findnearmv.h 5.58 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5 6
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
7
 *  in the file PATENTS.  All contributing project authors may
8
 *  be found in the AUTHORS file in the root of the source tree.
John Koleszar's avatar
John Koleszar committed
9 10 11 12 13 14 15 16 17 18
 */


#ifndef __INC_FINDNEARMV_H
#define __INC_FINDNEARMV_H

#include "mv.h"
#include "blockd.h"
#include "modecont.h"
#include "treecoder.h"
Yaowu Xu's avatar
Yaowu Xu committed
19
#include "onyxc_int.h"
John Koleszar's avatar
John Koleszar committed
20

Christian Duvivier's avatar
Christian Duvivier committed
21 22 23 24
/* 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
 */
25
void vp9_find_best_ref_mvs(MACROBLOCKD *xd,
Christian Duvivier's avatar
Christian Duvivier committed
26 27
                           unsigned char *ref_y_buffer,
                           int ref_y_stride,
Paul Wilkins's avatar
Paul Wilkins committed
28
                           int_mv *mvlist,
Christian Duvivier's avatar
Christian Duvivier committed
29 30 31
                           int_mv *best_mv,
                           int_mv *nearest,
                           int_mv *near);
Yunqing Wang's avatar
Yunqing Wang committed
32

John Koleszar's avatar
John Koleszar committed
33 34 35 36 37 38 39 40
static void mv_bias(int refmb_ref_frame_sign_bias, int refframe, int_mv *mvp, const int *ref_frame_sign_bias) {
  MV xmv;
  xmv = mvp->as_mv;

  if (refmb_ref_frame_sign_bias != ref_frame_sign_bias[refframe]) {
    xmv.row *= -1;
    xmv.col *= -1;
  }
Yunqing Wang's avatar
Yunqing Wang committed
41

John Koleszar's avatar
John Koleszar committed
42
  mvp->as_mv = xmv;
Yunqing Wang's avatar
Yunqing Wang committed
43 44 45 46
}

#define LEFT_TOP_MARGIN (16 << 3)
#define RIGHT_BOTTOM_MARGIN (16 << 3)
Scott LaVarnway's avatar
Scott LaVarnway committed
47

48 49 50 51 52
static void clamp_mv(int_mv *mv,
                     int mb_to_left_edge,
                     int mb_to_right_edge,
                     int mb_to_top_edge,
                     int mb_to_bottom_edge) {
John Koleszar's avatar
John Koleszar committed
53 54 55 56 57 58 59 60
  mv->as_mv.col = (mv->as_mv.col < mb_to_left_edge) ?
                  mb_to_left_edge : mv->as_mv.col;
  mv->as_mv.col = (mv->as_mv.col > mb_to_right_edge) ?
                  mb_to_right_edge : mv->as_mv.col;
  mv->as_mv.row = (mv->as_mv.row < mb_to_top_edge) ?
                  mb_to_top_edge : mv->as_mv.row;
  mv->as_mv.row = (mv->as_mv.row > mb_to_bottom_edge) ?
                  mb_to_bottom_edge : mv->as_mv.row;
Scott LaVarnway's avatar
Scott LaVarnway committed
61
}
62

63 64 65 66 67 68
static void clamp_mv2(int_mv *mv, const MACROBLOCKD *xd) {
  clamp_mv(mv,
           xd->mb_to_left_edge - LEFT_TOP_MARGIN,
           xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN,
           xd->mb_to_top_edge - LEFT_TOP_MARGIN,
           xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN);
69 70
}

71 72 73 74 75
static unsigned int check_mv_bounds(int_mv *mv,
                                    int mb_to_left_edge,
                                    int mb_to_right_edge,
                                    int mb_to_top_edge,
                                    int mb_to_bottom_edge) {
76 77 78 79
  return (mv->as_mv.col < mb_to_left_edge) ||
         (mv->as_mv.col > mb_to_right_edge) ||
         (mv->as_mv.row < mb_to_top_edge) ||
         (mv->as_mv.row > mb_to_bottom_edge);
Yunqing Wang's avatar
Yunqing Wang committed
80 81
}

82
vp9_prob *vp9_mv_ref_probs(VP9_COMMON *pc,
83
                           vp9_prob p[VP9_MVREFS - 1],
Paul Wilkins's avatar
Paul Wilkins committed
84
                           const int context);
John Koleszar's avatar
John Koleszar committed
85

86
extern const unsigned char vp9_mbsplit_offset[4][16];
John Koleszar's avatar
John Koleszar committed
87

John Koleszar's avatar
John Koleszar committed
88 89 90 91
static int left_block_mv(const MODE_INFO *cur_mb, int b) {
  if (!(b & 3)) {
    /* On L edge, get from MB to left of us */
    --cur_mb;
Scott LaVarnway's avatar
Scott LaVarnway committed
92

John Koleszar's avatar
John Koleszar committed
93
    if (cur_mb->mbmi.mode != SPLITMV)
94
      return cur_mb->mbmi.mv[0].as_int;
John Koleszar's avatar
John Koleszar committed
95 96
    b += 4;
  }
Scott LaVarnway's avatar
Scott LaVarnway committed
97

John Koleszar's avatar
John Koleszar committed
98
  return (cur_mb->bmi + b - 1)->as_mv.first.as_int;
99 100
}

John Koleszar's avatar
John Koleszar committed
101 102 103 104
static int left_block_second_mv(const MODE_INFO *cur_mb, int b) {
  if (!(b & 3)) {
    /* On L edge, get from MB to left of us */
    --cur_mb;
105

John Koleszar's avatar
John Koleszar committed
106
    if (cur_mb->mbmi.mode != SPLITMV)
107
      return cur_mb->mbmi.second_ref_frame ? cur_mb->mbmi.mv[1].as_int : cur_mb->mbmi.mv[0].as_int;
John Koleszar's avatar
John Koleszar committed
108 109
    b += 4;
  }
110

John Koleszar's avatar
John Koleszar committed
111
  return cur_mb->mbmi.second_ref_frame ? (cur_mb->bmi + b - 1)->as_mv.second.as_int : (cur_mb->bmi + b - 1)->as_mv.first.as_int;
Scott LaVarnway's avatar
Scott LaVarnway committed
112 113
}

John Koleszar's avatar
John Koleszar committed
114 115 116 117
static int above_block_mv(const MODE_INFO *cur_mb, int b, int mi_stride) {
  if (!(b >> 2)) {
    /* On top edge, get from MB above us */
    cur_mb -= mi_stride;
Scott LaVarnway's avatar
Scott LaVarnway committed
118

John Koleszar's avatar
John Koleszar committed
119
    if (cur_mb->mbmi.mode != SPLITMV)
120
      return cur_mb->mbmi.mv[0].as_int;
John Koleszar's avatar
John Koleszar committed
121 122
    b += 16;
  }
Scott LaVarnway's avatar
Scott LaVarnway committed
123

John Koleszar's avatar
John Koleszar committed
124
  return (cur_mb->bmi + b - 4)->as_mv.first.as_int;
Scott LaVarnway's avatar
Scott LaVarnway committed
125
}
126

John Koleszar's avatar
John Koleszar committed
127 128 129 130
static int above_block_second_mv(const MODE_INFO *cur_mb, int b, int mi_stride) {
  if (!(b >> 2)) {
    /* On top edge, get from MB above us */
    cur_mb -= mi_stride;
131

John Koleszar's avatar
John Koleszar committed
132
    if (cur_mb->mbmi.mode != SPLITMV)
133
      return cur_mb->mbmi.second_ref_frame ? cur_mb->mbmi.mv[1].as_int : cur_mb->mbmi.mv[0].as_int;
John Koleszar's avatar
John Koleszar committed
134 135
    b += 16;
  }
136

John Koleszar's avatar
John Koleszar committed
137
  return cur_mb->mbmi.second_ref_frame ? (cur_mb->bmi + b - 4)->as_mv.second.as_int : (cur_mb->bmi + b - 4)->as_mv.first.as_int;
138 139
}

John Koleszar's avatar
John Koleszar committed
140 141 142 143
static B_PREDICTION_MODE left_block_mode(const MODE_INFO *cur_mb, int b) {
  if (!(b & 3)) {
    /* On L edge, get from MB to left of us */
    --cur_mb;
144 145 146 147 148 149 150 151 152

    if (cur_mb->mbmi.mode < I8X8_PRED) {
      return pred_mode_conv(cur_mb->mbmi.mode);
    } else if (cur_mb->mbmi.mode == I8X8_PRED) {
      return pred_mode_conv((cur_mb->bmi + 3 + b)->as_mode.first);
    } else if (cur_mb->mbmi.mode == B_PRED) {
      return ((cur_mb->bmi + 3 + b)->as_mode.first);
    } else {
      return B_DC_PRED;
Scott LaVarnway's avatar
Scott LaVarnway committed
153
    }
John Koleszar's avatar
John Koleszar committed
154 155
  }
  return (cur_mb->bmi + b - 1)->as_mode.first;
Scott LaVarnway's avatar
Scott LaVarnway committed
156 157
}

158 159
static B_PREDICTION_MODE above_block_mode(const MODE_INFO *cur_mb,
                                          int b, int mi_stride) {
John Koleszar's avatar
John Koleszar committed
160 161 162 163
  if (!(b >> 2)) {
    /* On top edge, get from MB above us */
    cur_mb -= mi_stride;

164 165 166 167 168 169 170 171
    if (cur_mb->mbmi.mode < I8X8_PRED) {
      return pred_mode_conv(cur_mb->mbmi.mode);
    } else if (cur_mb->mbmi.mode == I8X8_PRED) {
      return pred_mode_conv((cur_mb->bmi + 12 + b)->as_mode.first);
    } else if (cur_mb->mbmi.mode == B_PRED) {
      return ((cur_mb->bmi + 12 + b)->as_mode.first);
    } else {
      return B_DC_PRED;
Scott LaVarnway's avatar
Scott LaVarnway committed
172
    }
John Koleszar's avatar
John Koleszar committed
173
  }
Scott LaVarnway's avatar
Scott LaVarnway committed
174

John Koleszar's avatar
John Koleszar committed
175
  return (cur_mb->bmi + b - 4)->as_mode.first;
Scott LaVarnway's avatar
Scott LaVarnway committed
176
}
177

John Koleszar's avatar
John Koleszar committed
178
#endif