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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /media/ffvpx/libavcodec/vp9block.c | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | media/ffvpx/libavcodec/vp9block.c | 1457 |
1 files changed, 1457 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/vp9block.c b/media/ffvpx/libavcodec/vp9block.c new file mode 100644 index 0000000000..5743f048cc --- /dev/null +++ b/media/ffvpx/libavcodec/vp9block.c @@ -0,0 +1,1457 @@ +/* + * VP9 compatible video decoder + * + * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com> + * Copyright (C) 2013 Clément Bœsch <u pkh me> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/avassert.h" + +#include "threadframe.h" +#include "vp89_rac.h" +#include "vp9.h" +#include "vp9data.h" +#include "vp9dec.h" +#include "vpx_rac.h" + +static av_always_inline void setctx_2d(uint8_t *ptr, int w, int h, + ptrdiff_t stride, int v) +{ + switch (w) { + case 1: + do { + *ptr = v; + ptr += stride; + } while (--h); + break; + case 2: { + int v16 = v * 0x0101; + do { + AV_WN16A(ptr, v16); + ptr += stride; + } while (--h); + break; + } + case 4: { + uint32_t v32 = v * 0x01010101; + do { + AV_WN32A(ptr, v32); + ptr += stride; + } while (--h); + break; + } + case 8: { +#if HAVE_FAST_64BIT + uint64_t v64 = v * 0x0101010101010101ULL; + do { + AV_WN64A(ptr, v64); + ptr += stride; + } while (--h); +#else + uint32_t v32 = v * 0x01010101; + do { + AV_WN32A(ptr, v32); + AV_WN32A(ptr + 4, v32); + ptr += stride; + } while (--h); +#endif + break; + } + } +} + +static void decode_mode(VP9TileData *td) +{ + static const uint8_t left_ctx[N_BS_SIZES] = { + 0x0, 0x8, 0x0, 0x8, 0xc, 0x8, 0xc, 0xe, 0xc, 0xe, 0xf, 0xe, 0xf + }; + static const uint8_t above_ctx[N_BS_SIZES] = { + 0x0, 0x0, 0x8, 0x8, 0x8, 0xc, 0xc, 0xc, 0xe, 0xe, 0xe, 0xf, 0xf + }; + static const uint8_t max_tx_for_bl_bp[N_BS_SIZES] = { + TX_32X32, TX_32X32, TX_32X32, TX_32X32, TX_16X16, TX_16X16, + TX_16X16, TX_8X8, TX_8X8, TX_8X8, TX_4X4, TX_4X4, TX_4X4 + }; + const VP9Context *s = td->s; + VP9Block *b = td->b; + int row = td->row, col = td->col, row7 = td->row7; + enum TxfmMode max_tx = max_tx_for_bl_bp[b->bs]; + int bw4 = ff_vp9_bwh_tab[1][b->bs][0], w4 = FFMIN(s->cols - col, bw4); + int bh4 = ff_vp9_bwh_tab[1][b->bs][1], h4 = FFMIN(s->rows - row, bh4), y; + int have_a = row > 0, have_l = col > td->tile_col_start; + int vref, filter_id; + + if (!s->s.h.segmentation.enabled) { + b->seg_id = 0; + } else if (s->s.h.keyframe || s->s.h.intraonly) { + b->seg_id = !s->s.h.segmentation.update_map ? 0 : + vp89_rac_get_tree(td->c, ff_vp9_segmentation_tree, + s->s.h.segmentation.prob); + } else if (!s->s.h.segmentation.update_map || + (s->s.h.segmentation.temporal && + vpx_rac_get_prob_branchy(td->c, + s->s.h.segmentation.pred_prob[s->above_segpred_ctx[col] + + td->left_segpred_ctx[row7]]))) { + if (!s->s.h.errorres && s->s.frames[REF_FRAME_SEGMAP].segmentation_map) { + int pred = 8, x; + uint8_t *refsegmap = s->s.frames[REF_FRAME_SEGMAP].segmentation_map; + + if (!s->s.frames[REF_FRAME_SEGMAP].uses_2pass) + ff_thread_await_progress(&s->s.frames[REF_FRAME_SEGMAP].tf, row >> 3, 0); + for (y = 0; y < h4; y++) { + int idx_base = (y + row) * 8 * s->sb_cols + col; + for (x = 0; x < w4; x++) + pred = FFMIN(pred, refsegmap[idx_base + x]); + } + av_assert1(pred < 8); + b->seg_id = pred; + } else { + b->seg_id = 0; + } + + memset(&s->above_segpred_ctx[col], 1, w4); + memset(&td->left_segpred_ctx[row7], 1, h4); + } else { + b->seg_id = vp89_rac_get_tree(td->c, ff_vp9_segmentation_tree, + s->s.h.segmentation.prob); + + memset(&s->above_segpred_ctx[col], 0, w4); + memset(&td->left_segpred_ctx[row7], 0, h4); + } + if (s->s.h.segmentation.enabled && + (s->s.h.segmentation.update_map || s->s.h.keyframe || s->s.h.intraonly)) { + setctx_2d(&s->s.frames[CUR_FRAME].segmentation_map[row * 8 * s->sb_cols + col], + bw4, bh4, 8 * s->sb_cols, b->seg_id); + } + + b->skip = s->s.h.segmentation.enabled && + s->s.h.segmentation.feat[b->seg_id].skip_enabled; + if (!b->skip) { + int c = td->left_skip_ctx[row7] + s->above_skip_ctx[col]; + b->skip = vpx_rac_get_prob(td->c, s->prob.p.skip[c]); + td->counts.skip[c][b->skip]++; + } + + if (s->s.h.keyframe || s->s.h.intraonly) { + b->intra = 1; + } else if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].ref_enabled) { + b->intra = !s->s.h.segmentation.feat[b->seg_id].ref_val; + } else { + int c, bit; + + if (have_a && have_l) { + c = s->above_intra_ctx[col] + td->left_intra_ctx[row7]; + c += (c == 2); + } else { + c = have_a ? 2 * s->above_intra_ctx[col] : + have_l ? 2 * td->left_intra_ctx[row7] : 0; + } + bit = vpx_rac_get_prob(td->c, s->prob.p.intra[c]); + td->counts.intra[c][bit]++; + b->intra = !bit; + } + + if ((b->intra || !b->skip) && s->s.h.txfmmode == TX_SWITCHABLE) { + int c; + if (have_a) { + if (have_l) { + c = (s->above_skip_ctx[col] ? max_tx : + s->above_txfm_ctx[col]) + + (td->left_skip_ctx[row7] ? max_tx : + td->left_txfm_ctx[row7]) > max_tx; + } else { + c = s->above_skip_ctx[col] ? 1 : + (s->above_txfm_ctx[col] * 2 > max_tx); + } + } else if (have_l) { + c = td->left_skip_ctx[row7] ? 1 : + (td->left_txfm_ctx[row7] * 2 > max_tx); + } else { + c = 1; + } + switch (max_tx) { + case TX_32X32: + b->tx = vpx_rac_get_prob(td->c, s->prob.p.tx32p[c][0]); + if (b->tx) { + b->tx += vpx_rac_get_prob(td->c, s->prob.p.tx32p[c][1]); + if (b->tx == 2) + b->tx += vpx_rac_get_prob(td->c, s->prob.p.tx32p[c][2]); + } + td->counts.tx32p[c][b->tx]++; + break; + case TX_16X16: + b->tx = vpx_rac_get_prob(td->c, s->prob.p.tx16p[c][0]); + if (b->tx) + b->tx += vpx_rac_get_prob(td->c, s->prob.p.tx16p[c][1]); + td->counts.tx16p[c][b->tx]++; + break; + case TX_8X8: + b->tx = vpx_rac_get_prob(td->c, s->prob.p.tx8p[c]); + td->counts.tx8p[c][b->tx]++; + break; + case TX_4X4: + b->tx = TX_4X4; + break; + } + } else { + b->tx = FFMIN(max_tx, s->s.h.txfmmode); + } + + if (s->s.h.keyframe || s->s.h.intraonly) { + uint8_t *a = &s->above_mode_ctx[col * 2]; + uint8_t *l = &td->left_mode_ctx[(row7) << 1]; + + b->comp = 0; + if (b->bs > BS_8x8) { + // FIXME the memory storage intermediates here aren't really + // necessary, they're just there to make the code slightly + // simpler for now + b->mode[0] = + a[0] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + ff_vp9_default_kf_ymode_probs[a[0]][l[0]]); + if (b->bs != BS_8x4) { + b->mode[1] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + ff_vp9_default_kf_ymode_probs[a[1]][b->mode[0]]); + l[0] = + a[1] = b->mode[1]; + } else { + l[0] = + a[1] = + b->mode[1] = b->mode[0]; + } + if (b->bs != BS_4x8) { + b->mode[2] = + a[0] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + ff_vp9_default_kf_ymode_probs[a[0]][l[1]]); + if (b->bs != BS_8x4) { + b->mode[3] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + ff_vp9_default_kf_ymode_probs[a[1]][b->mode[2]]); + l[1] = + a[1] = b->mode[3]; + } else { + l[1] = + a[1] = + b->mode[3] = b->mode[2]; + } + } else { + b->mode[2] = b->mode[0]; + l[1] = + a[1] = + b->mode[3] = b->mode[1]; + } + } else { + b->mode[0] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + ff_vp9_default_kf_ymode_probs[*a][*l]); + b->mode[3] = + b->mode[2] = + b->mode[1] = b->mode[0]; + // FIXME this can probably be optimized + memset(a, b->mode[0], ff_vp9_bwh_tab[0][b->bs][0]); + memset(l, b->mode[0], ff_vp9_bwh_tab[0][b->bs][1]); + } + b->uvmode = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + ff_vp9_default_kf_uvmode_probs[b->mode[3]]); + } else if (b->intra) { + b->comp = 0; + if (b->bs > BS_8x8) { + b->mode[0] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + s->prob.p.y_mode[0]); + td->counts.y_mode[0][b->mode[0]]++; + if (b->bs != BS_8x4) { + b->mode[1] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + s->prob.p.y_mode[0]); + td->counts.y_mode[0][b->mode[1]]++; + } else { + b->mode[1] = b->mode[0]; + } + if (b->bs != BS_4x8) { + b->mode[2] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + s->prob.p.y_mode[0]); + td->counts.y_mode[0][b->mode[2]]++; + if (b->bs != BS_8x4) { + b->mode[3] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + s->prob.p.y_mode[0]); + td->counts.y_mode[0][b->mode[3]]++; + } else { + b->mode[3] = b->mode[2]; + } + } else { + b->mode[2] = b->mode[0]; + b->mode[3] = b->mode[1]; + } + } else { + static const uint8_t size_group[10] = { + 3, 3, 3, 3, 2, 2, 2, 1, 1, 1 + }; + int sz = size_group[b->bs]; + + b->mode[0] = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + s->prob.p.y_mode[sz]); + b->mode[1] = + b->mode[2] = + b->mode[3] = b->mode[0]; + td->counts.y_mode[sz][b->mode[3]]++; + } + b->uvmode = vp89_rac_get_tree(td->c, ff_vp9_intramode_tree, + s->prob.p.uv_mode[b->mode[3]]); + td->counts.uv_mode[b->mode[3]][b->uvmode]++; + } else { + static const uint8_t inter_mode_ctx_lut[14][14] = { + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 }, + { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 3 }, + { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 3 }, + { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 0, 3 }, + { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 4 }, + }; + + if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].ref_enabled) { + av_assert2(s->s.h.segmentation.feat[b->seg_id].ref_val != 0); + b->comp = 0; + b->ref[0] = s->s.h.segmentation.feat[b->seg_id].ref_val - 1; + } else { + // read comp_pred flag + if (s->s.h.comppredmode != PRED_SWITCHABLE) { + b->comp = s->s.h.comppredmode == PRED_COMPREF; + } else { + int c; + + // FIXME add intra as ref=0xff (or -1) to make these easier? + if (have_a) { + if (have_l) { + if (s->above_comp_ctx[col] && td->left_comp_ctx[row7]) { + c = 4; + } else if (s->above_comp_ctx[col]) { + c = 2 + (td->left_intra_ctx[row7] || + td->left_ref_ctx[row7] == s->s.h.fixcompref); + } else if (td->left_comp_ctx[row7]) { + c = 2 + (s->above_intra_ctx[col] || + s->above_ref_ctx[col] == s->s.h.fixcompref); + } else { + c = (!s->above_intra_ctx[col] && + s->above_ref_ctx[col] == s->s.h.fixcompref) ^ + (!td->left_intra_ctx[row7] && + td->left_ref_ctx[row & 7] == s->s.h.fixcompref); + } + } else { + c = s->above_comp_ctx[col] ? 3 : + (!s->above_intra_ctx[col] && s->above_ref_ctx[col] == s->s.h.fixcompref); + } + } else if (have_l) { + c = td->left_comp_ctx[row7] ? 3 : + (!td->left_intra_ctx[row7] && td->left_ref_ctx[row7] == s->s.h.fixcompref); + } else { + c = 1; + } + b->comp = vpx_rac_get_prob(td->c, s->prob.p.comp[c]); + td->counts.comp[c][b->comp]++; + } + + // read actual references + // FIXME probably cache a few variables here to prevent repetitive + // memory accesses below + if (b->comp) { /* two references */ + int fix_idx = s->s.h.signbias[s->s.h.fixcompref], var_idx = !fix_idx, c, bit; + + b->ref[fix_idx] = s->s.h.fixcompref; + // FIXME can this codeblob be replaced by some sort of LUT? + if (have_a) { + if (have_l) { + if (s->above_intra_ctx[col]) { + if (td->left_intra_ctx[row7]) { + c = 2; + } else { + c = 1 + 2 * (td->left_ref_ctx[row7] != s->s.h.varcompref[1]); + } + } else if (td->left_intra_ctx[row7]) { + c = 1 + 2 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]); + } else { + int refl = td->left_ref_ctx[row7], refa = s->above_ref_ctx[col]; + + if (refl == refa && refa == s->s.h.varcompref[1]) { + c = 0; + } else if (!td->left_comp_ctx[row7] && !s->above_comp_ctx[col]) { + if ((refa == s->s.h.fixcompref && refl == s->s.h.varcompref[0]) || + (refl == s->s.h.fixcompref && refa == s->s.h.varcompref[0])) { + c = 4; + } else { + c = (refa == refl) ? 3 : 1; + } + } else if (!td->left_comp_ctx[row7]) { + if (refa == s->s.h.varcompref[1] && refl != s->s.h.varcompref[1]) { + c = 1; + } else { + c = (refl == s->s.h.varcompref[1] && + refa != s->s.h.varcompref[1]) ? 2 : 4; + } + } else if (!s->above_comp_ctx[col]) { + if (refl == s->s.h.varcompref[1] && refa != s->s.h.varcompref[1]) { + c = 1; + } else { + c = (refa == s->s.h.varcompref[1] && + refl != s->s.h.varcompref[1]) ? 2 : 4; + } + } else { + c = (refl == refa) ? 4 : 2; + } + } + } else { + if (s->above_intra_ctx[col]) { + c = 2; + } else if (s->above_comp_ctx[col]) { + c = 4 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]); + } else { + c = 3 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]); + } + } + } else if (have_l) { + if (td->left_intra_ctx[row7]) { + c = 2; + } else if (td->left_comp_ctx[row7]) { + c = 4 * (td->left_ref_ctx[row7] != s->s.h.varcompref[1]); + } else { + c = 3 * (td->left_ref_ctx[row7] != s->s.h.varcompref[1]); + } + } else { + c = 2; + } + bit = vpx_rac_get_prob(td->c, s->prob.p.comp_ref[c]); + b->ref[var_idx] = s->s.h.varcompref[bit]; + td->counts.comp_ref[c][bit]++; + } else /* single reference */ { + int bit, c; + + if (have_a && !s->above_intra_ctx[col]) { + if (have_l && !td->left_intra_ctx[row7]) { + if (td->left_comp_ctx[row7]) { + if (s->above_comp_ctx[col]) { + c = 1 + (!s->s.h.fixcompref || !td->left_ref_ctx[row7] || + !s->above_ref_ctx[col]); + } else { + c = (3 * !s->above_ref_ctx[col]) + + (!s->s.h.fixcompref || !td->left_ref_ctx[row7]); + } + } else if (s->above_comp_ctx[col]) { + c = (3 * !td->left_ref_ctx[row7]) + + (!s->s.h.fixcompref || !s->above_ref_ctx[col]); + } else { + c = 2 * !td->left_ref_ctx[row7] + 2 * !s->above_ref_ctx[col]; + } + } else if (s->above_intra_ctx[col]) { + c = 2; + } else if (s->above_comp_ctx[col]) { + c = 1 + (!s->s.h.fixcompref || !s->above_ref_ctx[col]); + } else { + c = 4 * (!s->above_ref_ctx[col]); + } + } else if (have_l && !td->left_intra_ctx[row7]) { + if (td->left_intra_ctx[row7]) { + c = 2; + } else if (td->left_comp_ctx[row7]) { + c = 1 + (!s->s.h.fixcompref || !td->left_ref_ctx[row7]); + } else { + c = 4 * (!td->left_ref_ctx[row7]); + } + } else { + c = 2; + } + bit = vpx_rac_get_prob(td->c, s->prob.p.single_ref[c][0]); + td->counts.single_ref[c][0][bit]++; + if (!bit) { + b->ref[0] = 0; + } else { + // FIXME can this codeblob be replaced by some sort of LUT? + if (have_a) { + if (have_l) { + if (td->left_intra_ctx[row7]) { + if (s->above_intra_ctx[col]) { + c = 2; + } else if (s->above_comp_ctx[col]) { + c = 1 + 2 * (s->s.h.fixcompref == 1 || + s->above_ref_ctx[col] == 1); + } else if (!s->above_ref_ctx[col]) { + c = 3; + } else { + c = 4 * (s->above_ref_ctx[col] == 1); + } + } else if (s->above_intra_ctx[col]) { + if (td->left_intra_ctx[row7]) { + c = 2; + } else if (td->left_comp_ctx[row7]) { + c = 1 + 2 * (s->s.h.fixcompref == 1 || + td->left_ref_ctx[row7] == 1); + } else if (!td->left_ref_ctx[row7]) { + c = 3; + } else { + c = 4 * (td->left_ref_ctx[row7] == 1); + } + } else if (s->above_comp_ctx[col]) { + if (td->left_comp_ctx[row7]) { + if (td->left_ref_ctx[row7] == s->above_ref_ctx[col]) { + c = 3 * (s->s.h.fixcompref == 1 || + td->left_ref_ctx[row7] == 1); + } else { + c = 2; + } + } else if (!td->left_ref_ctx[row7]) { + c = 1 + 2 * (s->s.h.fixcompref == 1 || + s->above_ref_ctx[col] == 1); + } else { + c = 3 * (td->left_ref_ctx[row7] == 1) + + (s->s.h.fixcompref == 1 || s->above_ref_ctx[col] == 1); + } + } else if (td->left_comp_ctx[row7]) { + if (!s->above_ref_ctx[col]) { + c = 1 + 2 * (s->s.h.fixcompref == 1 || + td->left_ref_ctx[row7] == 1); + } else { + c = 3 * (s->above_ref_ctx[col] == 1) + + (s->s.h.fixcompref == 1 || td->left_ref_ctx[row7] == 1); + } + } else if (!s->above_ref_ctx[col]) { + if (!td->left_ref_ctx[row7]) { + c = 3; + } else { + c = 4 * (td->left_ref_ctx[row7] == 1); + } + } else if (!td->left_ref_ctx[row7]) { + c = 4 * (s->above_ref_ctx[col] == 1); + } else { + c = 2 * (td->left_ref_ctx[row7] == 1) + + 2 * (s->above_ref_ctx[col] == 1); + } + } else { + if (s->above_intra_ctx[col] || + (!s->above_comp_ctx[col] && !s->above_ref_ctx[col])) { + c = 2; + } else if (s->above_comp_ctx[col]) { + c = 3 * (s->s.h.fixcompref == 1 || s->above_ref_ctx[col] == 1); + } else { + c = 4 * (s->above_ref_ctx[col] == 1); + } + } + } else if (have_l) { + if (td->left_intra_ctx[row7] || + (!td->left_comp_ctx[row7] && !td->left_ref_ctx[row7])) { + c = 2; + } else if (td->left_comp_ctx[row7]) { + c = 3 * (s->s.h.fixcompref == 1 || td->left_ref_ctx[row7] == 1); + } else { + c = 4 * (td->left_ref_ctx[row7] == 1); + } + } else { + c = 2; + } + bit = vpx_rac_get_prob(td->c, s->prob.p.single_ref[c][1]); + td->counts.single_ref[c][1][bit]++; + b->ref[0] = 1 + bit; + } + } + } + + if (b->bs <= BS_8x8) { + if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].skip_enabled) { + b->mode[0] = + b->mode[1] = + b->mode[2] = + b->mode[3] = ZEROMV; + } else { + static const uint8_t off[10] = { + 3, 0, 0, 1, 0, 0, 0, 0, 0, 0 + }; + + // FIXME this needs to use the LUT tables from find_ref_mvs + // because not all are -1,0/0,-1 + int c = inter_mode_ctx_lut[s->above_mode_ctx[col + off[b->bs]]] + [td->left_mode_ctx[row7 + off[b->bs]]]; + + b->mode[0] = vp89_rac_get_tree(td->c, ff_vp9_inter_mode_tree, + s->prob.p.mv_mode[c]); + b->mode[1] = + b->mode[2] = + b->mode[3] = b->mode[0]; + td->counts.mv_mode[c][b->mode[0] - 10]++; + } + } + + if (s->s.h.filtermode == FILTER_SWITCHABLE) { + int c; + + if (have_a && s->above_mode_ctx[col] >= NEARESTMV) { + if (have_l && td->left_mode_ctx[row7] >= NEARESTMV) { + c = s->above_filter_ctx[col] == td->left_filter_ctx[row7] ? + td->left_filter_ctx[row7] : 3; + } else { + c = s->above_filter_ctx[col]; + } + } else if (have_l && td->left_mode_ctx[row7] >= NEARESTMV) { + c = td->left_filter_ctx[row7]; + } else { + c = 3; + } + + filter_id = vp89_rac_get_tree(td->c, ff_vp9_filter_tree, + s->prob.p.filter[c]); + td->counts.filter[c][filter_id]++; + b->filter = ff_vp9_filter_lut[filter_id]; + } else { + b->filter = s->s.h.filtermode; + } + + if (b->bs > BS_8x8) { + int c = inter_mode_ctx_lut[s->above_mode_ctx[col]][td->left_mode_ctx[row7]]; + + b->mode[0] = vp89_rac_get_tree(td->c, ff_vp9_inter_mode_tree, + s->prob.p.mv_mode[c]); + td->counts.mv_mode[c][b->mode[0] - 10]++; + ff_vp9_fill_mv(td, b->mv[0], b->mode[0], 0); + + if (b->bs != BS_8x4) { + b->mode[1] = vp89_rac_get_tree(td->c, ff_vp9_inter_mode_tree, + s->prob.p.mv_mode[c]); + td->counts.mv_mode[c][b->mode[1] - 10]++; + ff_vp9_fill_mv(td, b->mv[1], b->mode[1], 1); + } else { + b->mode[1] = b->mode[0]; + AV_COPY32(&b->mv[1][0], &b->mv[0][0]); + AV_COPY32(&b->mv[1][1], &b->mv[0][1]); + } + + if (b->bs != BS_4x8) { + b->mode[2] = vp89_rac_get_tree(td->c, ff_vp9_inter_mode_tree, + s->prob.p.mv_mode[c]); + td->counts.mv_mode[c][b->mode[2] - 10]++; + ff_vp9_fill_mv(td, b->mv[2], b->mode[2], 2); + + if (b->bs != BS_8x4) { + b->mode[3] = vp89_rac_get_tree(td->c, ff_vp9_inter_mode_tree, + s->prob.p.mv_mode[c]); + td->counts.mv_mode[c][b->mode[3] - 10]++; + ff_vp9_fill_mv(td, b->mv[3], b->mode[3], 3); + } else { + b->mode[3] = b->mode[2]; + AV_COPY32(&b->mv[3][0], &b->mv[2][0]); + AV_COPY32(&b->mv[3][1], &b->mv[2][1]); + } + } else { + b->mode[2] = b->mode[0]; + AV_COPY32(&b->mv[2][0], &b->mv[0][0]); + AV_COPY32(&b->mv[2][1], &b->mv[0][1]); + b->mode[3] = b->mode[1]; + AV_COPY32(&b->mv[3][0], &b->mv[1][0]); + AV_COPY32(&b->mv[3][1], &b->mv[1][1]); + } + } else { + ff_vp9_fill_mv(td, b->mv[0], b->mode[0], -1); + AV_COPY32(&b->mv[1][0], &b->mv[0][0]); + AV_COPY32(&b->mv[2][0], &b->mv[0][0]); + AV_COPY32(&b->mv[3][0], &b->mv[0][0]); + AV_COPY32(&b->mv[1][1], &b->mv[0][1]); + AV_COPY32(&b->mv[2][1], &b->mv[0][1]); + AV_COPY32(&b->mv[3][1], &b->mv[0][1]); + } + + vref = b->ref[b->comp ? s->s.h.signbias[s->s.h.varcompref[0]] : 0]; + } + +#if HAVE_FAST_64BIT +#define SPLAT_CTX(var, val, n) \ + switch (n) { \ + case 1: var = val; break; \ + case 2: AV_WN16A(&var, val * 0x0101); break; \ + case 4: AV_WN32A(&var, val * 0x01010101); break; \ + case 8: AV_WN64A(&var, val * 0x0101010101010101ULL); break; \ + case 16: { \ + uint64_t v64 = val * 0x0101010101010101ULL; \ + AV_WN64A( &var, v64); \ + AV_WN64A(&((uint8_t *) &var)[8], v64); \ + break; \ + } \ + } +#else +#define SPLAT_CTX(var, val, n) \ + switch (n) { \ + case 1: var = val; break; \ + case 2: AV_WN16A(&var, val * 0x0101); break; \ + case 4: AV_WN32A(&var, val * 0x01010101); break; \ + case 8: { \ + uint32_t v32 = val * 0x01010101; \ + AV_WN32A( &var, v32); \ + AV_WN32A(&((uint8_t *) &var)[4], v32); \ + break; \ + } \ + case 16: { \ + uint32_t v32 = val * 0x01010101; \ + AV_WN32A( &var, v32); \ + AV_WN32A(&((uint8_t *) &var)[4], v32); \ + AV_WN32A(&((uint8_t *) &var)[8], v32); \ + AV_WN32A(&((uint8_t *) &var)[12], v32); \ + break; \ + } \ + } +#endif + + switch (ff_vp9_bwh_tab[1][b->bs][0]) { +#define SET_CTXS(perf, dir, off, n) \ + do { \ + SPLAT_CTX(perf->dir##_skip_ctx[off], b->skip, n); \ + SPLAT_CTX(perf->dir##_txfm_ctx[off], b->tx, n); \ + SPLAT_CTX(perf->dir##_partition_ctx[off], dir##_ctx[b->bs], n); \ + if (!s->s.h.keyframe && !s->s.h.intraonly) { \ + SPLAT_CTX(perf->dir##_intra_ctx[off], b->intra, n); \ + SPLAT_CTX(perf->dir##_comp_ctx[off], b->comp, n); \ + SPLAT_CTX(perf->dir##_mode_ctx[off], b->mode[3], n); \ + if (!b->intra) { \ + SPLAT_CTX(perf->dir##_ref_ctx[off], vref, n); \ + if (s->s.h.filtermode == FILTER_SWITCHABLE) { \ + SPLAT_CTX(perf->dir##_filter_ctx[off], filter_id, n); \ + } \ + } \ + } \ + } while (0) + case 1: SET_CTXS(s, above, col, 1); break; + case 2: SET_CTXS(s, above, col, 2); break; + case 4: SET_CTXS(s, above, col, 4); break; + case 8: SET_CTXS(s, above, col, 8); break; + } + switch (ff_vp9_bwh_tab[1][b->bs][1]) { + case 1: SET_CTXS(td, left, row7, 1); break; + case 2: SET_CTXS(td, left, row7, 2); break; + case 4: SET_CTXS(td, left, row7, 4); break; + case 8: SET_CTXS(td, left, row7, 8); break; + } +#undef SPLAT_CTX +#undef SET_CTXS + + if (!s->s.h.keyframe && !s->s.h.intraonly) { + if (b->bs > BS_8x8) { + int mv0 = AV_RN32A(&b->mv[3][0]), mv1 = AV_RN32A(&b->mv[3][1]); + + AV_COPY32(&td->left_mv_ctx[row7 * 2 + 0][0], &b->mv[1][0]); + AV_COPY32(&td->left_mv_ctx[row7 * 2 + 0][1], &b->mv[1][1]); + AV_WN32A(&td->left_mv_ctx[row7 * 2 + 1][0], mv0); + AV_WN32A(&td->left_mv_ctx[row7 * 2 + 1][1], mv1); + AV_COPY32(&s->above_mv_ctx[col * 2 + 0][0], &b->mv[2][0]); + AV_COPY32(&s->above_mv_ctx[col * 2 + 0][1], &b->mv[2][1]); + AV_WN32A(&s->above_mv_ctx[col * 2 + 1][0], mv0); + AV_WN32A(&s->above_mv_ctx[col * 2 + 1][1], mv1); + } else { + int n, mv0 = AV_RN32A(&b->mv[3][0]), mv1 = AV_RN32A(&b->mv[3][1]); + + for (n = 0; n < w4 * 2; n++) { + AV_WN32A(&s->above_mv_ctx[col * 2 + n][0], mv0); + AV_WN32A(&s->above_mv_ctx[col * 2 + n][1], mv1); + } + for (n = 0; n < h4 * 2; n++) { + AV_WN32A(&td->left_mv_ctx[row7 * 2 + n][0], mv0); + AV_WN32A(&td->left_mv_ctx[row7 * 2 + n][1], mv1); + } + } + } + + // FIXME kinda ugly + for (y = 0; y < h4; y++) { + int x, o = (row + y) * s->sb_cols * 8 + col; + VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[o]; + + if (b->intra) { + for (x = 0; x < w4; x++) { + mv[x].ref[0] = + mv[x].ref[1] = -1; + } + } else if (b->comp) { + for (x = 0; x < w4; x++) { + mv[x].ref[0] = b->ref[0]; + mv[x].ref[1] = b->ref[1]; + AV_COPY32(&mv[x].mv[0], &b->mv[3][0]); + AV_COPY32(&mv[x].mv[1], &b->mv[3][1]); + } + } else { + for (x = 0; x < w4; x++) { + mv[x].ref[0] = b->ref[0]; + mv[x].ref[1] = -1; + AV_COPY32(&mv[x].mv[0], &b->mv[3][0]); + } + } + } +} + +// FIXME merge cnt/eob arguments? +static av_always_inline int +decode_coeffs_b_generic(VPXRangeCoder *c, int16_t *coef, int n_coeffs, + int is_tx32x32, int is8bitsperpixel, int bpp, unsigned (*cnt)[6][3], + unsigned (*eob)[6][2], const uint8_t (*p)[6][11], + int nnz, const int16_t *scan, const int16_t (*nb)[2], + const int16_t *band_counts, const int16_t *qmul) +{ + int i = 0, band = 0, band_left = band_counts[band]; + const uint8_t *tp = p[0][nnz]; + uint8_t cache[1024]; + + do { + int val, rc; + + val = vpx_rac_get_prob_branchy(c, tp[0]); // eob + eob[band][nnz][val]++; + if (!val) + break; + +skip_eob: + if (!vpx_rac_get_prob_branchy(c, tp[1])) { // zero + cnt[band][nnz][0]++; + if (!--band_left) + band_left = band_counts[++band]; + cache[scan[i]] = 0; + nnz = (1 + cache[nb[i][0]] + cache[nb[i][1]]) >> 1; + tp = p[band][nnz]; + if (++i == n_coeffs) + break; //invalid input; blocks should end with EOB + goto skip_eob; + } + + rc = scan[i]; + if (!vpx_rac_get_prob_branchy(c, tp[2])) { // one + cnt[band][nnz][1]++; + val = 1; + cache[rc] = 1; + } else { + cnt[band][nnz][2]++; + if (!vpx_rac_get_prob_branchy(c, tp[3])) { // 2, 3, 4 + if (!vpx_rac_get_prob_branchy(c, tp[4])) { + cache[rc] = val = 2; + } else { + val = 3 + vpx_rac_get_prob(c, tp[5]); + cache[rc] = 3; + } + } else if (!vpx_rac_get_prob_branchy(c, tp[6])) { // cat1/2 + cache[rc] = 4; + if (!vpx_rac_get_prob_branchy(c, tp[7])) { + val = vpx_rac_get_prob(c, 159) + 5; + } else { + val = (vpx_rac_get_prob(c, 165) << 1) + 7; + val += vpx_rac_get_prob(c, 145); + } + } else { // cat 3-6 + cache[rc] = 5; + if (!vpx_rac_get_prob_branchy(c, tp[8])) { + if (!vpx_rac_get_prob_branchy(c, tp[9])) { + val = 11 + (vpx_rac_get_prob(c, 173) << 2); + val += (vpx_rac_get_prob(c, 148) << 1); + val += vpx_rac_get_prob(c, 140); + } else { + val = 19 + (vpx_rac_get_prob(c, 176) << 3); + val += (vpx_rac_get_prob(c, 155) << 2); + val += (vpx_rac_get_prob(c, 140) << 1); + val += vpx_rac_get_prob(c, 135); + } + } else if (!vpx_rac_get_prob_branchy(c, tp[10])) { + val = (vpx_rac_get_prob(c, 180) << 4) + 35; + val += (vpx_rac_get_prob(c, 157) << 3); + val += (vpx_rac_get_prob(c, 141) << 2); + val += (vpx_rac_get_prob(c, 134) << 1); + val += vpx_rac_get_prob(c, 130); + } else { + val = 67; + if (!is8bitsperpixel) { + if (bpp == 12) { + val += vpx_rac_get_prob(c, 255) << 17; + val += vpx_rac_get_prob(c, 255) << 16; + } + val += (vpx_rac_get_prob(c, 255) << 15); + val += (vpx_rac_get_prob(c, 255) << 14); + } + val += (vpx_rac_get_prob(c, 254) << 13); + val += (vpx_rac_get_prob(c, 254) << 12); + val += (vpx_rac_get_prob(c, 254) << 11); + val += (vpx_rac_get_prob(c, 252) << 10); + val += (vpx_rac_get_prob(c, 249) << 9); + val += (vpx_rac_get_prob(c, 243) << 8); + val += (vpx_rac_get_prob(c, 230) << 7); + val += (vpx_rac_get_prob(c, 196) << 6); + val += (vpx_rac_get_prob(c, 177) << 5); + val += (vpx_rac_get_prob(c, 153) << 4); + val += (vpx_rac_get_prob(c, 140) << 3); + val += (vpx_rac_get_prob(c, 133) << 2); + val += (vpx_rac_get_prob(c, 130) << 1); + val += vpx_rac_get_prob(c, 129); + } + } + } +#define STORE_COEF(c, i, v) do { \ + if (is8bitsperpixel) { \ + c[i] = v; \ + } else { \ + AV_WN32A(&c[i * 2], v); \ + } \ +} while (0) + if (!--band_left) + band_left = band_counts[++band]; + if (is_tx32x32) + STORE_COEF(coef, rc, (int)((vp89_rac_get(c) ? -val : val) * (unsigned)qmul[!!i]) / 2); + else + STORE_COEF(coef, rc, (vp89_rac_get(c) ? -val : val) * (unsigned)qmul[!!i]); + nnz = (1 + cache[nb[i][0]] + cache[nb[i][1]]) >> 1; + tp = p[band][nnz]; + } while (++i < n_coeffs); + + return i; +} + +static int decode_coeffs_b_8bpp(VP9TileData *td, int16_t *coef, int n_coeffs, + unsigned (*cnt)[6][3], unsigned (*eob)[6][2], + const uint8_t (*p)[6][11], int nnz, const int16_t *scan, + const int16_t (*nb)[2], const int16_t *band_counts, + const int16_t *qmul) +{ + return decode_coeffs_b_generic(td->c, coef, n_coeffs, 0, 1, 8, cnt, eob, p, + nnz, scan, nb, band_counts, qmul); +} + +static int decode_coeffs_b32_8bpp(VP9TileData *td, int16_t *coef, int n_coeffs, + unsigned (*cnt)[6][3], unsigned (*eob)[6][2], + const uint8_t (*p)[6][11], int nnz, const int16_t *scan, + const int16_t (*nb)[2], const int16_t *band_counts, + const int16_t *qmul) +{ + return decode_coeffs_b_generic(td->c, coef, n_coeffs, 1, 1, 8, cnt, eob, p, + nnz, scan, nb, band_counts, qmul); +} + +static int decode_coeffs_b_16bpp(VP9TileData *td, int16_t *coef, int n_coeffs, + unsigned (*cnt)[6][3], unsigned (*eob)[6][2], + const uint8_t (*p)[6][11], int nnz, const int16_t *scan, + const int16_t (*nb)[2], const int16_t *band_counts, + const int16_t *qmul) +{ + return decode_coeffs_b_generic(td->c, coef, n_coeffs, 0, 0, td->s->s.h.bpp, cnt, eob, p, + nnz, scan, nb, band_counts, qmul); +} + +static int decode_coeffs_b32_16bpp(VP9TileData *td, int16_t *coef, int n_coeffs, + unsigned (*cnt)[6][3], unsigned (*eob)[6][2], + const uint8_t (*p)[6][11], int nnz, const int16_t *scan, + const int16_t (*nb)[2], const int16_t *band_counts, + const int16_t *qmul) +{ + return decode_coeffs_b_generic(td->c, coef, n_coeffs, 1, 0, td->s->s.h.bpp, cnt, eob, p, + nnz, scan, nb, band_counts, qmul); +} + +static av_always_inline int decode_coeffs(VP9TileData *td, int is8bitsperpixel) +{ + const VP9Context *s = td->s; + VP9Block *b = td->b; + int row = td->row, col = td->col; + const uint8_t (*p)[6][11] = s->prob.coef[b->tx][0 /* y */][!b->intra]; + unsigned (*c)[6][3] = td->counts.coef[b->tx][0 /* y */][!b->intra]; + unsigned (*e)[6][2] = td->counts.eob[b->tx][0 /* y */][!b->intra]; + int w4 = ff_vp9_bwh_tab[1][b->bs][0] << 1, h4 = ff_vp9_bwh_tab[1][b->bs][1] << 1; + int end_x = FFMIN(2 * (s->cols - col), w4); + int end_y = FFMIN(2 * (s->rows - row), h4); + int n, pl, x, y, ret; + const int16_t (*qmul)[2] = s->s.h.segmentation.feat[b->seg_id].qmul; + int tx = 4 * s->s.h.lossless + b->tx; + const int16_t * const *yscans = ff_vp9_scans[tx]; + const int16_t (* const * ynbs)[2] = ff_vp9_scans_nb[tx]; + const int16_t *uvscan = ff_vp9_scans[b->uvtx][DCT_DCT]; + const int16_t (*uvnb)[2] = ff_vp9_scans_nb[b->uvtx][DCT_DCT]; + uint8_t *a = &s->above_y_nnz_ctx[col * 2]; + uint8_t *l = &td->left_y_nnz_ctx[(row & 7) << 1]; + static const int16_t band_counts[4][8] = { + { 1, 2, 3, 4, 3, 16 - 13 }, + { 1, 2, 3, 4, 11, 64 - 21 }, + { 1, 2, 3, 4, 11, 256 - 21 }, + { 1, 2, 3, 4, 11, 1024 - 21 }, + }; + const int16_t *y_band_counts = band_counts[b->tx]; + const int16_t *uv_band_counts = band_counts[b->uvtx]; + int bytesperpixel = is8bitsperpixel ? 1 : 2; + int total_coeff = 0; + +#define MERGE(la, end, step, rd) \ + for (n = 0; n < end; n += step) \ + la[n] = !!rd(&la[n]) +#define MERGE_CTX(step, rd) \ + do { \ + MERGE(l, end_y, step, rd); \ + MERGE(a, end_x, step, rd); \ + } while (0) + +#define DECODE_Y_COEF_LOOP(step, mode_index, v) \ + for (n = 0, y = 0; y < end_y; y += step) { \ + for (x = 0; x < end_x; x += step, n += step * step) { \ + enum TxfmType txtp = ff_vp9_intra_txfm_type[b->mode[mode_index]]; \ + ret = (is8bitsperpixel ? decode_coeffs_b##v##_8bpp : decode_coeffs_b##v##_16bpp) \ + (td, td->block + 16 * n * bytesperpixel, 16 * step * step, \ + c, e, p, a[x] + l[y], yscans[txtp], \ + ynbs[txtp], y_band_counts, qmul[0]); \ + a[x] = l[y] = !!ret; \ + total_coeff |= !!ret; \ + if (step >= 4) { \ + AV_WN16A(&td->eob[n], ret); \ + } else { \ + td->eob[n] = ret; \ + } \ + } \ + } + +#define SPLAT(la, end, step, cond) \ + if (step == 2) { \ + for (n = 1; n < end; n += step) \ + la[n] = la[n - 1]; \ + } else if (step == 4) { \ + if (cond) { \ + for (n = 0; n < end; n += step) \ + AV_WN32A(&la[n], la[n] * 0x01010101); \ + } else { \ + for (n = 0; n < end; n += step) \ + memset(&la[n + 1], la[n], FFMIN(end - n - 1, 3)); \ + } \ + } else /* step == 8 */ { \ + if (cond) { \ + if (HAVE_FAST_64BIT) { \ + for (n = 0; n < end; n += step) \ + AV_WN64A(&la[n], la[n] * 0x0101010101010101ULL); \ + } else { \ + for (n = 0; n < end; n += step) { \ + uint32_t v32 = la[n] * 0x01010101; \ + AV_WN32A(&la[n], v32); \ + AV_WN32A(&la[n + 4], v32); \ + } \ + } \ + } else { \ + for (n = 0; n < end; n += step) \ + memset(&la[n + 1], la[n], FFMIN(end - n - 1, 7)); \ + } \ + } +#define SPLAT_CTX(step) \ + do { \ + SPLAT(a, end_x, step, end_x == w4); \ + SPLAT(l, end_y, step, end_y == h4); \ + } while (0) + + /* y tokens */ + switch (b->tx) { + case TX_4X4: + DECODE_Y_COEF_LOOP(1, b->bs > BS_8x8 ? n : 0,); + break; + case TX_8X8: + MERGE_CTX(2, AV_RN16A); + DECODE_Y_COEF_LOOP(2, 0,); + SPLAT_CTX(2); + break; + case TX_16X16: + MERGE_CTX(4, AV_RN32A); + DECODE_Y_COEF_LOOP(4, 0,); + SPLAT_CTX(4); + break; + case TX_32X32: + MERGE_CTX(8, AV_RN64A); + DECODE_Y_COEF_LOOP(8, 0, 32); + SPLAT_CTX(8); + break; + } + +#define DECODE_UV_COEF_LOOP(step, v) \ + for (n = 0, y = 0; y < end_y; y += step) { \ + for (x = 0; x < end_x; x += step, n += step * step) { \ + ret = (is8bitsperpixel ? decode_coeffs_b##v##_8bpp : decode_coeffs_b##v##_16bpp) \ + (td, td->uvblock[pl] + 16 * n * bytesperpixel, \ + 16 * step * step, c, e, p, a[x] + l[y], \ + uvscan, uvnb, uv_band_counts, qmul[1]); \ + a[x] = l[y] = !!ret; \ + total_coeff |= !!ret; \ + if (step >= 4) { \ + AV_WN16A(&td->uveob[pl][n], ret); \ + } else { \ + td->uveob[pl][n] = ret; \ + } \ + } \ + } + + p = s->prob.coef[b->uvtx][1 /* uv */][!b->intra]; + c = td->counts.coef[b->uvtx][1 /* uv */][!b->intra]; + e = td->counts.eob[b->uvtx][1 /* uv */][!b->intra]; + w4 >>= s->ss_h; + end_x >>= s->ss_h; + h4 >>= s->ss_v; + end_y >>= s->ss_v; + for (pl = 0; pl < 2; pl++) { + a = &s->above_uv_nnz_ctx[pl][col << !s->ss_h]; + l = &td->left_uv_nnz_ctx[pl][(row & 7) << !s->ss_v]; + switch (b->uvtx) { + case TX_4X4: + DECODE_UV_COEF_LOOP(1,); + break; + case TX_8X8: + MERGE_CTX(2, AV_RN16A); + DECODE_UV_COEF_LOOP(2,); + SPLAT_CTX(2); + break; + case TX_16X16: + MERGE_CTX(4, AV_RN32A); + DECODE_UV_COEF_LOOP(4,); + SPLAT_CTX(4); + break; + case TX_32X32: + MERGE_CTX(8, AV_RN64A); + DECODE_UV_COEF_LOOP(8, 32); + SPLAT_CTX(8); + break; + } + } + + return total_coeff; +} + +static int decode_coeffs_8bpp(VP9TileData *td) +{ + return decode_coeffs(td, 1); +} + +static int decode_coeffs_16bpp(VP9TileData *td) +{ + return decode_coeffs(td, 0); +} + +static av_always_inline void mask_edges(uint8_t (*mask)[8][4], int ss_h, int ss_v, + int row_and_7, int col_and_7, + int w, int h, int col_end, int row_end, + enum TxfmMode tx, int skip_inter) +{ + static const unsigned wide_filter_col_mask[2] = { 0x11, 0x01 }; + static const unsigned wide_filter_row_mask[2] = { 0x03, 0x07 }; + + // FIXME I'm pretty sure all loops can be replaced by a single LUT if + // we make VP9Filter.mask uint64_t (i.e. row/col all single variable) + // and make the LUT 5-indexed (bl, bp, is_uv, tx and row/col), and then + // use row_and_7/col_and_7 as shifts (1*col_and_7+8*row_and_7) + + // the intended behaviour of the vp9 loopfilter is to work on 8-pixel + // edges. This means that for UV, we work on two subsampled blocks at + // a time, and we only use the topleft block's mode information to set + // things like block strength. Thus, for any block size smaller than + // 16x16, ignore the odd portion of the block. + if (tx == TX_4X4 && (ss_v | ss_h)) { + if (h == ss_v) { + if (row_and_7 & 1) + return; + if (!row_end) + h += 1; + } + if (w == ss_h) { + if (col_and_7 & 1) + return; + if (!col_end) + w += 1; + } + } + + if (tx == TX_4X4 && !skip_inter) { + int t = 1 << col_and_7, m_col = (t << w) - t, y; + // on 32-px edges, use the 8-px wide loopfilter; else, use 4-px wide + int m_row_8 = m_col & wide_filter_col_mask[ss_h], m_row_4 = m_col - m_row_8; + + for (y = row_and_7; y < h + row_and_7; y++) { + int col_mask_id = 2 - !(y & wide_filter_row_mask[ss_v]); + + mask[0][y][1] |= m_row_8; + mask[0][y][2] |= m_row_4; + // for odd lines, if the odd col is not being filtered, + // skip odd row also: + // .---. <-- a + // | | + // |___| <-- b + // ^ ^ + // c d + // + // if a/c are even row/col and b/d are odd, and d is skipped, + // e.g. right edge of size-66x66.webm, then skip b also (bug) + if ((ss_h & ss_v) && (col_end & 1) && (y & 1)) { + mask[1][y][col_mask_id] |= (t << (w - 1)) - t; + } else { + mask[1][y][col_mask_id] |= m_col; + } + if (!ss_h) + mask[0][y][3] |= m_col; + if (!ss_v) { + if (ss_h && (col_end & 1)) + mask[1][y][3] |= (t << (w - 1)) - t; + else + mask[1][y][3] |= m_col; + } + } + } else { + int y, t = 1 << col_and_7, m_col = (t << w) - t; + + if (!skip_inter) { + int mask_id = (tx == TX_8X8); + int l2 = tx + ss_h - 1, step1d; + static const unsigned masks[4] = { 0xff, 0x55, 0x11, 0x01 }; + int m_row = m_col & masks[l2]; + + // at odd UV col/row edges tx16/tx32 loopfilter edges, force + // 8wd loopfilter to prevent going off the visible edge. + if (ss_h && tx > TX_8X8 && (w ^ (w - 1)) == 1) { + int m_row_16 = ((t << (w - 1)) - t) & masks[l2]; + int m_row_8 = m_row - m_row_16; + + for (y = row_and_7; y < h + row_and_7; y++) { + mask[0][y][0] |= m_row_16; + mask[0][y][1] |= m_row_8; + } + } else { + for (y = row_and_7; y < h + row_and_7; y++) + mask[0][y][mask_id] |= m_row; + } + + l2 = tx + ss_v - 1; + step1d = 1 << l2; + if (ss_v && tx > TX_8X8 && (h ^ (h - 1)) == 1) { + for (y = row_and_7; y < h + row_and_7 - 1; y += step1d) + mask[1][y][0] |= m_col; + if (y - row_and_7 == h - 1) + mask[1][y][1] |= m_col; + } else { + for (y = row_and_7; y < h + row_and_7; y += step1d) + mask[1][y][mask_id] |= m_col; + } + } else if (tx != TX_4X4) { + int mask_id; + + mask_id = (tx == TX_8X8) || (h == ss_v); + mask[1][row_and_7][mask_id] |= m_col; + mask_id = (tx == TX_8X8) || (w == ss_h); + for (y = row_and_7; y < h + row_and_7; y++) + mask[0][y][mask_id] |= t; + } else { + int t8 = t & wide_filter_col_mask[ss_h], t4 = t - t8; + + for (y = row_and_7; y < h + row_and_7; y++) { + mask[0][y][2] |= t4; + mask[0][y][1] |= t8; + } + mask[1][row_and_7][2 - !(row_and_7 & wide_filter_row_mask[ss_v])] |= m_col; + } + } +} + +void ff_vp9_decode_block(VP9TileData *td, int row, int col, + VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff, + enum BlockLevel bl, enum BlockPartition bp) +{ + const VP9Context *s = td->s; + VP9Block *b = td->b; + enum BlockSize bs = bl * 3 + bp; + int bytesperpixel = s->bytesperpixel; + int w4 = ff_vp9_bwh_tab[1][bs][0], h4 = ff_vp9_bwh_tab[1][bs][1], lvl; + int emu[2]; + AVFrame *f = s->s.frames[CUR_FRAME].tf.f; + + td->row = row; + td->row7 = row & 7; + td->col = col; + td->col7 = col & 7; + + td->min_mv.x = -(128 + col * 64); + td->min_mv.y = -(128 + row * 64); + td->max_mv.x = 128 + (s->cols - col - w4) * 64; + td->max_mv.y = 128 + (s->rows - row - h4) * 64; + + if (s->pass < 2) { + b->bs = bs; + b->bl = bl; + b->bp = bp; + decode_mode(td); + b->uvtx = b->tx - ((s->ss_h && w4 * 2 == (1 << b->tx)) || + (s->ss_v && h4 * 2 == (1 << b->tx))); + + if (td->block_structure) { + td->block_structure[td->nb_block_structure].row = row; + td->block_structure[td->nb_block_structure].col = col; + td->block_structure[td->nb_block_structure].block_size_idx_x = av_log2(w4); + td->block_structure[td->nb_block_structure].block_size_idx_y = av_log2(h4); + td->nb_block_structure++; + } + + if (!b->skip) { + int has_coeffs; + + if (bytesperpixel == 1) { + has_coeffs = decode_coeffs_8bpp(td); + } else { + has_coeffs = decode_coeffs_16bpp(td); + } + if (!has_coeffs && b->bs <= BS_8x8 && !b->intra) { + b->skip = 1; + memset(&s->above_skip_ctx[col], 1, w4); + memset(&td->left_skip_ctx[td->row7], 1, h4); + } + } else { + int row7 = td->row7; + +#define SPLAT_ZERO_CTX(v, n) \ + switch (n) { \ + case 1: v = 0; break; \ + case 2: AV_ZERO16(&v); break; \ + case 4: AV_ZERO32(&v); break; \ + case 8: AV_ZERO64(&v); break; \ + case 16: AV_ZERO128(&v); break; \ + } +#define SPLAT_ZERO_YUV(dir, var, off, n, dir2) \ + do { \ + SPLAT_ZERO_CTX(dir##_y_##var[off * 2], n * 2); \ + if (s->ss_##dir2) { \ + SPLAT_ZERO_CTX(dir##_uv_##var[0][off], n); \ + SPLAT_ZERO_CTX(dir##_uv_##var[1][off], n); \ + } else { \ + SPLAT_ZERO_CTX(dir##_uv_##var[0][off * 2], n * 2); \ + SPLAT_ZERO_CTX(dir##_uv_##var[1][off * 2], n * 2); \ + } \ + } while (0) + + switch (w4) { + case 1: SPLAT_ZERO_YUV(s->above, nnz_ctx, col, 1, h); break; + case 2: SPLAT_ZERO_YUV(s->above, nnz_ctx, col, 2, h); break; + case 4: SPLAT_ZERO_YUV(s->above, nnz_ctx, col, 4, h); break; + case 8: SPLAT_ZERO_YUV(s->above, nnz_ctx, col, 8, h); break; + } + switch (h4) { + case 1: SPLAT_ZERO_YUV(td->left, nnz_ctx, row7, 1, v); break; + case 2: SPLAT_ZERO_YUV(td->left, nnz_ctx, row7, 2, v); break; + case 4: SPLAT_ZERO_YUV(td->left, nnz_ctx, row7, 4, v); break; + case 8: SPLAT_ZERO_YUV(td->left, nnz_ctx, row7, 8, v); break; + } + } + + if (s->pass == 1) { + s->td[0].b++; + s->td[0].block += w4 * h4 * 64 * bytesperpixel; + s->td[0].uvblock[0] += w4 * h4 * 64 * bytesperpixel >> (s->ss_h + s->ss_v); + s->td[0].uvblock[1] += w4 * h4 * 64 * bytesperpixel >> (s->ss_h + s->ss_v); + s->td[0].eob += 4 * w4 * h4; + s->td[0].uveob[0] += 4 * w4 * h4 >> (s->ss_h + s->ss_v); + s->td[0].uveob[1] += 4 * w4 * h4 >> (s->ss_h + s->ss_v); + + return; + } + } + + // emulated overhangs if the stride of the target buffer can't hold. This + // makes it possible to support emu-edge and so on even if we have large block + // overhangs + emu[0] = (col + w4) * 8 * bytesperpixel > f->linesize[0] || + (row + h4) > s->rows; + emu[1] = ((col + w4) * 8 >> s->ss_h) * bytesperpixel > f->linesize[1] || + (row + h4) > s->rows; + if (emu[0]) { + td->dst[0] = td->tmp_y; + td->y_stride = 128; + } else { + td->dst[0] = f->data[0] + yoff; + td->y_stride = f->linesize[0]; + } + if (emu[1]) { + td->dst[1] = td->tmp_uv[0]; + td->dst[2] = td->tmp_uv[1]; + td->uv_stride = 128; + } else { + td->dst[1] = f->data[1] + uvoff; + td->dst[2] = f->data[2] + uvoff; + td->uv_stride = f->linesize[1]; + } + if (b->intra) { + if (s->s.h.bpp > 8) { + ff_vp9_intra_recon_16bpp(td, yoff, uvoff); + } else { + ff_vp9_intra_recon_8bpp(td, yoff, uvoff); + } + } else { + if (s->s.h.bpp > 8) { + ff_vp9_inter_recon_16bpp(td); + } else { + ff_vp9_inter_recon_8bpp(td); + } + } + if (emu[0]) { + int w = FFMIN(s->cols - col, w4) * 8, h = FFMIN(s->rows - row, h4) * 8, n, o = 0; + + for (n = 0; o < w; n++) { + int bw = 64 >> n; + + av_assert2(n <= 4); + if (w & bw) { + s->dsp.mc[n][0][0][0][0](f->data[0] + yoff + o * bytesperpixel, f->linesize[0], + td->tmp_y + o * bytesperpixel, 128, h, 0, 0); + o += bw; + } + } + } + if (emu[1]) { + int w = FFMIN(s->cols - col, w4) * 8 >> s->ss_h; + int h = FFMIN(s->rows - row, h4) * 8 >> s->ss_v, n, o = 0; + + for (n = s->ss_h; o < w; n++) { + int bw = 64 >> n; + + av_assert2(n <= 4); + if (w & bw) { + s->dsp.mc[n][0][0][0][0](f->data[1] + uvoff + o * bytesperpixel, f->linesize[1], + td->tmp_uv[0] + o * bytesperpixel, 128, h, 0, 0); + s->dsp.mc[n][0][0][0][0](f->data[2] + uvoff + o * bytesperpixel, f->linesize[2], + td->tmp_uv[1] + o * bytesperpixel, 128, h, 0, 0); + o += bw; + } + } + } + + // pick filter level and find edges to apply filter to + if (s->s.h.filter.level && + (lvl = s->s.h.segmentation.feat[b->seg_id].lflvl[b->intra ? 0 : b->ref[0] + 1] + [b->mode[3] != ZEROMV]) > 0) { + int x_end = FFMIN(s->cols - col, w4), y_end = FFMIN(s->rows - row, h4); + int skip_inter = !b->intra && b->skip, col7 = td->col7, row7 = td->row7; + + setctx_2d(&lflvl->level[row7 * 8 + col7], w4, h4, 8, lvl); + mask_edges(lflvl->mask[0], 0, 0, row7, col7, x_end, y_end, 0, 0, b->tx, skip_inter); + if (s->ss_h || s->ss_v) + mask_edges(lflvl->mask[1], s->ss_h, s->ss_v, row7, col7, x_end, y_end, + s->cols & 1 && col + w4 >= s->cols ? s->cols & 7 : 0, + s->rows & 1 && row + h4 >= s->rows ? s->rows & 7 : 0, + b->uvtx, skip_inter); + } + + if (s->pass == 2) { + s->td[0].b++; + s->td[0].block += w4 * h4 * 64 * bytesperpixel; + s->td[0].uvblock[0] += w4 * h4 * 64 * bytesperpixel >> (s->ss_v + s->ss_h); + s->td[0].uvblock[1] += w4 * h4 * 64 * bytesperpixel >> (s->ss_v + s->ss_h); + s->td[0].eob += 4 * w4 * h4; + s->td[0].uveob[0] += 4 * w4 * h4 >> (s->ss_v + s->ss_h); + s->td[0].uveob[1] += 4 * w4 * h4 >> (s->ss_v + s->ss_h); + } +} |