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ } else {
+ for (i = 0; i < num_candidates[t]; i++) {
+ const MV this_mv = {br + candidates[t][i].row,
+ bc + candidates[t][i].col};
+ if (!is_mv_in(x, &this_mv))
+ continue;
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ }
+ if (best_site == -1) {
+ continue;
+ } else {
+ best_init_s = t;
+ k = best_site;
+ }
+ }
+ if (best_init_s != -1) {
+ br += candidates[best_init_s][k].row;
+ bc += candidates[best_init_s][k].col;
+ }
+ }
+
+ // If the center point is still the best, just skip this and move to
+ // the refinement step.
+ if (best_init_s != -1) {
+ int do_sad = (num_candidates[0] == 4 && cost_list != NULL);
+ int best_site = -1;
+ s = best_init_s;
+
+ for (; s >= do_sad; s--) {
+ if (!do_init_search || s != best_init_s) {
+ if (check_bounds(x, br, bc, 1 << s)) {
+ for (i = 0; i < num_candidates[s]; i++) {
+ const MV this_mv = {br + candidates[s][i].row,
+ bc + candidates[s][i].col};
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ } else {
+ for (i = 0; i < num_candidates[s]; i++) {
+ const MV this_mv = {br + candidates[s][i].row,
+ bc + candidates[s][i].col};
+ if (!is_mv_in(x, &this_mv))
+ continue;
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ }
+
+ if (best_site == -1) {
+ continue;
+ } else {
+ br += candidates[s][best_site].row;
+ bc += candidates[s][best_site].col;
+ k = best_site;
+ }
+ }
+
+ do {
+ int next_chkpts_indices[PATTERN_CANDIDATES_REF];
+ best_site = -1;
+ next_chkpts_indices[0] = (k == 0) ? num_candidates[s] - 1 : k - 1;
+ next_chkpts_indices[1] = k;
+ next_chkpts_indices[2] = (k == num_candidates[s] - 1) ? 0 : k + 1;
+
+ if (check_bounds(x, br, bc, 1 << s)) {
+ for (i = 0; i < PATTERN_CANDIDATES_REF; i++) {
+ const MV this_mv = {br + candidates[s][next_chkpts_indices[i]].row,
+ bc + candidates[s][next_chkpts_indices[i]].col};
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ } else {
+ for (i = 0; i < PATTERN_CANDIDATES_REF; i++) {
+ const MV this_mv = {br + candidates[s][next_chkpts_indices[i]].row,
+ bc + candidates[s][next_chkpts_indices[i]].col};
+ if (!is_mv_in(x, &this_mv))
+ continue;
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ }
+
+ if (best_site != -1) {
+ k = next_chkpts_indices[best_site];
+ br += candidates[s][k].row;
+ bc += candidates[s][k].col;
+ }
+ } while (best_site != -1);
+ }
+
+ // Note: If we enter the if below, then cost_list must be non-NULL.
+ if (s == 0) {
+ cost_list[0] = bestsad;
+ if (!do_init_search || s != best_init_s) {
+ if (check_bounds(x, br, bc, 1 << s)) {
+ for (i = 0; i < num_candidates[s]; i++) {
+ const MV this_mv = {br + candidates[s][i].row,
+ bc + candidates[s][i].col};
+ cost_list[i + 1] =
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ } else {
+ for (i = 0; i < num_candidates[s]; i++) {
+ const MV this_mv = {br + candidates[s][i].row,
+ bc + candidates[s][i].col};
+ if (!is_mv_in(x, &this_mv))
+ continue;
+ cost_list[i + 1] =
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ }
+
+ if (best_site != -1) {
+ br += candidates[s][best_site].row;
+ bc += candidates[s][best_site].col;
+ k = best_site;
+ }
+ }
+ while (best_site != -1) {
+ int next_chkpts_indices[PATTERN_CANDIDATES_REF];
+ best_site = -1;
+ next_chkpts_indices[0] = (k == 0) ? num_candidates[s] - 1 : k - 1;
+ next_chkpts_indices[1] = k;
+ next_chkpts_indices[2] = (k == num_candidates[s] - 1) ? 0 : k + 1;
+ cost_list[1] = cost_list[2] = cost_list[3] = cost_list[4] = INT_MAX;
+ cost_list[((k + 2) % 4) + 1] = cost_list[0];
+ cost_list[0] = bestsad;
+
+ if (check_bounds(x, br, bc, 1 << s)) {
+ for (i = 0; i < PATTERN_CANDIDATES_REF; i++) {
+ const MV this_mv = {br + candidates[s][next_chkpts_indices[i]].row,
+ bc + candidates[s][next_chkpts_indices[i]].col};
+ cost_list[next_chkpts_indices[i] + 1] =
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ } else {
+ for (i = 0; i < PATTERN_CANDIDATES_REF; i++) {
+ const MV this_mv = {br + candidates[s][next_chkpts_indices[i]].row,
+ bc + candidates[s][next_chkpts_indices[i]].col};
+ if (!is_mv_in(x, &this_mv)) {
+ cost_list[next_chkpts_indices[i] + 1] = INT_MAX;
+ continue;
+ }
+ cost_list[next_chkpts_indices[i] + 1] =
+ thissad = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ CHECK_BETTER
+ }
+ }
+
+ if (best_site != -1) {
+ k = next_chkpts_indices[best_site];
+ br += candidates[s][k].row;
+ bc += candidates[s][k].col;
+ }
+ }
+ }
+ }
+
+ // Returns the one-away integer pel sad values around the best as follows:
+ // cost_list[0]: sad at the best integer pel
+ // cost_list[1]: sad at delta {0, -1} (left) from the best integer pel
+ // cost_list[2]: sad at delta { 1, 0} (bottom) from the best integer pel
+ // cost_list[3]: sad at delta { 0, 1} (right) from the best integer pel
+ // cost_list[4]: sad at delta {-1, 0} (top) from the best integer pel
+ if (cost_list) {
+ static const MV neighbors[4] = {{0, -1}, {1, 0}, {0, 1}, {-1, 0}};
+ if (cost_list[0] == INT_MAX) {
+ cost_list[0] = bestsad;
+ if (check_bounds(x, br, bc, 1)) {
+ for (i = 0; i < 4; i++) {
+ const MV this_mv = { br + neighbors[i].row,
+ bc + neighbors[i].col };
+ cost_list[i + 1] = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ }
+ } else {
+ for (i = 0; i < 4; i++) {
+ const MV this_mv = {br + neighbors[i].row,
+ bc + neighbors[i].col};
+ if (!is_mv_in(x, &this_mv))
+ cost_list[i + 1] = INT_MAX;
+ else
+ cost_list[i + 1] = vfp->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &this_mv),
+ in_what->stride);
+ }
+ }
+ } else {
+ if (use_mvcost) {
+ for (i = 0; i < 4; i++) {
+ const MV this_mv = {br + neighbors[i].row,
+ bc + neighbors[i].col};
+ if (cost_list[i + 1] != INT_MAX) {
+ cost_list[i + 1] +=
+ mvsad_err_cost(x, &this_mv, &fcenter_mv, sad_per_bit);
+ }
+ }
+ }
+ }
+ }
+ best_mv->row = br;
+ best_mv->col = bc;
+ return bestsad;
+}
+
+int vp9_get_mvpred_var(const MACROBLOCK *x,
+ const MV *best_mv, const MV *center_mv,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost) {
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ const MV mv = {best_mv->row * 8, best_mv->col * 8};
+ unsigned int unused;
+
+ return vfp->vf(what->buf, what->stride,
+ get_buf_from_mv(in_what, best_mv), in_what->stride, &unused) +
+ (use_mvcost ? mv_err_cost(&mv, center_mv, x->nmvjointcost,
+ x->mvcost, x->errorperbit) : 0);
+}
+
+int vp9_get_mvpred_av_var(const MACROBLOCK *x,
+ const MV *best_mv, const MV *center_mv,
+ const uint8_t *second_pred,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost) {
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ const MV mv = {best_mv->row * 8, best_mv->col * 8};
+ unsigned int unused;
+
+ return vfp->svaf(get_buf_from_mv(in_what, best_mv), in_what->stride, 0, 0,
+ what->buf, what->stride, &unused, second_pred) +
+ (use_mvcost ? mv_err_cost(&mv, center_mv, x->nmvjointcost,
+ x->mvcost, x->errorperbit) : 0);
+}
+
+int vp9_hex_search(const MACROBLOCK *x,
+ MV *ref_mv,
+ int search_param,
+ int sad_per_bit,
+ int do_init_search,
+ int *cost_list,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost,
+ const MV *center_mv, MV *best_mv) {
+ // First scale has 8-closest points, the rest have 6 points in hex shape
+ // at increasing scales
+ static const int hex_num_candidates[MAX_PATTERN_SCALES] = {
+ 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6
+ };
+ // Note that the largest candidate step at each scale is 2^scale
+ static const MV hex_candidates[MAX_PATTERN_SCALES][MAX_PATTERN_CANDIDATES] = {
+ {{-1, -1}, {0, -1}, {1, -1}, {1, 0}, {1, 1}, { 0, 1}, { -1, 1}, {-1, 0}},
+ {{-1, -2}, {1, -2}, {2, 0}, {1, 2}, { -1, 2}, { -2, 0}},
+ {{-2, -4}, {2, -4}, {4, 0}, {2, 4}, { -2, 4}, { -4, 0}},
+ {{-4, -8}, {4, -8}, {8, 0}, {4, 8}, { -4, 8}, { -8, 0}},
+ {{-8, -16}, {8, -16}, {16, 0}, {8, 16}, { -8, 16}, { -16, 0}},
+ {{-16, -32}, {16, -32}, {32, 0}, {16, 32}, { -16, 32}, { -32, 0}},
+ {{-32, -64}, {32, -64}, {64, 0}, {32, 64}, { -32, 64}, { -64, 0}},
+ {{-64, -128}, {64, -128}, {128, 0}, {64, 128}, { -64, 128}, { -128, 0}},
+ {{-128, -256}, {128, -256}, {256, 0}, {128, 256}, { -128, 256}, { -256, 0}},
+ {{-256, -512}, {256, -512}, {512, 0}, {256, 512}, { -256, 512}, { -512, 0}},
+ {{-512, -1024}, {512, -1024}, {1024, 0}, {512, 1024}, { -512, 1024},
+ { -1024, 0}},
+ };
+ return vp9_pattern_search(x, ref_mv, search_param, sad_per_bit,
+ do_init_search, cost_list, vfp, use_mvcost,
+ center_mv, best_mv,
+ hex_num_candidates, hex_candidates);
+}
+
+int vp9_bigdia_search(const MACROBLOCK *x,
+ MV *ref_mv,
+ int search_param,
+ int sad_per_bit,
+ int do_init_search,
+ int *cost_list,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost,
+ const MV *center_mv,
+ MV *best_mv) {
+ // First scale has 4-closest points, the rest have 8 points in diamond
+ // shape at increasing scales
+ static const int bigdia_num_candidates[MAX_PATTERN_SCALES] = {
+ 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+ };
+ // Note that the largest candidate step at each scale is 2^scale
+ static const MV bigdia_candidates[MAX_PATTERN_SCALES]
+ [MAX_PATTERN_CANDIDATES] = {
+ {{0, -1}, {1, 0}, { 0, 1}, {-1, 0}},
+ {{-1, -1}, {0, -2}, {1, -1}, {2, 0}, {1, 1}, {0, 2}, {-1, 1}, {-2, 0}},
+ {{-2, -2}, {0, -4}, {2, -2}, {4, 0}, {2, 2}, {0, 4}, {-2, 2}, {-4, 0}},
+ {{-4, -4}, {0, -8}, {4, -4}, {8, 0}, {4, 4}, {0, 8}, {-4, 4}, {-8, 0}},
+ {{-8, -8}, {0, -16}, {8, -8}, {16, 0}, {8, 8}, {0, 16}, {-8, 8}, {-16, 0}},
+ {{-16, -16}, {0, -32}, {16, -16}, {32, 0}, {16, 16}, {0, 32},
+ {-16, 16}, {-32, 0}},
+ {{-32, -32}, {0, -64}, {32, -32}, {64, 0}, {32, 32}, {0, 64},
+ {-32, 32}, {-64, 0}},
+ {{-64, -64}, {0, -128}, {64, -64}, {128, 0}, {64, 64}, {0, 128},
+ {-64, 64}, {-128, 0}},
+ {{-128, -128}, {0, -256}, {128, -128}, {256, 0}, {128, 128}, {0, 256},
+ {-128, 128}, {-256, 0}},
+ {{-256, -256}, {0, -512}, {256, -256}, {512, 0}, {256, 256}, {0, 512},
+ {-256, 256}, {-512, 0}},
+ {{-512, -512}, {0, -1024}, {512, -512}, {1024, 0}, {512, 512}, {0, 1024},
+ {-512, 512}, {-1024, 0}},
+ };
+ return vp9_pattern_search_sad(x, ref_mv, search_param, sad_per_bit,
+ do_init_search, cost_list, vfp, use_mvcost,
+ center_mv, best_mv,
+ bigdia_num_candidates, bigdia_candidates);
+}
+
+int vp9_square_search(const MACROBLOCK *x,
+ MV *ref_mv,
+ int search_param,
+ int sad_per_bit,
+ int do_init_search,
+ int *cost_list,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost,
+ const MV *center_mv,
+ MV *best_mv) {
+ // All scales have 8 closest points in square shape
+ static const int square_num_candidates[MAX_PATTERN_SCALES] = {
+ 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+ };
+ // Note that the largest candidate step at each scale is 2^scale
+ static const MV square_candidates[MAX_PATTERN_SCALES]
+ [MAX_PATTERN_CANDIDATES] = {
+ {{-1, -1}, {0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}},
+ {{-2, -2}, {0, -2}, {2, -2}, {2, 0}, {2, 2}, {0, 2}, {-2, 2}, {-2, 0}},
+ {{-4, -4}, {0, -4}, {4, -4}, {4, 0}, {4, 4}, {0, 4}, {-4, 4}, {-4, 0}},
+ {{-8, -8}, {0, -8}, {8, -8}, {8, 0}, {8, 8}, {0, 8}, {-8, 8}, {-8, 0}},
+ {{-16, -16}, {0, -16}, {16, -16}, {16, 0}, {16, 16}, {0, 16},
+ {-16, 16}, {-16, 0}},
+ {{-32, -32}, {0, -32}, {32, -32}, {32, 0}, {32, 32}, {0, 32},
+ {-32, 32}, {-32, 0}},
+ {{-64, -64}, {0, -64}, {64, -64}, {64, 0}, {64, 64}, {0, 64},
+ {-64, 64}, {-64, 0}},
+ {{-128, -128}, {0, -128}, {128, -128}, {128, 0}, {128, 128}, {0, 128},
+ {-128, 128}, {-128, 0}},
+ {{-256, -256}, {0, -256}, {256, -256}, {256, 0}, {256, 256}, {0, 256},
+ {-256, 256}, {-256, 0}},
+ {{-512, -512}, {0, -512}, {512, -512}, {512, 0}, {512, 512}, {0, 512},
+ {-512, 512}, {-512, 0}},
+ {{-1024, -1024}, {0, -1024}, {1024, -1024}, {1024, 0}, {1024, 1024},
+ {0, 1024}, {-1024, 1024}, {-1024, 0}},
+ };
+ return vp9_pattern_search(x, ref_mv, search_param, sad_per_bit,
+ do_init_search, cost_list, vfp, use_mvcost,
+ center_mv, best_mv,
+ square_num_candidates, square_candidates);
+}
+
+int vp9_fast_hex_search(const MACROBLOCK *x,
+ MV *ref_mv,
+ int search_param,
+ int sad_per_bit,
+ int do_init_search, // must be zero for fast_hex
+ int *cost_list,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost,
+ const MV *center_mv,
+ MV *best_mv) {
+ return vp9_hex_search(x, ref_mv, MAX(MAX_MVSEARCH_STEPS - 2, search_param),
+ sad_per_bit, do_init_search, cost_list, vfp, use_mvcost,
+ center_mv, best_mv);
+}
+
+int vp9_fast_dia_search(const MACROBLOCK *x,
+ MV *ref_mv,
+ int search_param,
+ int sad_per_bit,
+ int do_init_search,
+ int *cost_list,
+ const vp9_variance_fn_ptr_t *vfp,
+ int use_mvcost,
+ const MV *center_mv,
+ MV *best_mv) {
+ return vp9_bigdia_search(x, ref_mv, MAX(MAX_MVSEARCH_STEPS - 2, search_param),
+ sad_per_bit, do_init_search, cost_list, vfp,
+ use_mvcost, center_mv, best_mv);
+}
+
+#undef CHECK_BETTER
+
+int vp9_full_range_search_c(const MACROBLOCK *x,
+ const search_site_config *cfg,
+ MV *ref_mv, MV *best_mv,
+ int search_param, int sad_per_bit, int *num00,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *center_mv) {
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ const int range = 64;
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ unsigned int best_sad = INT_MAX;
+ int r, c, i;
+ int start_col, end_col, start_row, end_row;
+
+ // The cfg and search_param parameters are not used in this search variant
+ (void)cfg;
+ (void)search_param;
+
+ clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
+ *best_mv = *ref_mv;
+ *num00 = 11;
+ best_sad = fn_ptr->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, ref_mv), in_what->stride) +
+ mvsad_err_cost(x, ref_mv, &fcenter_mv, sad_per_bit);
+ start_row = MAX(-range, x->mv_row_min - ref_mv->row);
+ start_col = MAX(-range, x->mv_col_min - ref_mv->col);
+ end_row = MIN(range, x->mv_row_max - ref_mv->row);
+ end_col = MIN(range, x->mv_col_max - ref_mv->col);
+
+ for (r = start_row; r <= end_row; ++r) {
+ for (c = start_col; c <= end_col; c += 4) {
+ if (c + 3 <= end_col) {
+ unsigned int sads[4];
+ const uint8_t *addrs[4];
+ for (i = 0; i < 4; ++i) {
+ const MV mv = {ref_mv->row + r, ref_mv->col + c + i};
+ addrs[i] = get_buf_from_mv(in_what, &mv);
+ }
+
+ fn_ptr->sdx4df(what->buf, what->stride, addrs, in_what->stride, sads);
+
+ for (i = 0; i < 4; ++i) {
+ if (sads[i] < best_sad) {
+ const MV mv = {ref_mv->row + r, ref_mv->col + c + i};
+ const unsigned int sad = sads[i] +
+ mvsad_err_cost(x, &mv, &fcenter_mv, sad_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ *best_mv = mv;
+ }
+ }
+ }
+ } else {
+ for (i = 0; i < end_col - c; ++i) {
+ const MV mv = {ref_mv->row + r, ref_mv->col + c + i};
+ unsigned int sad = fn_ptr->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &mv), in_what->stride);
+ if (sad < best_sad) {
+ sad += mvsad_err_cost(x, &mv, &fcenter_mv, sad_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ *best_mv = mv;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return best_sad;
+}
+
+int vp9_diamond_search_sad_c(const MACROBLOCK *x,
+ const search_site_config *cfg,
+ MV *ref_mv, MV *best_mv, int search_param,
+ int sad_per_bit, int *num00,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *center_mv) {
+ int i, j, step;
+
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ uint8_t *what = x->plane[0].src.buf;
+ const int what_stride = x->plane[0].src.stride;
+ const uint8_t *in_what;
+ const int in_what_stride = xd->plane[0].pre[0].stride;
+ const uint8_t *best_address;
+
+ unsigned int bestsad = INT_MAX;
+ int best_site = 0;
+ int last_site = 0;
+
+ int ref_row;
+ int ref_col;
+
+ // search_param determines the length of the initial step and hence the number
+ // of iterations.
+ // 0 = initial step (MAX_FIRST_STEP) pel
+ // 1 = (MAX_FIRST_STEP/2) pel,
+ // 2 = (MAX_FIRST_STEP/4) pel...
+ const search_site *ss = &cfg->ss[search_param * cfg->searches_per_step];
+ const int tot_steps = (cfg->ss_count / cfg->searches_per_step) - search_param;
+
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
+ ref_row = ref_mv->row;
+ ref_col = ref_mv->col;
+ *num00 = 0;
+ best_mv->row = ref_row;
+ best_mv->col = ref_col;
+
+ // Work out the start point for the search
+ in_what = xd->plane[0].pre[0].buf + ref_row * in_what_stride + ref_col;
+ best_address = in_what;
+
+ // Check the starting position
+ bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride)
+ + mvsad_err_cost(x, best_mv, &fcenter_mv, sad_per_bit);
+
+ i = 1;
+
+ for (step = 0; step < tot_steps; step++) {
+ int all_in = 1, t;
+
+ // All_in is true if every one of the points we are checking are within
+ // the bounds of the image.
+ all_in &= ((best_mv->row + ss[i].mv.row) > x->mv_row_min);
+ all_in &= ((best_mv->row + ss[i + 1].mv.row) < x->mv_row_max);
+ all_in &= ((best_mv->col + ss[i + 2].mv.col) > x->mv_col_min);
+ all_in &= ((best_mv->col + ss[i + 3].mv.col) < x->mv_col_max);
+
+ // If all the pixels are within the bounds we don't check whether the
+ // search point is valid in this loop, otherwise we check each point
+ // for validity..
+ if (all_in) {
+ unsigned int sad_array[4];
+
+ for (j = 0; j < cfg->searches_per_step; j += 4) {
+ unsigned char const *block_offset[4];
+
+ for (t = 0; t < 4; t++)
+ block_offset[t] = ss[i + t].offset + best_address;
+
+ fn_ptr->sdx4df(what, what_stride, block_offset, in_what_stride,
+ sad_array);
+
+ for (t = 0; t < 4; t++, i++) {
+ if (sad_array[t] < bestsad) {
+ const MV this_mv = {best_mv->row + ss[i].mv.row,
+ best_mv->col + ss[i].mv.col};
+ sad_array[t] += mvsad_err_cost(x, &this_mv, &fcenter_mv,
+ sad_per_bit);
+ if (sad_array[t] < bestsad) {
+ bestsad = sad_array[t];
+ best_site = i;
+ }
+ }
+ }
+ }
+ } else {
+ for (j = 0; j < cfg->searches_per_step; j++) {
+ // Trap illegal vectors
+ const MV this_mv = {best_mv->row + ss[i].mv.row,
+ best_mv->col + ss[i].mv.col};
+
+ if (is_mv_in(x, &this_mv)) {
+ const uint8_t *const check_here = ss[i].offset + best_address;
+ unsigned int thissad = fn_ptr->sdf(what, what_stride, check_here,
+ in_what_stride);
+
+ if (thissad < bestsad) {
+ thissad += mvsad_err_cost(x, &this_mv, &fcenter_mv, sad_per_bit);
+ if (thissad < bestsad) {
+ bestsad = thissad;
+ best_site = i;
+ }
+ }
+ }
+ i++;
+ }
+ }
+ if (best_site != last_site) {
+ best_mv->row += ss[best_site].mv.row;
+ best_mv->col += ss[best_site].mv.col;
+ best_address += ss[best_site].offset;
+ last_site = best_site;
+#if defined(NEW_DIAMOND_SEARCH)
+ while (1) {
+ const MV this_mv = {best_mv->row + ss[best_site].mv.row,
+ best_mv->col + ss[best_site].mv.col};
+ if (is_mv_in(x, &this_mv)) {
+ const uint8_t *const check_here = ss[best_site].offset + best_address;
+ unsigned int thissad = fn_ptr->sdf(what, what_stride, check_here,
+ in_what_stride);
+ if (thissad < bestsad) {
+ thissad += mvsad_err_cost(x, &this_mv, &fcenter_mv, sad_per_bit);
+ if (thissad < bestsad) {
+ bestsad = thissad;
+ best_mv->row += ss[best_site].mv.row;
+ best_mv->col += ss[best_site].mv.col;
+ best_address += ss[best_site].offset;
+ continue;
+ }
+ }
+ }
+ break;
+ };
+#endif
+ } else if (best_address == in_what) {
+ (*num00)++;
+ }
+ }
+ return bestsad;
+}
+
+static int vector_match(int16_t *ref, int16_t *src, int bwl) {
+ int best_sad = INT_MAX;
+ int this_sad;
+ int d;
+ int center, offset = 0;
+ int bw = 4 << bwl; // redundant variable, to be changed in the experiments.
+ for (d = 0; d <= bw; d += 16) {
+ this_sad = vp9_vector_var(&ref[d], src, bwl);
+ if (this_sad < best_sad) {
+ best_sad = this_sad;
+ offset = d;
+ }
+ }
+ center = offset;
+
+ for (d = -8; d <= 8; d += 16) {
+ int this_pos = offset + d;
+ // check limit
+ if (this_pos < 0 || this_pos > bw)
+ continue;
+ this_sad = vp9_vector_var(&ref[this_pos], src, bwl);
+ if (this_sad < best_sad) {
+ best_sad = this_sad;
+ center = this_pos;
+ }
+ }
+ offset = center;
+
+ for (d = -4; d <= 4; d += 8) {
+ int this_pos = offset + d;
+ // check limit
+ if (this_pos < 0 || this_pos > bw)
+ continue;
+ this_sad = vp9_vector_var(&ref[this_pos], src, bwl);
+ if (this_sad < best_sad) {
+ best_sad = this_sad;
+ center = this_pos;
+ }
+ }
+ offset = center;
+
+ for (d = -2; d <= 2; d += 4) {
+ int this_pos = offset + d;
+ // check limit
+ if (this_pos < 0 || this_pos > bw)
+ continue;
+ this_sad = vp9_vector_var(&ref[this_pos], src, bwl);
+ if (this_sad < best_sad) {
+ best_sad = this_sad;
+ center = this_pos;
+ }
+ }
+ offset = center;
+
+ for (d = -1; d <= 1; d += 2) {
+ int this_pos = offset + d;
+ // check limit
+ if (this_pos < 0 || this_pos > bw)
+ continue;
+ this_sad = vp9_vector_var(&ref[this_pos], src, bwl);
+ if (this_sad < best_sad) {
+ best_sad = this_sad;
+ center = this_pos;
+ }
+ }
+
+ return (center - (bw >> 1));
+}
+
+static const MV search_pos[4] = {
+ {-1, 0}, {0, -1}, {0, 1}, {1, 0},
+};
+
+unsigned int vp9_int_pro_motion_estimation(const VP9_COMP *cpi, MACROBLOCK *x,
+ BLOCK_SIZE bsize,
+ int mi_row, int mi_col) {
+ MACROBLOCKD *xd = &x->e_mbd;
+ MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
+ struct buf_2d backup_yv12[MAX_MB_PLANE] = {{0, 0}};
+ DECLARE_ALIGNED(16, int16_t, hbuf[128]);
+ DECLARE_ALIGNED(16, int16_t, vbuf[128]);
+ DECLARE_ALIGNED(16, int16_t, src_hbuf[64]);
+ DECLARE_ALIGNED(16, int16_t, src_vbuf[64]);
+ int idx;
+ const int bw = 4 << b_width_log2_lookup[bsize];
+ const int bh = 4 << b_height_log2_lookup[bsize];
+ const int search_width = bw << 1;
+ const int search_height = bh << 1;
+ const int src_stride = x->plane[0].src.stride;
+ const int ref_stride = xd->plane[0].pre[0].stride;
+ uint8_t const *ref_buf, *src_buf;
+ MV *tmp_mv = &xd->mi[0]->mbmi.mv[0].as_mv;
+ unsigned int best_sad, tmp_sad, this_sad[4];
+ MV this_mv;
+ const int norm_factor = 3 + (bw >> 5);
+ const YV12_BUFFER_CONFIG *scaled_ref_frame =
+ vp9_get_scaled_ref_frame(cpi, mbmi->ref_frame[0]);
+
+ if (scaled_ref_frame) {
+ int i;
+ // Swap out the reference frame for a version that's been scaled to
+ // match the resolution of the current frame, allowing the existing
+ // motion search code to be used without additional modifications.
+ for (i = 0; i < MAX_MB_PLANE; i++)
+ backup_yv12[i] = xd->plane[i].pre[0];
+ vp9_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL);
+ }
+
+#if CONFIG_VP9_HIGHBITDEPTH
+ {
+ unsigned int this_sad;
+ tmp_mv->row = 0;
+ tmp_mv->col = 0;
+ this_sad = cpi->fn_ptr[bsize].sdf(x->plane[0].src.buf, src_stride,
+ xd->plane[0].pre[0].buf, ref_stride);
+
+ if (scaled_ref_frame) {
+ int i;
+ for (i = 0; i < MAX_MB_PLANE; i++)
+ xd->plane[i].pre[0] = backup_yv12[i];
+ }
+ return this_sad;
+ }
+#endif
+
+ // Set up prediction 1-D reference set
+ ref_buf = xd->plane[0].pre[0].buf - (bw >> 1);
+ for (idx = 0; idx < search_width; idx += 16) {
+ vp9_int_pro_row(&hbuf[idx], ref_buf, ref_stride, bh);
+ ref_buf += 16;
+ }
+
+ ref_buf = xd->plane[0].pre[0].buf - (bh >> 1) * ref_stride;
+ for (idx = 0; idx < search_height; ++idx) {
+ vbuf[idx] = vp9_int_pro_col(ref_buf, bw) >> norm_factor;
+ ref_buf += ref_stride;
+ }
+
+ // Set up src 1-D reference set
+ for (idx = 0; idx < bw; idx += 16) {
+ src_buf = x->plane[0].src.buf + idx;
+ vp9_int_pro_row(&src_hbuf[idx], src_buf, src_stride, bh);
+ }
+
+ src_buf = x->plane[0].src.buf;
+ for (idx = 0; idx < bh; ++idx) {
+ src_vbuf[idx] = vp9_int_pro_col(src_buf, bw) >> norm_factor;
+ src_buf += src_stride;
+ }
+
+ // Find the best match per 1-D search
+ tmp_mv->col = vector_match(hbuf, src_hbuf, b_width_log2_lookup[bsize]);
+ tmp_mv->row = vector_match(vbuf, src_vbuf, b_height_log2_lookup[bsize]);
+
+ this_mv = *tmp_mv;
+ src_buf = x->plane[0].src.buf;
+ ref_buf = xd->plane[0].pre[0].buf + this_mv.row * ref_stride + this_mv.col;
+ best_sad = cpi->fn_ptr[bsize].sdf(src_buf, src_stride, ref_buf, ref_stride);
+
+ {
+ const uint8_t * const pos[4] = {
+ ref_buf - ref_stride,
+ ref_buf - 1,
+ ref_buf + 1,
+ ref_buf + ref_stride,
+ };
+
+ cpi->fn_ptr[bsize].sdx4df(src_buf, src_stride, pos, ref_stride, this_sad);
+ }
+
+ for (idx = 0; idx < 4; ++idx) {
+ if (this_sad[idx] < best_sad) {
+ best_sad = this_sad[idx];
+ tmp_mv->row = search_pos[idx].row + this_mv.row;
+ tmp_mv->col = search_pos[idx].col + this_mv.col;
+ }
+ }
+
+ if (this_sad[0] < this_sad[3])
+ this_mv.row -= 1;
+ else
+ this_mv.row += 1;
+
+ if (this_sad[1] < this_sad[2])
+ this_mv.col -= 1;
+ else
+ this_mv.col += 1;
+
+ ref_buf = xd->plane[0].pre[0].buf + this_mv.row * ref_stride + this_mv.col;
+
+ tmp_sad = cpi->fn_ptr[bsize].sdf(src_buf, src_stride,
+ ref_buf, ref_stride);
+ if (best_sad > tmp_sad) {
+ *tmp_mv = this_mv;
+ best_sad = tmp_sad;
+ }
+
+ tmp_mv->row *= 8;
+ tmp_mv->col *= 8;
+
+ if (scaled_ref_frame) {
+ int i;
+ for (i = 0; i < MAX_MB_PLANE; i++)
+ xd->plane[i].pre[0] = backup_yv12[i];
+ }
+
+ return best_sad;
+}
+
+/* do_refine: If last step (1-away) of n-step search doesn't pick the center
+ point as the best match, we will do a final 1-away diamond
+ refining search */
+int vp9_full_pixel_diamond(const VP9_COMP *cpi, MACROBLOCK *x,
+ MV *mvp_full, int step_param,
+ int sadpb, int further_steps, int do_refine,
+ int *cost_list,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *ref_mv, MV *dst_mv) {
+ MV temp_mv;
+ int thissme, n, num00 = 0;
+ int bestsme = cpi->diamond_search_sad(x, &cpi->ss_cfg, mvp_full, &temp_mv,
+ step_param, sadpb, &n,
+ fn_ptr, ref_mv);
+ if (bestsme < INT_MAX)
+ bestsme = vp9_get_mvpred_var(x, &temp_mv, ref_mv, fn_ptr, 1);
+ *dst_mv = temp_mv;
+
+ // If there won't be more n-step search, check to see if refining search is
+ // needed.
+ if (n > further_steps)
+ do_refine = 0;
+
+ while (n < further_steps) {
+ ++n;
+
+ if (num00) {
+ num00--;
+ } else {
+ thissme = cpi->diamond_search_sad(x, &cpi->ss_cfg, mvp_full, &temp_mv,
+ step_param + n, sadpb, &num00,
+ fn_ptr, ref_mv);
+ if (thissme < INT_MAX)
+ thissme = vp9_get_mvpred_var(x, &temp_mv, ref_mv, fn_ptr, 1);
+
+ // check to see if refining search is needed.
+ if (num00 > further_steps - n)
+ do_refine = 0;
+
+ if (thissme < bestsme) {
+ bestsme = thissme;
+ *dst_mv = temp_mv;
+ }
+ }
+ }
+
+ // final 1-away diamond refining search
+ if (do_refine) {
+ const int search_range = 8;
+ MV best_mv = *dst_mv;
+ thissme = vp9_refining_search_sad(x, &best_mv, sadpb, search_range,
+ fn_ptr, ref_mv);
+ if (thissme < INT_MAX)
+ thissme = vp9_get_mvpred_var(x, &best_mv, ref_mv, fn_ptr, 1);
+ if (thissme < bestsme) {
+ bestsme = thissme;
+ *dst_mv = best_mv;
+ }
+ }
+
+ // Return cost list.
+ if (cost_list) {
+ calc_int_cost_list(x, ref_mv, sadpb, fn_ptr, dst_mv, cost_list);
+ }
+ return bestsme;
+}
+
+int vp9_full_search_sad_c(const MACROBLOCK *x, const MV *ref_mv,
+ int sad_per_bit, int distance,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *center_mv, MV *best_mv) {
+ int r, c;
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ const int row_min = MAX(ref_mv->row - distance, x->mv_row_min);
+ const int row_max = MIN(ref_mv->row + distance, x->mv_row_max);
+ const int col_min = MAX(ref_mv->col - distance, x->mv_col_min);
+ const int col_max = MIN(ref_mv->col + distance, x->mv_col_max);
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ int best_sad = fn_ptr->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, ref_mv), in_what->stride) +
+ mvsad_err_cost(x, ref_mv, &fcenter_mv, sad_per_bit);
+ *best_mv = *ref_mv;
+
+ for (r = row_min; r < row_max; ++r) {
+ for (c = col_min; c < col_max; ++c) {
+ const MV mv = {r, c};
+ const int sad = fn_ptr->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &mv), in_what->stride) +
+ mvsad_err_cost(x, &mv, &fcenter_mv, sad_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ *best_mv = mv;
+ }
+ }
+ }
+ return best_sad;
+}
+
+int vp9_full_search_sadx3(const MACROBLOCK *x, const MV *ref_mv,
+ int sad_per_bit, int distance,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *center_mv, MV *best_mv) {
+ int r;
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ const int row_min = MAX(ref_mv->row - distance, x->mv_row_min);
+ const int row_max = MIN(ref_mv->row + distance, x->mv_row_max);
+ const int col_min = MAX(ref_mv->col - distance, x->mv_col_min);
+ const int col_max = MIN(ref_mv->col + distance, x->mv_col_max);
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ unsigned int best_sad = fn_ptr->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, ref_mv), in_what->stride) +
+ mvsad_err_cost(x, ref_mv, &fcenter_mv, sad_per_bit);
+ *best_mv = *ref_mv;
+
+ for (r = row_min; r < row_max; ++r) {
+ int c = col_min;
+ const uint8_t *check_here = &in_what->buf[r * in_what->stride + c];
+
+ if (fn_ptr->sdx3f != NULL) {
+ while ((c + 2) < col_max) {
+ int i;
+ DECLARE_ALIGNED(16, uint32_t, sads[3]);
+
+ fn_ptr->sdx3f(what->buf, what->stride, check_here, in_what->stride,
+ sads);
+
+ for (i = 0; i < 3; ++i) {
+ unsigned int sad = sads[i];
+ if (sad < best_sad) {
+ const MV mv = {r, c};
+ sad += mvsad_err_cost(x, &mv, &fcenter_mv, sad_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ *best_mv = mv;
+ }
+ }
+ ++check_here;
+ ++c;
+ }
+ }
+ }
+
+ while (c < col_max) {
+ unsigned int sad = fn_ptr->sdf(what->buf, what->stride,
+ check_here, in_what->stride);
+ if (sad < best_sad) {
+ const MV mv = {r, c};
+ sad += mvsad_err_cost(x, &mv, &fcenter_mv, sad_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ *best_mv = mv;
+ }
+ }
+ ++check_here;
+ ++c;
+ }
+ }
+
+ return best_sad;
+}
+
+int vp9_full_search_sadx8(const MACROBLOCK *x, const MV *ref_mv,
+ int sad_per_bit, int distance,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *center_mv, MV *best_mv) {
+ int r;
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ const int row_min = MAX(ref_mv->row - distance, x->mv_row_min);
+ const int row_max = MIN(ref_mv->row + distance, x->mv_row_max);
+ const int col_min = MAX(ref_mv->col - distance, x->mv_col_min);
+ const int col_max = MIN(ref_mv->col + distance, x->mv_col_max);
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ unsigned int best_sad = fn_ptr->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, ref_mv), in_what->stride) +
+ mvsad_err_cost(x, ref_mv, &fcenter_mv, sad_per_bit);
+ *best_mv = *ref_mv;
+
+ for (r = row_min; r < row_max; ++r) {
+ int c = col_min;
+ const uint8_t *check_here = &in_what->buf[r * in_what->stride + c];
+
+ if (fn_ptr->sdx8f != NULL) {
+ while ((c + 7) < col_max) {
+ int i;
+ DECLARE_ALIGNED(16, uint32_t, sads[8]);
+
+ fn_ptr->sdx8f(what->buf, what->stride, check_here, in_what->stride,
+ sads);
+
+ for (i = 0; i < 8; ++i) {
+ unsigned int sad = sads[i];
+ if (sad < best_sad) {
+ const MV mv = {r, c};
+ sad += mvsad_err_cost(x, &mv, &fcenter_mv, sad_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ *best_mv = mv;
+ }
+ }
+ ++check_here;
+ ++c;
+ }
+ }
+ }
+
+ if (fn_ptr->sdx3f != NULL) {
+ while ((c + 2) < col_max) {
+ int i;
+ DECLARE_ALIGNED(16, uint32_t, sads[3]);
+
+ fn_ptr->sdx3f(what->buf, what->stride, check_here, in_what->stride,
+ sads);
+
+ for (i = 0; i < 3; ++i) {
+ unsigned int sad = sads[i];
+ if (sad < best_sad) {
+ const MV mv = {r, c};
+ sad += mvsad_err_cost(x, &mv, &fcenter_mv, sad_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ *best_mv = mv;
+ }
+ }
+ ++check_here;
+ ++c;
+ }
+ }
+ }
+
+ while (c < col_max) {
+ unsigned int sad = fn_ptr->sdf(what->buf, what->stride,
+ check_here, in_what->stride);
+ if (sad < best_sad) {
+ const MV mv = {r, c};
+ sad += mvsad_err_cost(x, &mv, &fcenter_mv, sad_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ *best_mv = mv;
+ }
+ }
+ ++check_here;
+ ++c;
+ }
+ }
+
+ return best_sad;
+}
+
+int vp9_refining_search_sad(const MACROBLOCK *x,
+ MV *ref_mv, int error_per_bit,
+ int search_range,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *center_mv) {
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ const MV neighbors[4] = {{ -1, 0}, {0, -1}, {0, 1}, {1, 0}};
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ const uint8_t *best_address = get_buf_from_mv(in_what, ref_mv);
+ unsigned int best_sad = fn_ptr->sdf(what->buf, what->stride, best_address,
+ in_what->stride) +
+ mvsad_err_cost(x, ref_mv, &fcenter_mv, error_per_bit);
+ int i, j;
+
+ for (i = 0; i < search_range; i++) {
+ int best_site = -1;
+ const int all_in = ((ref_mv->row - 1) > x->mv_row_min) &
+ ((ref_mv->row + 1) < x->mv_row_max) &
+ ((ref_mv->col - 1) > x->mv_col_min) &
+ ((ref_mv->col + 1) < x->mv_col_max);
+
+ if (all_in) {
+ unsigned int sads[4];
+ const uint8_t *const positions[4] = {
+ best_address - in_what->stride,
+ best_address - 1,
+ best_address + 1,
+ best_address + in_what->stride
+ };
+
+ fn_ptr->sdx4df(what->buf, what->stride, positions, in_what->stride, sads);
+
+ for (j = 0; j < 4; ++j) {
+ if (sads[j] < best_sad) {
+ const MV mv = {ref_mv->row + neighbors[j].row,
+ ref_mv->col + neighbors[j].col};
+ sads[j] += mvsad_err_cost(x, &mv, &fcenter_mv, error_per_bit);
+ if (sads[j] < best_sad) {
+ best_sad = sads[j];
+ best_site = j;
+ }
+ }
+ }
+ } else {
+ for (j = 0; j < 4; ++j) {
+ const MV mv = {ref_mv->row + neighbors[j].row,
+ ref_mv->col + neighbors[j].col};
+
+ if (is_mv_in(x, &mv)) {
+ unsigned int sad = fn_ptr->sdf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &mv),
+ in_what->stride);
+ if (sad < best_sad) {
+ sad += mvsad_err_cost(x, &mv, &fcenter_mv, error_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ best_site = j;
+ }
+ }
+ }
+ }
+ }
+
+ if (best_site == -1) {
+ break;
+ } else {
+ ref_mv->row += neighbors[best_site].row;
+ ref_mv->col += neighbors[best_site].col;
+ best_address = get_buf_from_mv(in_what, ref_mv);
+ }
+ }
+
+ return best_sad;
+}
+
+// This function is called when we do joint motion search in comp_inter_inter
+// mode.
+int vp9_refining_search_8p_c(const MACROBLOCK *x,
+ MV *ref_mv, int error_per_bit,
+ int search_range,
+ const vp9_variance_fn_ptr_t *fn_ptr,
+ const MV *center_mv,
+ const uint8_t *second_pred) {
+ const MV neighbors[8] = {{-1, 0}, {0, -1}, {0, 1}, {1, 0},
+ {-1, -1}, {1, -1}, {-1, 1}, {1, 1}};
+ const MACROBLOCKD *const xd = &x->e_mbd;
+ const struct buf_2d *const what = &x->plane[0].src;
+ const struct buf_2d *const in_what = &xd->plane[0].pre[0];
+ const MV fcenter_mv = {center_mv->row >> 3, center_mv->col >> 3};
+ unsigned int best_sad = fn_ptr->sdaf(what->buf, what->stride,
+ get_buf_from_mv(in_what, ref_mv), in_what->stride, second_pred) +
+ mvsad_err_cost(x, ref_mv, &fcenter_mv, error_per_bit);
+ int i, j;
+
+ for (i = 0; i < search_range; ++i) {
+ int best_site = -1;
+
+ for (j = 0; j < 8; ++j) {
+ const MV mv = {ref_mv->row + neighbors[j].row,
+ ref_mv->col + neighbors[j].col};
+
+ if (is_mv_in(x, &mv)) {
+ unsigned int sad = fn_ptr->sdaf(what->buf, what->stride,
+ get_buf_from_mv(in_what, &mv), in_what->stride, second_pred);
+ if (sad < best_sad) {
+ sad += mvsad_err_cost(x, &mv, &fcenter_mv, error_per_bit);
+ if (sad < best_sad) {
+ best_sad = sad;
+ best_site = j;
+ }
+ }
+ }
+ }
+
+ if (best_site == -1) {
+ break;
+ } else {
+ ref_mv->row += neighbors[best_site].row;
+ ref_mv->col += neighbors[best_site].col;
+ }
+ }
+ return best_sad;
+}
+
+int vp9_full_pixel_search(VP9_COMP *cpi, MACROBLOCK *x,
+ BLOCK_SIZE bsize, MV *mvp_full,
+ int step_param, int error_per_bit,
+ int *cost_list,
+ const MV *ref_mv, MV *tmp_mv,
+ int var_max, int rd) {
+ const SPEED_FEATURES *const sf = &cpi->sf;
+ const SEARCH_METHODS method = sf->mv.search_method;
+ vp9_variance_fn_ptr_t *fn_ptr = &cpi->fn_ptr[bsize];
+ int var = 0;
+ if (cost_list) {
+ cost_list[0] = INT_MAX;
+ cost_list[1] = INT_MAX;
+ cost_list[2] = INT_MAX;
+ cost_list[3] = INT_MAX;
+ cost_list[4] = INT_MAX;
+ }
+
+ switch (method) {
+ case FAST_DIAMOND:
+ var = vp9_fast_dia_search(x, mvp_full, step_param, error_per_bit, 0,
+ cost_list, fn_ptr, 1, ref_mv, tmp_mv);
+ break;
+ case FAST_HEX:
+ var = vp9_fast_hex_search(x, mvp_full, step_param, error_per_bit, 0,
+ cost_list, fn_ptr, 1, ref_mv, tmp_mv);
+ break;
+ case HEX:
+ var = vp9_hex_search(x, mvp_full, step_param, error_per_bit, 1,
+ cost_list, fn_ptr, 1, ref_mv, tmp_mv);
+ break;
+ case SQUARE:
+ var = vp9_square_search(x, mvp_full, step_param, error_per_bit, 1,
+ cost_list, fn_ptr, 1, ref_mv, tmp_mv);
+ break;
+ case BIGDIA:
+ var = vp9_bigdia_search(x, mvp_full, step_param, error_per_bit, 1,
+ cost_list, fn_ptr, 1, ref_mv, tmp_mv);
+ break;
+ case NSTEP:
+ var = vp9_full_pixel_diamond(cpi, x, mvp_full, step_param, error_per_bit,
+ MAX_MVSEARCH_STEPS - 1 - step_param,
+ 1, cost_list, fn_ptr, ref_mv, tmp_mv);
+ break;
+ default:
+ assert(0 && "Invalid search method.");
+ }
+
+ if (method != NSTEP && rd && var < var_max)
+ var = vp9_get_mvpred_var(x, tmp_mv, ref_mv, fn_ptr, 1);
+
+ return var;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 08:12:05 +0000