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Diffstat (limited to 'media/ffvpx/libavcodec/vp9block.c')
-rw-r--r--media/ffvpx/libavcodec/vp9block.c1449
1 files changed, 1449 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/vp9block.c b/media/ffvpx/libavcodec/vp9block.c
new file mode 100644
index 0000000000..1c3f7a7225
--- /dev/null
+++ b/media/ffvpx/libavcodec/vp9block.c
@@ -0,0 +1,1449 @@
+/*
+ * 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 "avcodec.h"
+#include "internal.h"
+#include "videodsp.h"
+#include "vp56.h"
+#include "vp9.h"
+#include "vp9data.h"
+#include "vp9dec.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
+ };
+ 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 :
+ vp8_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 &&
+ vp56_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 = vp8_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 = vp56_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 = vp56_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 = vp56_rac_get_prob(td->c, s->prob.p.tx32p[c][0]);
+ if (b->tx) {
+ b->tx += vp56_rac_get_prob(td->c, s->prob.p.tx32p[c][1]);
+ if (b->tx == 2)
+ b->tx += vp56_rac_get_prob(td->c, s->prob.p.tx32p[c][2]);
+ }
+ td->counts.tx32p[c][b->tx]++;
+ break;
+ case TX_16X16:
+ b->tx = vp56_rac_get_prob(td->c, s->prob.p.tx16p[c][0]);
+ if (b->tx)
+ b->tx += vp56_rac_get_prob(td->c, s->prob.p.tx16p[c][1]);
+ td->counts.tx16p[c][b->tx]++;
+ break;
+ case TX_8X8:
+ b->tx = vp56_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] = vp8_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] = vp8_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] = vp8_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] = vp8_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] = vp8_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 = vp8_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] = vp8_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] = vp8_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] = vp8_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] = vp8_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] = vp8_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 = vp8_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 = vp56_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 = vp56_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 = vp56_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 = vp56_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] = vp8_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 = vp8_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] = vp8_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] = vp8_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] = vp8_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] = vp8_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(VP56RangeCoder *c, int16_t *coef, int n_coeffs,
+ int is_tx32x32, int is8bitsperpixel, int bpp, unsigned (*cnt)[6][3],
+ unsigned (*eob)[6][2], uint8_t (*p)[6][11],
+ int nnz, const int16_t *scan, const int16_t (*nb)[2],
+ const int16_t *band_counts, 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 = vp56_rac_get_prob_branchy(c, tp[0]); // eob
+ eob[band][nnz][val]++;
+ if (!val)
+ break;
+
+skip_eob:
+ if (!vp56_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 (!vp56_rac_get_prob_branchy(c, tp[2])) { // one
+ cnt[band][nnz][1]++;
+ val = 1;
+ cache[rc] = 1;
+ } else {
+ cnt[band][nnz][2]++;
+ if (!vp56_rac_get_prob_branchy(c, tp[3])) { // 2, 3, 4
+ if (!vp56_rac_get_prob_branchy(c, tp[4])) {
+ cache[rc] = val = 2;
+ } else {
+ val = 3 + vp56_rac_get_prob(c, tp[5]);
+ cache[rc] = 3;
+ }
+ } else if (!vp56_rac_get_prob_branchy(c, tp[6])) { // cat1/2
+ cache[rc] = 4;
+ if (!vp56_rac_get_prob_branchy(c, tp[7])) {
+ val = vp56_rac_get_prob(c, 159) + 5;
+ } else {
+ val = (vp56_rac_get_prob(c, 165) << 1) + 7;
+ val += vp56_rac_get_prob(c, 145);
+ }
+ } else { // cat 3-6
+ cache[rc] = 5;
+ if (!vp56_rac_get_prob_branchy(c, tp[8])) {
+ if (!vp56_rac_get_prob_branchy(c, tp[9])) {
+ val = 11 + (vp56_rac_get_prob(c, 173) << 2);
+ val += (vp56_rac_get_prob(c, 148) << 1);
+ val += vp56_rac_get_prob(c, 140);
+ } else {
+ val = 19 + (vp56_rac_get_prob(c, 176) << 3);
+ val += (vp56_rac_get_prob(c, 155) << 2);
+ val += (vp56_rac_get_prob(c, 140) << 1);
+ val += vp56_rac_get_prob(c, 135);
+ }
+ } else if (!vp56_rac_get_prob_branchy(c, tp[10])) {
+ val = (vp56_rac_get_prob(c, 180) << 4) + 35;
+ val += (vp56_rac_get_prob(c, 157) << 3);
+ val += (vp56_rac_get_prob(c, 141) << 2);
+ val += (vp56_rac_get_prob(c, 134) << 1);
+ val += vp56_rac_get_prob(c, 130);
+ } else {
+ val = 67;
+ if (!is8bitsperpixel) {
+ if (bpp == 12) {
+ val += vp56_rac_get_prob(c, 255) << 17;
+ val += vp56_rac_get_prob(c, 255) << 16;
+ }
+ val += (vp56_rac_get_prob(c, 255) << 15);
+ val += (vp56_rac_get_prob(c, 255) << 14);
+ }
+ val += (vp56_rac_get_prob(c, 254) << 13);
+ val += (vp56_rac_get_prob(c, 254) << 12);
+ val += (vp56_rac_get_prob(c, 254) << 11);
+ val += (vp56_rac_get_prob(c, 252) << 10);
+ val += (vp56_rac_get_prob(c, 249) << 9);
+ val += (vp56_rac_get_prob(c, 243) << 8);
+ val += (vp56_rac_get_prob(c, 230) << 7);
+ val += (vp56_rac_get_prob(c, 196) << 6);
+ val += (vp56_rac_get_prob(c, 177) << 5);
+ val += (vp56_rac_get_prob(c, 153) << 4);
+ val += (vp56_rac_get_prob(c, 140) << 3);
+ val += (vp56_rac_get_prob(c, 133) << 2);
+ val += (vp56_rac_get_prob(c, 130) << 1);
+ val += vp56_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)((vp8_rac_get(c) ? -val : val) * (unsigned)qmul[!!i]) / 2);
+ else
+ STORE_COEF(coef, rc, (vp8_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],
+ uint8_t (*p)[6][11], int nnz, const int16_t *scan,
+ const int16_t (*nb)[2], const int16_t *band_counts,
+ 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],
+ uint8_t (*p)[6][11], int nnz, const int16_t *scan,
+ const int16_t (*nb)[2], const int16_t *band_counts,
+ 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],
+ uint8_t (*p)[6][11], int nnz, const int16_t *scan,
+ const int16_t (*nb)[2], const int16_t *band_counts,
+ 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],
+ uint8_t (*p)[6][11], int nnz, const int16_t *scan,
+ const int16_t (*nb)[2], const int16_t *band_counts,
+ 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)
+{
+ VP9Context *s = td->s;
+ VP9Block *b = td->b;
+ int row = td->row, col = td->col;
+ 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;
+ 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)
+{
+ 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 (!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);
+ }
+}
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-10 08:23:48 +0000