| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * VP9 compatible video decoder | ||
| 3 | * | ||
| 4 | * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com> | ||
| 5 | * Copyright (C) 2013 Clément Bœsch <u pkh me> | ||
| 6 | * | ||
| 7 | * This file is part of FFmpeg. | ||
| 8 | * | ||
| 9 | * FFmpeg is free software; you can redistribute it and/or | ||
| 10 | * modify it under the terms of the GNU Lesser General Public | ||
| 11 | * License as published by the Free Software Foundation; either | ||
| 12 | * version 2.1 of the License, or (at your option) any later version. | ||
| 13 | * | ||
| 14 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 17 | * Lesser General Public License for more details. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU Lesser General Public | ||
| 20 | * License along with FFmpeg; if not, write to the Free Software | ||
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 22 | */ | ||
| 23 | |||
| 24 | #include "progressframe.h" | ||
| 25 | #include "vp89_rac.h" | ||
| 26 | #include "vp9data.h" | ||
| 27 | #include "vp9dec.h" | ||
| 28 | #include "vpx_rac.h" | ||
| 29 | |||
| 30 | 612314 | static av_always_inline void clamp_mv(VP9mv *dst, const VP9mv *src, | |
| 31 | VP9TileData *td) | ||
| 32 | { | ||
| 33 | 612314 | dst->x = av_clip(src->x, td->min_mv.x, td->max_mv.x); | |
| 34 | 612314 | dst->y = av_clip(src->y, td->min_mv.y, td->max_mv.y); | |
| 35 | 612314 | } | |
| 36 | |||
| 37 | 631778 | static void find_ref_mvs(VP9TileData *td, | |
| 38 | VP9mv *pmv, int ref, int z, int idx, int sb) | ||
| 39 | { | ||
| 40 | static const int8_t mv_ref_blk_off[N_BS_SIZES][8][2] = { | ||
| 41 | [BS_64x64] = { { 3, -1 }, { -1, 3 }, { 4, -1 }, { -1, 4 }, | ||
| 42 | { -1, -1 }, { 0, -1 }, { -1, 0 }, { 6, -1 } }, | ||
| 43 | [BS_64x32] = { { 0, -1 }, { -1, 0 }, { 4, -1 }, { -1, 2 }, | ||
| 44 | { -1, -1 }, { 0, -3 }, { -3, 0 }, { 2, -1 } }, | ||
| 45 | [BS_32x64] = { { -1, 0 }, { 0, -1 }, { -1, 4 }, { 2, -1 }, | ||
| 46 | { -1, -1 }, { -3, 0 }, { 0, -3 }, { -1, 2 } }, | ||
| 47 | [BS_32x32] = { { 1, -1 }, { -1, 1 }, { 2, -1 }, { -1, 2 }, | ||
| 48 | { -1, -1 }, { 0, -3 }, { -3, 0 }, { -3, -3 } }, | ||
| 49 | [BS_32x16] = { { 0, -1 }, { -1, 0 }, { 2, -1 }, { -1, -1 }, | ||
| 50 | { -1, 1 }, { 0, -3 }, { -3, 0 }, { -3, -3 } }, | ||
| 51 | [BS_16x32] = { { -1, 0 }, { 0, -1 }, { -1, 2 }, { -1, -1 }, | ||
| 52 | { 1, -1 }, { -3, 0 }, { 0, -3 }, { -3, -3 } }, | ||
| 53 | [BS_16x16] = { { 0, -1 }, { -1, 0 }, { 1, -1 }, { -1, 1 }, | ||
| 54 | { -1, -1 }, { 0, -3 }, { -3, 0 }, { -3, -3 } }, | ||
| 55 | [BS_16x8] = { { 0, -1 }, { -1, 0 }, { 1, -1 }, { -1, -1 }, | ||
| 56 | { 0, -2 }, { -2, 0 }, { -2, -1 }, { -1, -2 } }, | ||
| 57 | [BS_8x16] = { { -1, 0 }, { 0, -1 }, { -1, 1 }, { -1, -1 }, | ||
| 58 | { -2, 0 }, { 0, -2 }, { -1, -2 }, { -2, -1 } }, | ||
| 59 | [BS_8x8] = { { 0, -1 }, { -1, 0 }, { -1, -1 }, { 0, -2 }, | ||
| 60 | { -2, 0 }, { -1, -2 }, { -2, -1 }, { -2, -2 } }, | ||
| 61 | [BS_8x4] = { { 0, -1 }, { -1, 0 }, { -1, -1 }, { 0, -2 }, | ||
| 62 | { -2, 0 }, { -1, -2 }, { -2, -1 }, { -2, -2 } }, | ||
| 63 | [BS_4x8] = { { 0, -1 }, { -1, 0 }, { -1, -1 }, { 0, -2 }, | ||
| 64 | { -2, 0 }, { -1, -2 }, { -2, -1 }, { -2, -2 } }, | ||
| 65 | [BS_4x4] = { { 0, -1 }, { -1, 0 }, { -1, -1 }, { 0, -2 }, | ||
| 66 | { -2, 0 }, { -1, -2 }, { -2, -1 }, { -2, -2 } }, | ||
| 67 | }; | ||
| 68 | 631778 | const VP9Context *s = td->s; | |
| 69 | 631778 | VP9Block *b = td->b; | |
| 70 | 631778 | int row = td->row, col = td->col, row7 = td->row7; | |
| 71 | 631778 | const int8_t (*p)[2] = mv_ref_blk_off[b->bs]; | |
| 72 | #define INVALID_MV 0x80008000U | ||
| 73 | 631778 | uint32_t mem = INVALID_MV, mem_sub8x8 = INVALID_MV; | |
| 74 | int i; | ||
| 75 | |||
| 76 | #define RETURN_DIRECT_MV(mv) \ | ||
| 77 | do { \ | ||
| 78 | uint32_t m = AV_RN32A(&mv); \ | ||
| 79 | if (!idx) { \ | ||
| 80 | AV_WN32A(pmv, m); \ | ||
| 81 | return; \ | ||
| 82 | } else if (mem == INVALID_MV) { \ | ||
| 83 | mem = m; \ | ||
| 84 | } else if (m != mem) { \ | ||
| 85 | AV_WN32A(pmv, m); \ | ||
| 86 | return; \ | ||
| 87 | } \ | ||
| 88 | } while (0) | ||
| 89 | |||
| 90 |
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631778 | if (sb >= 0) { |
| 91 |
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72459 | if (sb == 2 || sb == 1) { |
| 92 |
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33729 | RETURN_DIRECT_MV(b->mv[0][z]); |
| 93 |
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38730 | } else if (sb == 3) { |
| 94 |
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10151 | RETURN_DIRECT_MV(b->mv[2][z]); |
| 95 |
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3707 | RETURN_DIRECT_MV(b->mv[1][z]); |
| 96 |
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607 | RETURN_DIRECT_MV(b->mv[0][z]); |
| 97 | } | ||
| 98 | |||
| 99 | #define RETURN_MV(mv) \ | ||
| 100 | do { \ | ||
| 101 | if (sb > 0) { \ | ||
| 102 | VP9mv tmp; \ | ||
| 103 | uint32_t m; \ | ||
| 104 | av_assert2(idx == 1); \ | ||
| 105 | av_assert2(mem != INVALID_MV); \ | ||
| 106 | if (mem_sub8x8 == INVALID_MV) { \ | ||
| 107 | clamp_mv(&tmp, &mv, td); \ | ||
| 108 | m = AV_RN32A(&tmp); \ | ||
| 109 | if (m != mem) { \ | ||
| 110 | AV_WN32A(pmv, m); \ | ||
| 111 | return; \ | ||
| 112 | } \ | ||
| 113 | mem_sub8x8 = AV_RN32A(&mv); \ | ||
| 114 | } else if (mem_sub8x8 != AV_RN32A(&mv)) { \ | ||
| 115 | clamp_mv(&tmp, &mv, td); \ | ||
| 116 | m = AV_RN32A(&tmp); \ | ||
| 117 | if (m != mem) { \ | ||
| 118 | AV_WN32A(pmv, m); \ | ||
| 119 | } else { \ | ||
| 120 | /* BUG I'm pretty sure this isn't the intention */ \ | ||
| 121 | AV_WN32A(pmv, 0); \ | ||
| 122 | } \ | ||
| 123 | return; \ | ||
| 124 | } \ | ||
| 125 | } else { \ | ||
| 126 | uint32_t m = AV_RN32A(&mv); \ | ||
| 127 | if (!idx) { \ | ||
| 128 | clamp_mv(pmv, &mv, td); \ | ||
| 129 | return; \ | ||
| 130 | } else if (mem == INVALID_MV) { \ | ||
| 131 | mem = m; \ | ||
| 132 | } else if (m != mem) { \ | ||
| 133 | clamp_mv(pmv, &mv, td); \ | ||
| 134 | return; \ | ||
| 135 | } \ | ||
| 136 | } \ | ||
| 137 | } while (0) | ||
| 138 | |||
| 139 |
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48093 | if (row > 0) { |
| 140 | 37734 | VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[(row - 1) * s->sb_cols * 8 + col]; | |
| 141 |
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37734 | if (mv->ref[0] == ref) |
| 142 |
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33061 | RETURN_MV(s->above_mv_ctx[2 * col + (sb & 1)][0]); |
| 143 |
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4673 | else if (mv->ref[1] == ref) |
| 144 |
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701 | RETURN_MV(s->above_mv_ctx[2 * col + (sb & 1)][1]); |
| 145 | } | ||
| 146 |
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26055 | if (col > td->tile_col_start) { |
| 147 | 25391 | VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[row * s->sb_cols * 8 + col - 1]; | |
| 148 |
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25391 | if (mv->ref[0] == ref) |
| 149 |
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22874 | RETURN_MV(td->left_mv_ctx[2 * row7 + (sb >> 1)][0]); |
| 150 |
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2517 | else if (mv->ref[1] == ref) |
| 151 |
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376 | RETURN_MV(td->left_mv_ctx[2 * row7 + (sb >> 1)][1]); |
| 152 | } | ||
| 153 | 5680 | i = 2; | |
| 154 | } else { | ||
| 155 | 559319 | i = 0; | |
| 156 | } | ||
| 157 | |||
| 158 | // previously coded MVs in this neighborhood, using same reference frame | ||
| 159 |
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989984 | for (; i < 8; i++) { |
| 160 | 967040 | int c = p[i][0] + col, r = p[i][1] + row; | |
| 161 | |||
| 162 |
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967040 | if (c >= td->tile_col_start && c < s->cols && |
| 163 |
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881260 | r >= 0 && r < s->rows) { |
| 164 | 881238 | VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[r * s->sb_cols * 8 + c]; | |
| 165 | |||
| 166 |
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881238 | if (mv->ref[0] == ref) |
| 167 |
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651578 | RETURN_MV(mv->mv[0]); |
| 168 |
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229660 | else if (mv->ref[1] == ref) |
| 169 |
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36406 | RETURN_MV(mv->mv[1]); |
| 170 | } | ||
| 171 | } | ||
| 172 | |||
| 173 | // MV at this position in previous frame, using same reference frame | ||
| 174 |
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22944 | if (s->s.h.use_last_frame_mvs) { |
| 175 | 21888 | VP9mvrefPair *mv = &s->s.frames[REF_FRAME_MVPAIR].mv[row * s->sb_cols * 8 + col]; | |
| 176 | |||
| 177 |
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21888 | if (!s->s.frames[REF_FRAME_MVPAIR].uses_2pass) |
| 178 | 21888 | ff_progress_frame_await(&s->s.frames[REF_FRAME_MVPAIR].tf, row >> 3); | |
| 179 |
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21888 | if (mv->ref[0] == ref) |
| 180 |
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9555 | RETURN_MV(mv->mv[0]); |
| 181 |
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12333 | else if (mv->ref[1] == ref) |
| 182 |
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303 | RETURN_MV(mv->mv[1]); |
| 183 | } | ||
| 184 | |||
| 185 | #define RETURN_SCALE_MV(mv, scale) \ | ||
| 186 | do { \ | ||
| 187 | if (scale) { \ | ||
| 188 | VP9mv mv_temp = { -mv.x, -mv.y }; \ | ||
| 189 | RETURN_MV(mv_temp); \ | ||
| 190 | } else { \ | ||
| 191 | RETURN_MV(mv); \ | ||
| 192 | } \ | ||
| 193 | } while (0) | ||
| 194 | |||
| 195 | // previously coded MVs in this neighborhood, using different reference frame | ||
| 196 |
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41438 | for (i = 0; i < 8; i++) { |
| 197 | 38573 | int c = p[i][0] + col, r = p[i][1] + row; | |
| 198 | |||
| 199 |
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38573 | if (c >= td->tile_col_start && c < s->cols && r >= 0 && r < s->rows) { |
| 200 | 23818 | VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[r * s->sb_cols * 8 + c]; | |
| 201 | |||
| 202 |
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23818 | if (mv->ref[0] != ref && mv->ref[0] >= 0) |
| 203 |
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12466 | RETURN_SCALE_MV(mv->mv[0], |
| 204 | s->s.h.signbias[mv->ref[0]] != s->s.h.signbias[ref]); | ||
| 205 |
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13104 | if (mv->ref[1] != ref && mv->ref[1] >= 0 && |
| 206 | // BUG - libvpx has this condition regardless of whether | ||
| 207 | // we used the first ref MV and pre-scaling | ||
| 208 |
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143 | AV_RN32A(&mv->mv[0]) != AV_RN32A(&mv->mv[1])) { |
| 209 |
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93 | RETURN_SCALE_MV(mv->mv[1], s->s.h.signbias[mv->ref[1]] != s->s.h.signbias[ref]); |
| 210 | } | ||
| 211 | } | ||
| 212 | } | ||
| 213 | |||
| 214 | // MV at this position in previous frame, using different reference frame | ||
| 215 |
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2865 | if (s->s.h.use_last_frame_mvs) { |
| 216 | 2662 | VP9mvrefPair *mv = &s->s.frames[REF_FRAME_MVPAIR].mv[row * s->sb_cols * 8 + col]; | |
| 217 | |||
| 218 | // no need to await_progress, because we already did that above | ||
| 219 |
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2662 | if (mv->ref[0] != ref && mv->ref[0] >= 0) |
| 220 |
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1499 | RETURN_SCALE_MV(mv->mv[0], s->s.h.signbias[mv->ref[0]] != s->s.h.signbias[ref]); |
| 221 |
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1242 | if (mv->ref[1] != ref && mv->ref[1] >= 0 && |
| 222 | // BUG - libvpx has this condition regardless of whether | ||
| 223 | // we used the first ref MV and pre-scaling | ||
| 224 |
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6 | AV_RN32A(&mv->mv[0]) != AV_RN32A(&mv->mv[1])) { |
| 225 |
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6 | RETURN_SCALE_MV(mv->mv[1], s->s.h.signbias[mv->ref[1]] != s->s.h.signbias[ref]); |
| 226 | } | ||
| 227 | } | ||
| 228 | |||
| 229 | 1440 | AV_ZERO32(pmv); | |
| 230 | 1440 | clamp_mv(pmv, pmv, td); | |
| 231 | #undef INVALID_MV | ||
| 232 | #undef RETURN_MV | ||
| 233 | #undef RETURN_SCALE_MV | ||
| 234 | } | ||
| 235 | |||
| 236 | 419551 | static av_always_inline int read_mv_component(VP9TileData *td, int idx, int hp) | |
| 237 | { | ||
| 238 | 419551 | const VP9Context *s = td->s; | |
| 239 | 419551 | int bit, sign = vpx_rac_get_prob(td->c, s->prob.p.mv_comp[idx].sign); | |
| 240 | 419551 | int n, c = vp89_rac_get_tree(td->c, ff_vp9_mv_class_tree, | |
| 241 | 419551 | s->prob.p.mv_comp[idx].classes); | |
| 242 | |||
| 243 | 419551 | td->counts.mv_comp[idx].sign[sign]++; | |
| 244 | 419551 | td->counts.mv_comp[idx].classes[c]++; | |
| 245 |
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419551 | if (c) { |
| 246 | int m; | ||
| 247 | |||
| 248 |
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155759 | for (n = 0, m = 0; m < c; m++) { |
| 249 | 102599 | bit = vpx_rac_get_prob(td->c, s->prob.p.mv_comp[idx].bits[m]); | |
| 250 | 102599 | n |= bit << m; | |
| 251 | 102599 | td->counts.mv_comp[idx].bits[m][bit]++; | |
| 252 | } | ||
| 253 | 53160 | n <<= 3; | |
| 254 | 53160 | bit = vp89_rac_get_tree(td->c, ff_vp9_mv_fp_tree, | |
| 255 | 53160 | s->prob.p.mv_comp[idx].fp); | |
| 256 | 53160 | n |= bit << 1; | |
| 257 | 53160 | td->counts.mv_comp[idx].fp[bit]++; | |
| 258 |
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53160 | if (hp) { |
| 259 | 28612 | bit = vpx_rac_get_prob(td->c, s->prob.p.mv_comp[idx].hp); | |
| 260 | 28612 | td->counts.mv_comp[idx].hp[bit]++; | |
| 261 | 28612 | n |= bit; | |
| 262 | } else { | ||
| 263 | 24548 | n |= 1; | |
| 264 | // bug in libvpx - we count for bw entropy purposes even if the | ||
| 265 | // bit wasn't coded | ||
| 266 | 24548 | td->counts.mv_comp[idx].hp[1]++; | |
| 267 | } | ||
| 268 | 53160 | n += 8 << c; | |
| 269 | } else { | ||
| 270 | 366391 | n = vpx_rac_get_prob(td->c, s->prob.p.mv_comp[idx].class0); | |
| 271 | 366391 | td->counts.mv_comp[idx].class0[n]++; | |
| 272 | 366391 | bit = vp89_rac_get_tree(td->c, ff_vp9_mv_fp_tree, | |
| 273 | 366391 | s->prob.p.mv_comp[idx].class0_fp[n]); | |
| 274 | 366391 | td->counts.mv_comp[idx].class0_fp[n][bit]++; | |
| 275 | 366391 | n = (n << 3) | (bit << 1); | |
| 276 |
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366391 | if (hp) { |
| 277 | 191446 | bit = vpx_rac_get_prob(td->c, s->prob.p.mv_comp[idx].class0_hp); | |
| 278 | 191446 | td->counts.mv_comp[idx].class0_hp[bit]++; | |
| 279 | 191446 | n |= bit; | |
| 280 | } else { | ||
| 281 | 174945 | n |= 1; | |
| 282 | // bug in libvpx - we count for bw entropy purposes even if the | ||
| 283 | // bit wasn't coded | ||
| 284 | 174945 | td->counts.mv_comp[idx].class0_hp[1]++; | |
| 285 | } | ||
| 286 | } | ||
| 287 | |||
| 288 |
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419551 | return sign ? -(n + 1) : (n + 1); |
| 289 | } | ||
| 290 | |||
| 291 | 614512 | void ff_vp9_fill_mv(VP9TileData *td, VP9mv *mv, int mode, int sb) | |
| 292 | { | ||
| 293 | 614512 | const VP9Context *s = td->s; | |
| 294 | 614512 | VP9Block *b = td->b; | |
| 295 | |||
| 296 |
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614512 | if (mode == ZEROMV) { |
| 297 | 10953 | AV_ZERO32(&mv[0]); | |
| 298 | 10953 | AV_ZERO32(&mv[1]); | |
| 299 | } else { | ||
| 300 | int hp; | ||
| 301 | |||
| 302 | // FIXME cache this value and reuse for other subblocks | ||
| 303 |
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603559 | find_ref_mvs(td, &mv[0], b->ref[0], 0, mode == NEARMV, |
| 304 | mode == NEWMV ? -1 : sb); | ||
| 305 | // FIXME maybe move this code into find_ref_mvs() | ||
| 306 |
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603559 | if ((mode == NEWMV || sb == -1) && |
| 307 |
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532573 | !(hp = s->s.h.highprecisionmvs && |
| 308 |
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532573 | abs(mv[0].x) < 64 && abs(mv[0].y) < 64)) { |
| 309 |
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246572 | if (mv[0].y & 1) { |
| 310 |
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1756 | if (mv[0].y < 0) |
| 311 | 740 | mv[0].y++; | |
| 312 | else | ||
| 313 | 1016 | mv[0].y--; | |
| 314 | } | ||
| 315 |
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246572 | if (mv[0].x & 1) { |
| 316 |
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2217 | if (mv[0].x < 0) |
| 317 | 777 | mv[0].x++; | |
| 318 | else | ||
| 319 | 1440 | mv[0].x--; | |
| 320 | } | ||
| 321 | } | ||
| 322 |
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603559 | if (mode == NEWMV) { |
| 323 | 534592 | enum MVJoint j = vp89_rac_get_tree(td->c, ff_vp9_mv_joint_tree, | |
| 324 | 267296 | s->prob.p.mv_joint); | |
| 325 | |||
| 326 | 267296 | td->counts.mv_joint[j]++; | |
| 327 |
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267296 | if (j >= MV_JOINT_V) |
| 328 | 221232 | mv[0].y += read_mv_component(td, 0, hp); | |
| 329 |
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267296 | if (j & 1) |
| 330 | 177759 | mv[0].x += read_mv_component(td, 1, hp); | |
| 331 | } | ||
| 332 | |||
| 333 |
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603559 | if (b->comp) { |
| 334 | // FIXME cache this value and reuse for other subblocks | ||
| 335 |
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28219 | find_ref_mvs(td, &mv[1], b->ref[1], 1, mode == NEARMV, |
| 336 | mode == NEWMV ? -1 : sb); | ||
| 337 |
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28219 | if ((mode == NEWMV || sb == -1) && |
| 338 |
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26746 | !(hp = s->s.h.highprecisionmvs && |
| 339 |
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26746 | abs(mv[1].x) < 64 && abs(mv[1].y) < 64)) { |
| 340 |
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17991 | if (mv[1].y & 1) { |
| 341 |
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84 | if (mv[1].y < 0) |
| 342 | 30 | mv[1].y++; | |
| 343 | else | ||
| 344 | 54 | mv[1].y--; | |
| 345 | } | ||
| 346 |
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17991 | if (mv[1].x & 1) { |
| 347 |
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69 | if (mv[1].x < 0) |
| 348 | 59 | mv[1].x++; | |
| 349 | else | ||
| 350 | 10 | mv[1].x--; | |
| 351 | } | ||
| 352 | } | ||
| 353 |
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28219 | if (mode == NEWMV) { |
| 354 | 26876 | enum MVJoint j = vp89_rac_get_tree(td->c, ff_vp9_mv_joint_tree, | |
| 355 | 13438 | s->prob.p.mv_joint); | |
| 356 | |||
| 357 | 13438 | td->counts.mv_joint[j]++; | |
| 358 |
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13438 | if (j >= MV_JOINT_V) |
| 359 | 10960 | mv[1].y += read_mv_component(td, 0, hp); | |
| 360 |
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13438 | if (j & 1) |
| 361 | 9600 | mv[1].x += read_mv_component(td, 1, hp); | |
| 362 | } | ||
| 363 | } | ||
| 364 | } | ||
| 365 | 614512 | } | |
| 366 |