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vpx/vp9/decoder/vp9_decodemv.c
hui su e18b104462 Palette experiment: adaptly update probs 
Also make changes to transmit palette-enabled flag using
neighbor blocks as context.

on screen_content
--enable-palette                            +7.35%

on derflr
with all other experiments                  +6.05%

Change-Id: Id6c2f726d21913d54a3f86ecfea474a4044c27f6
2015-03-25 09:12:57 -07:00

1533 lines
53 KiB
C
Raw Blame History

/*
Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <assert.h>
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_entropy.h"
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_entropymv.h"
#include "vp9/common/vp9_mvref_common.h"
#if CONFIG_PALETTE
#include "vp9/common/vp9_palette.h"
#endif
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/decoder/vp9_decodemv.h"
#include "vp9/decoder/vp9_decodeframe.h"
#include "vp9/decoder/vp9_reader.h"
static PREDICTION_MODE read_intra_mode(vp9_reader *r, const vp9_prob *p) {
return (PREDICTION_MODE)vp9_read_tree(r, vp9_intra_mode_tree, p);
}
static PREDICTION_MODE read_intra_mode_y(VP9_COMMON *cm, vp9_reader *r,
int size_group) {
const PREDICTION_MODE y_mode =
read_intra_mode(r, cm->fc.y_mode_prob[size_group]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.y_mode[size_group][y_mode];
return y_mode;
}
static PREDICTION_MODE read_intra_mode_uv(VP9_COMMON *cm, vp9_reader *r,
PREDICTION_MODE y_mode) {
const PREDICTION_MODE uv_mode = read_intra_mode(r,
cm->fc.uv_mode_prob[y_mode]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.uv_mode[y_mode][uv_mode];
return uv_mode;
}
#if CONFIG_COMPOUND_MODES
static PREDICTION_MODE read_inter_compound_mode(VP9_COMMON *cm, vp9_reader *r,
int ctx) {
int mode = 0;
mode = vp9_read_tree(r, vp9_inter_compound_mode_tree,
cm->fc.inter_compound_mode_probs[ctx]);
if (!cm->frame_parallel_decoding_mode) {
++cm->counts.inter_compound_mode[ctx][mode];
}
assert(is_inter_compound_mode(NEAREST_NEARESTMV + mode));
return NEAREST_NEARESTMV + mode;
}
#endif
static PREDICTION_MODE read_inter_mode(VP9_COMMON *cm, vp9_reader *r,
int ctx) {
const int mode = vp9_read_tree(r, vp9_inter_mode_tree,
cm->fc.inter_mode_probs[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.inter_mode[ctx][mode];
return NEARESTMV + mode;
}
#if CONFIG_COPY_MODE
static COPY_MODE read_copy_mode(VP9_COMMON *cm, vp9_reader *r,
int num_candidate, int ctx) {
COPY_MODE mode;
switch (num_candidate) {
case 0:
assert(0);
break;
case 1:
mode = REF0;
break;
case 2:
mode = REF0 + vp9_read_tree(r, vp9_copy_mode_tree_l2,
cm->fc.copy_mode_probs_l2[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.copy_mode_l2[ctx][mode - REF0];
break;
default:
mode = REF0 + vp9_read_tree(r, vp9_copy_mode_tree,
cm->fc.copy_mode_probs[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.copy_mode[ctx][mode - REF0];
break;
}
return mode;
}
#endif // CONFIG_COPY_MODE
static int read_segment_id(vp9_reader *r, const struct segmentation *seg) {
return vp9_read_tree(r, vp9_segment_tree, seg->tree_probs);
}
static TX_SIZE read_selected_tx_size(VP9_COMMON *cm, MACROBLOCKD *xd,
TX_SIZE max_tx_size, vp9_reader *r) {
const int ctx = vp9_get_tx_size_context(xd);
const vp9_prob *tx_probs = get_tx_probs(max_tx_size, ctx, &cm->fc.tx_probs);
int tx_size = vp9_read(r, tx_probs[0]);
if (tx_size != TX_4X4 && max_tx_size >= TX_16X16) {
tx_size += vp9_read(r, tx_probs[1]);
if (tx_size != TX_8X8 && max_tx_size >= TX_32X32) {
tx_size += vp9_read(r, tx_probs[2]);
#if CONFIG_TX64X64
if (tx_size != TX_16X16 && max_tx_size >= TX_64X64) {
tx_size += vp9_read(r, tx_probs[3]);
}
#endif
}
}
if (!cm->frame_parallel_decoding_mode)
++get_tx_counts(max_tx_size, ctx, &cm->counts.tx)[tx_size];
return (TX_SIZE)tx_size;
}
static TX_SIZE read_tx_size(VP9_COMMON *cm, MACROBLOCKD *xd, TX_MODE tx_mode,
BLOCK_SIZE bsize, int allow_select, vp9_reader *r) {
const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
if (allow_select && tx_mode == TX_MODE_SELECT && bsize >= BLOCK_8X8)
return read_selected_tx_size(cm, xd, max_tx_size, r);
else
return MIN(max_tx_size, tx_mode_to_biggest_tx_size[tx_mode]);
}
static void set_segment_id(VP9_COMMON *cm, BLOCK_SIZE bsize,
int mi_row, int mi_col, int segment_id) {
const int mi_offset = mi_row * cm->mi_cols + mi_col;
const int bw = num_8x8_blocks_wide_lookup[bsize];
const int bh = num_8x8_blocks_high_lookup[bsize];
const int xmis = MIN(cm->mi_cols - mi_col, bw);
const int ymis = MIN(cm->mi_rows - mi_row, bh);
int x, y;
assert(segment_id >= 0 && segment_id < MAX_SEGMENTS);
for (y = 0; y < ymis; y++)
for (x = 0; x < xmis; x++)
cm->last_frame_seg_map[mi_offset + y * cm->mi_cols + x] = segment_id;
}
static int read_intra_segment_id(VP9_COMMON *const cm, MACROBLOCKD *const xd,
int mi_row, int mi_col,
vp9_reader *r) {
struct segmentation *const seg = &cm->seg;
const BLOCK_SIZE bsize = xd->mi[0].src_mi->mbmi.sb_type;
int segment_id;
if (!seg->enabled)
return 0; // Default for disabled segmentation
if (!seg->update_map)
return 0;
segment_id = read_segment_id(r, seg);
set_segment_id(cm, bsize, mi_row, mi_col, segment_id);
return segment_id;
}
static int read_inter_segment_id(VP9_COMMON *const cm, MACROBLOCKD *const xd,
int mi_row, int mi_col, vp9_reader *r) {
struct segmentation *const seg = &cm->seg;
MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->mbmi;
const BLOCK_SIZE bsize = mbmi->sb_type;
int predicted_segment_id, segment_id;
if (!seg->enabled)
return 0; // Default for disabled segmentation
predicted_segment_id = vp9_get_segment_id(cm, cm->last_frame_seg_map,
bsize, mi_row, mi_col);
if (!seg->update_map)
return predicted_segment_id;
if (seg->temporal_update) {
const vp9_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd);
mbmi->seg_id_predicted = vp9_read(r, pred_prob);
segment_id = mbmi->seg_id_predicted ? predicted_segment_id
: read_segment_id(r, seg);
} else {
segment_id = read_segment_id(r, seg);
}
set_segment_id(cm, bsize, mi_row, mi_col, segment_id);
return segment_id;
}
static int read_skip(VP9_COMMON *cm, const MACROBLOCKD *xd,
int segment_id, vp9_reader *r) {
if (vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
return 1;
} else {
const int ctx = vp9_get_skip_context(xd);
const int skip = vp9_read(r, cm->fc.skip_probs[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.skip[ctx][skip];
return skip;
}
}
static void read_intra_frame_mode_info(VP9_COMMON *const cm,
MACROBLOCKD *const xd,
int mi_row, int mi_col, vp9_reader *r) {
MODE_INFO *const mi = xd->mi[0].src_mi;
MB_MODE_INFO *const mbmi = &mi->mbmi;
const MODE_INFO *above_mi = xd->mi[-cm->mi_stride].src_mi;
const MODE_INFO *left_mi = xd->left_available ? xd->mi[-1].src_mi : NULL;
const BLOCK_SIZE bsize = mbmi->sb_type;
int i;
mbmi->segment_id = read_intra_segment_id(cm, xd, mi_row, mi_col, r);
mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r);
#if CONFIG_PALETTE
if (bsize >= BLOCK_8X8 && cm->allow_palette_mode) {
int palette_ctx = 0;
if (above_mi)
palette_ctx += (above_mi->mbmi.palette_enabled[0] == 1);
if (left_mi)
palette_ctx += (left_mi->mbmi.palette_enabled[0] == 1);
mbmi->palette_enabled[0] =
vp9_read(r,
cm->fc.palette_enabled_prob[bsize - BLOCK_8X8][palette_ctx]);
mbmi->palette_enabled[1] =
vp9_read(r, cm->fc.palette_uv_enabled_prob[mbmi->palette_enabled[0]]);
} else {
mbmi->palette_enabled[0] = 0;
mbmi->palette_enabled[1] = 0;
}
if (mbmi->palette_enabled[0]) {
int i, m1, m2, d, val;
int rows = 4 * num_4x4_blocks_high_lookup[bsize];
int cols = 4 * num_4x4_blocks_wide_lookup[bsize];
PALETTE_RUN_LENGTH bits;
mbmi->mode = DC_PRED;
mbmi->palette_size[0] =
vp9_read_tree(r, vp9_palette_size_tree,
cm->fc.palette_size_prob[bsize - BLOCK_8X8]);
mbmi->palette_size[0] += 2;
if ((xd->plane[1].subsampling_x && xd->plane[1].subsampling_y)
|| !mbmi->palette_enabled[1])
mbmi->palette_indexed_size =
vp9_decode_uniform(r, MIN(mbmi->palette_size[0] + 1, 8));
else
mbmi->palette_indexed_size = 0;
mbmi->palette_literal_size = mbmi->palette_size[0] -
mbmi->palette_indexed_size;
if (PALETTE_DELTA_BIT)
mbmi->palette_delta_bitdepth =
vp9_read_literal(r, PALETTE_DELTA_BIT);
else
mbmi->palette_delta_bitdepth = 0;
mbmi->palette_run_length[0] =
vp9_read_literal(r, get_bit_depth(palette_max_run(bsize)));
mbmi->palette_run_length[0] = (mbmi->palette_run_length[0]) << 1;
mbmi->palette_scan_order[0] =
vp9_read_tree(r, vp9_palette_scan_order_tree,
cm->fc.palette_scan_order_prob[bsize - BLOCK_8X8]);
m1 = mbmi->palette_indexed_size;
m2 = mbmi->palette_literal_size;
if (m1 > 0) {
for (i = 0; i < m1; i++)
mbmi->palette_indexed_colors[i] =
vp9_read_literal(r, get_bit_depth(cm->current_palette_size));
if (mbmi->palette_delta_bitdepth > 0) {
int s;
for (i = 0; i < m1; i++) {
s = vp9_read_bit(r);
s = 1 - 2 * s;
mbmi->palette_color_delta[i] =
s * vp9_read_literal(r, mbmi->palette_delta_bitdepth);
}
} else {
vpx_memset(mbmi->palette_color_delta, 0,
m1 * sizeof(mbmi->palette_color_delta[0]));
}
for (i = 0; i < m1; i++) {
val = cm->current_palette_colors[mbmi->palette_indexed_colors[i]];
if (mbmi->palette_color_delta[i])
val += mbmi->palette_color_delta[i];
mbmi->palette_colors[i] = val;
}
}
if (m2 > 0) {
for (i = 0; i < m2; i++) {
mbmi->palette_literal_colors[i] = vp9_read_literal(r, 8);
mbmi->palette_colors[m1 + i] = mbmi->palette_literal_colors[i];
}
}
d = get_bit_depth(rows * cols);
for (i = 0; i < mbmi->palette_run_length[0]; i += 2) {
mbmi->palette_runs[i] =
vp9_read_literal(r, get_bit_depth(m1 + m2));
bits = vp9_read_tree(r, vp9_palette_run_length_tree,
cm->fc.palette_run_length_prob[bsize - BLOCK_8X8]);
if (bits == MAX_BITS)
mbmi->palette_runs[i + 1] = vp9_read_literal(r, d);
else
mbmi->palette_runs[i + 1] = vp9_read_literal(r, bits - ONE_BITS + 1);
mbmi->palette_runs[i + 1] += 1;
}
palette_color_insertion(cm->current_palette_colors,
&cm ->current_palette_size,
cm->current_palette_count, mbmi);
run_lengh_decoding(mbmi->palette_runs, mbmi->palette_run_length[0],
xd->palette_map_buffer);
palette_iscan(xd->plane[0].color_index_map, xd->palette_map_buffer,
rows, cols, mbmi->palette_scan_order[0],
xd->palette_scan_buffer);
mbmi->tx_size = MIN(max_txsize_lookup[bsize],
tx_mode_to_biggest_tx_size[cm->tx_mode]);
}
if (mbmi->palette_enabled[1]) {
int i, d;
int rows = 4 * num_4x4_blocks_high_lookup[bsize] >>
xd->plane[1].subsampling_y;
int cols = 4 * num_4x4_blocks_wide_lookup[bsize] >>
xd->plane[1].subsampling_x;
PALETTE_RUN_LENGTH bits;
BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, &xd->plane[1]);
mbmi->uv_mode = DC_PRED;
if (xd->plane[1].subsampling_x && xd->plane[1].subsampling_y) {
mbmi->palette_size[1] =
vp9_read_tree(r, vp9_palette_size_tree,
cm->fc.palette_uv_size_prob[bsize - BLOCK_8X8]);
mbmi->palette_size[1] += 2;
mbmi->palette_run_length[1] =
vp9_read_literal(r, get_bit_depth(palette_max_run(uv_bsize)));
mbmi->palette_run_length[1] = (mbmi->palette_run_length[1]) << 1;
mbmi->palette_scan_order[1] =
vp9_read_tree(r, vp9_palette_scan_order_tree,
cm->fc.palette_uv_scan_order_prob[bsize - BLOCK_8X8]);
} else {
mbmi->palette_size[1] = mbmi->palette_size[0];
}
for (i = 0; i < mbmi->palette_size[1]; i++)
mbmi->palette_colors[PALETTE_MAX_SIZE + i] = vp9_read_literal(r, 8);
for (i = 0; i < mbmi->palette_size[1]; i++)
mbmi->palette_colors[2 * PALETTE_MAX_SIZE + i] = vp9_read_literal(r, 8);
if (xd->plane[1].subsampling_x && xd->plane[1].subsampling_y) {
d = get_bit_depth(rows * cols);
for (i = 0; i < mbmi->palette_run_length[1]; i += 2) {
mbmi->palette_runs[PALETTE_MAX_RUNS + i] =
vp9_read_literal(r, get_bit_depth(mbmi->palette_size[1]));
bits = vp9_read_tree(r, vp9_palette_run_length_tree,
cm->fc.
palette_uv_run_length_prob[bsize - BLOCK_8X8]);
if (bits == MAX_BITS)
mbmi->palette_runs[PALETTE_MAX_RUNS + i + 1] = vp9_read_literal(r, d);
else
mbmi->palette_runs[PALETTE_MAX_RUNS + i + 1] =
vp9_read_literal(r, bits - ONE_BITS + 1);
mbmi->palette_runs[ PALETTE_MAX_RUNS + i + 1] += 1;
}
run_lengh_decoding(mbmi->palette_runs + PALETTE_MAX_RUNS,
mbmi->palette_run_length[1], xd->palette_map_buffer);
palette_iscan(xd->plane[1].color_index_map, xd->palette_map_buffer, rows,
cols, mbmi->palette_scan_order[1], xd->palette_scan_buffer);
}
}
if (!mbmi->palette_enabled[0]) {
mbmi->tx_size = read_tx_size(cm, xd, cm->tx_mode, bsize, 1, r);
}
#else
mbmi->tx_size = read_tx_size(cm, xd, cm->tx_mode, bsize, 1, r);
#endif
mbmi->ref_frame[0] = INTRA_FRAME;
mbmi->ref_frame[1] = NONE;
#if CONFIG_TX_SKIP
if (mbmi->sb_type >= BLOCK_8X8) {
int q_idx = vp9_get_qindex(&cm->seg, mbmi->segment_id, cm->base_qindex);
int try_tx_skip = q_idx <= TX_SKIP_Q_THRESH_INTRA;
if (try_tx_skip) {
if (xd->lossless) {
if (mbmi->tx_size == TX_4X4)
mbmi->tx_skip[0] = vp9_read(r, cm->fc.y_tx_skip_prob[0]);
else
mbmi->tx_skip[0] = 1;
if (get_uv_tx_size(mbmi, &xd->plane[1]) == TX_4X4)
mbmi->tx_skip[1] =
vp9_read(r, cm->fc.uv_tx_skip_prob[mbmi->tx_skip[0]]);
else
mbmi->tx_skip[1] = 1;
} else {
mbmi->tx_skip[0] = vp9_read(r, cm->fc.y_tx_skip_prob[0]);
mbmi->tx_skip[1] =
vp9_read(r, cm->fc.uv_tx_skip_prob[mbmi->tx_skip[0]]);
}
} else {
mbmi->tx_skip[0] = 0;
mbmi->tx_skip[1] = 0;
}
} else {
mbmi->tx_skip[0] = 0;
mbmi->tx_skip[1] = 0;
}
#endif
switch (bsize) {
case BLOCK_4X4:
#if CONFIG_FILTERINTRA
for (i = 0; i < 4; ++i) {
#else
for (i = 0; i < 4; ++i)
#endif
mi->bmi[i].as_mode =
read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, i));
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[i].as_mode))
mi->b_filter_info[i] =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[i].as_mode]);
else
mi->b_filter_info[i] = 0;
}
mbmi->filterbit = mi->b_filter_info[3];
#endif
mbmi->mode = mi->bmi[3].as_mode;
break;
case BLOCK_4X8:
mi->bmi[0].as_mode = mi->bmi[2].as_mode =
read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, 0));
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[0].as_mode))
mi->b_filter_info[0] = mi->b_filter_info[2] =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[0].as_mode]);
else
mi->b_filter_info[0] = mi->b_filter_info[2] = 0;
#endif
mi->bmi[1].as_mode = mi->bmi[3].as_mode = mbmi->mode =
read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, 1));
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[1].as_mode))
mi->b_filter_info[1] = mi->b_filter_info[3] = mbmi->filterbit =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[1].as_mode]);
else
mi->b_filter_info[1] = mi->b_filter_info[3] = mbmi->filterbit = 0;
#endif
break;
case BLOCK_8X4:
mi->bmi[0].as_mode = mi->bmi[1].as_mode =
read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, 0));
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[0].as_mode))
mi->b_filter_info[0] = mi->b_filter_info[1] =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[0].as_mode]);
else
mi->b_filter_info[0] = mi->b_filter_info[1] = 0;
#endif
mi->bmi[2].as_mode = mi->bmi[3].as_mode = mbmi->mode =
read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, 2));
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[2].as_mode))
mi->b_filter_info[2] = mi->b_filter_info[3] = mbmi->filterbit =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[2].as_mode]);
else
mi->b_filter_info[2] = mi->b_filter_info[3] = mbmi->filterbit = 0;
#endif
break;
default:
#if CONFIG_PALETTE
if (!mbmi->palette_enabled[0])
mbmi->mode = read_intra_mode(r,
get_y_mode_probs(mi, above_mi, left_mi, 0));
#else
mbmi->mode = read_intra_mode(r,
get_y_mode_probs(mi, above_mi, left_mi, 0));
#endif // CONFIG_PALETTE
#if CONFIG_FILTERINTRA
if (is_filter_enabled(mbmi->tx_size) && is_filter_allowed(mbmi->mode)
#if CONFIG_PALETTE
&& !mbmi->palette_enabled[0]
#endif // CONFIG_PALETTE
)
mbmi->filterbit = vp9_read(r,
cm->fc.filterintra_prob[mbmi->tx_size][mbmi->mode]);
else
mbmi->filterbit = 0;
#endif // CONFIG_FILTERINTRA
}
#if CONFIG_PALETTE
if (!mbmi->palette_enabled[1])
mbmi->uv_mode = read_intra_mode(r, vp9_kf_uv_mode_prob[mbmi->mode]);
#else
mbmi->uv_mode = read_intra_mode(r, vp9_kf_uv_mode_prob[mbmi->mode]);
#endif
#if CONFIG_FILTERINTRA
if (is_filter_enabled(get_uv_tx_size(mbmi, &xd->plane[1])) &&
is_filter_allowed(mbmi->uv_mode)
#if CONFIG_PALETTE
&& !mbmi->palette_enabled[1]
#endif // CONFIG_PALETTE
)
mbmi->uv_filterbit = vp9_read(r,
cm->fc.filterintra_prob[get_uv_tx_size(mbmi, &xd->plane[1])][mbmi->uv_mode]);
else
mbmi->uv_filterbit = 0;
#endif
}
static int read_mv_component(vp9_reader *r,
const nmv_component *mvcomp, int usehp) {
int mag, d, fr, hp;
const int sign = vp9_read(r, mvcomp->sign);
const int mv_class = vp9_read_tree(r, vp9_mv_class_tree, mvcomp->classes);
const int class0 = mv_class == MV_CLASS_0;
// Integer part
if (class0) {
d = vp9_read_tree(r, vp9_mv_class0_tree, mvcomp->class0);
} else {
int i;
const int n = mv_class + CLASS0_BITS - 1; // number of bits
d = 0;
for (i = 0; i < n; ++i)
d |= vp9_read(r, mvcomp->bits[i]) << i;
}
// Fractional part
fr = vp9_read_tree(r, vp9_mv_fp_tree, class0 ? mvcomp->class0_fp[d]
: mvcomp->fp);
// High precision part (if hp is not used, the default value of the hp is 1)
hp = usehp ? vp9_read(r, class0 ? mvcomp->class0_hp : mvcomp->hp)
: 1;
// Result
mag = vp9_get_mv_mag(mv_class, (d << 3) | (fr << 1) | hp) + 1;
return sign ? -mag : mag;
}
static INLINE void read_mv(vp9_reader *r, MV *mv, const MV *ref,
const nmv_context *ctx,
nmv_context_counts *counts, int allow_hp) {
const MV_JOINT_TYPE joint_type =
(MV_JOINT_TYPE)vp9_read_tree(r, vp9_mv_joint_tree, ctx->joints);
const int use_hp = allow_hp && vp9_use_mv_hp(ref);
MV diff = {0, 0};
if (mv_joint_vertical(joint_type))
diff.row = read_mv_component(r, &ctx->comps[0], use_hp);
if (mv_joint_horizontal(joint_type))
diff.col = read_mv_component(r, &ctx->comps[1], use_hp);
vp9_inc_mv(&diff, counts);
mv->row = ref->row + diff.row;
mv->col = ref->col + diff.col;
}
static REFERENCE_MODE read_block_reference_mode(VP9_COMMON *cm,
const MACROBLOCKD *xd,
vp9_reader *r) {
if (cm->reference_mode == REFERENCE_MODE_SELECT) {
const int ctx = vp9_get_reference_mode_context(cm, xd);
const REFERENCE_MODE mode =
(REFERENCE_MODE)vp9_read(r, cm->fc.comp_inter_prob[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.comp_inter[ctx][mode];
return mode; // SINGLE_REFERENCE or COMPOUND_REFERENCE
} else {
return cm->reference_mode;
}
}
// Read the referncence frame
static void read_ref_frames(VP9_COMMON *const cm, MACROBLOCKD *const xd,
vp9_reader *r,
int segment_id, MV_REFERENCE_FRAME ref_frame[2]) {
FRAME_CONTEXT *const fc = &cm->fc;
FRAME_COUNTS *const counts = &cm->counts;
if (vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
ref_frame[0] = (MV_REFERENCE_FRAME)vp9_get_segdata(&cm->seg, segment_id,
SEG_LVL_REF_FRAME);
ref_frame[1] = NONE;
} else {
const REFERENCE_MODE mode = read_block_reference_mode(cm, xd, r);
// FIXME(rbultje) I'm pretty sure this breaks segmentation ref frame coding
if (mode == COMPOUND_REFERENCE) {
const int idx = cm->ref_frame_sign_bias[cm->comp_fixed_ref];
const int ctx = vp9_get_pred_context_comp_ref_p(cm, xd);
const int bit = vp9_read(r, fc->comp_ref_prob[ctx]);
if (!cm->frame_parallel_decoding_mode)
++counts->comp_ref[ctx][bit];
ref_frame[idx] = cm->comp_fixed_ref;
ref_frame[!idx] = cm->comp_var_ref[bit];
} else if (mode == SINGLE_REFERENCE) {
const int ctx0 = vp9_get_pred_context_single_ref_p1(xd);
const int bit0 = vp9_read(r, fc->single_ref_prob[ctx0][0]);
if (!cm->frame_parallel_decoding_mode)
++counts->single_ref[ctx0][0][bit0];
if (bit0) {
const int ctx1 = vp9_get_pred_context_single_ref_p2(xd);
const int bit1 = vp9_read(r, fc->single_ref_prob[ctx1][1]);
if (!cm->frame_parallel_decoding_mode)
++counts->single_ref[ctx1][1][bit1];
ref_frame[0] = bit1 ? ALTREF_FRAME : GOLDEN_FRAME;
} else {
ref_frame[0] = LAST_FRAME;
}
ref_frame[1] = NONE;
} else {
assert(0 && "Invalid prediction mode.");
}
}
}
static INLINE INTERP_FILTER read_switchable_interp_filter(
VP9_COMMON *const cm, MACROBLOCKD *const xd, vp9_reader *r) {
const int ctx = vp9_get_pred_context_switchable_interp(xd);
const INTERP_FILTER type =
(INTERP_FILTER)vp9_read_tree(r, vp9_switchable_interp_tree,
cm->fc.switchable_interp_prob[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.switchable_interp[ctx][type];
return type;
}
static void read_intra_block_mode_info(VP9_COMMON *const cm, MODE_INFO *mi,
#if CONFIG_FILTERINTRA
MACROBLOCKD *const xd,
#endif
vp9_reader *r) {
MB_MODE_INFO *const mbmi = &mi->mbmi;
const BLOCK_SIZE bsize = mi->mbmi.sb_type;
int i;
mbmi->ref_frame[0] = INTRA_FRAME;
mbmi->ref_frame[1] = NONE;
switch (bsize) {
case BLOCK_4X4:
#if CONFIG_FILTERINTRA
for (i = 0; i < 4; ++i) {
#else
for (i = 0; i < 4; ++i)
#endif
mi->bmi[i].as_mode = read_intra_mode_y(cm, r, 0);
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[i].as_mode)) {
mi->b_filter_info[i] =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[i].as_mode]);
cm->counts.filterintra[0][mi->bmi[i].as_mode]
[mi->b_filter_info[i]]++;
} else {
mi->b_filter_info[i] = 0;
}
}
mbmi->filterbit = mi->b_filter_info[3];
#endif
mbmi->mode = mi->bmi[3].as_mode;
break;
case BLOCK_4X8:
mi->bmi[0].as_mode = mi->bmi[2].as_mode = read_intra_mode_y(cm, r, 0);
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[0].as_mode)) {
mi->b_filter_info[0] = mi->b_filter_info[2] =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[0].as_mode]);
cm->counts.filterintra[0][mi->bmi[0].as_mode][mi->b_filter_info[0]]++;
} else {
mi->b_filter_info[0] = mi->b_filter_info[2] = 0;
}
#endif
mi->bmi[1].as_mode = mi->bmi[3].as_mode = mbmi->mode =
read_intra_mode_y(cm, r, 0);
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[1].as_mode)) {
mi->b_filter_info[1] = mi->b_filter_info[3] = mbmi->filterbit =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[1].as_mode]);
cm->counts.filterintra[0][mi->bmi[1].as_mode][mi->b_filter_info[1]]++;
} else {
mi->b_filter_info[1] = mi->b_filter_info[3] = mbmi->filterbit = 0;
}
#endif
break;
case BLOCK_8X4:
mi->bmi[0].as_mode = mi->bmi[1].as_mode = read_intra_mode_y(cm, r, 0);
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[0].as_mode)) {
mi->b_filter_info[0] = mi->b_filter_info[1] =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[0].as_mode]);
cm->counts.filterintra[0][mi->bmi[0].as_mode][mi->b_filter_info[0]]++;
} else {
mi->b_filter_info[0] = mi->b_filter_info[1] = 0;
}
#endif
mi->bmi[2].as_mode = mi->bmi[3].as_mode = mbmi->mode =
read_intra_mode_y(cm, r, 0);
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mi->bmi[2].as_mode)) {
mi->b_filter_info[2] = mi->b_filter_info[3] = mbmi->filterbit =
vp9_read(r, cm->fc.filterintra_prob[0][mi->bmi[2].as_mode]);
cm->counts.filterintra[0][mi->bmi[2].as_mode][mi->b_filter_info[2]]++;
} else {
mi->b_filter_info[2] = mi->b_filter_info[3] = mbmi->filterbit = 0;
}
#endif
break;
default:
#if CONFIG_PALETTE
if (!mbmi->palette_enabled[0]) {
mbmi->mode = read_intra_mode_y(cm, r, size_group_lookup[bsize]);
} else {
mbmi->mode = DC_PRED;
if (!cm->frame_parallel_decoding_mode)
++cm->counts.y_mode[size_group_lookup[bsize]][DC_PRED];
}
#else
mbmi->mode = read_intra_mode_y(cm, r, size_group_lookup[bsize]);
#endif // CONFIG_PALETTE
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mbmi->mode) && is_filter_enabled(mbmi->tx_size)
#if CONFIG_PALETTE
&& !mbmi->palette_enabled[0]
#endif // CONFIG_PALETTE
) {
mbmi->filterbit = vp9_read(r,
cm->fc.filterintra_prob[mbmi->tx_size][mbmi->mode]);
cm->counts.filterintra[mbmi->tx_size][mbmi->mode][mbmi->filterbit]++;
} else {
mbmi->filterbit = 0;
#if CONFIG_PALETTE
if (mbmi->palette_enabled[0])
cm->counts.filterintra[mbmi->tx_size][mbmi->mode][mbmi->filterbit]++;
#endif // CONFIG_PALETTE
}
#endif // CONFIG_FILTERINTRA
}
#if CONFIG_PALETTE
if (!mbmi->palette_enabled[1]) {
mbmi->uv_mode = read_intra_mode_uv(cm, r, mbmi->mode);
} else {
mbmi->uv_mode = DC_PRED;
if (!cm->frame_parallel_decoding_mode)
++cm->counts.uv_mode[mbmi->mode][DC_PRED];
}
#else
mbmi->uv_mode = read_intra_mode_uv(cm, r, mbmi->mode);
#endif // CONFIG_PALETTE
#if CONFIG_FILTERINTRA
if (is_filter_allowed(mbmi->uv_mode) &&
is_filter_enabled(get_uv_tx_size(mbmi, &xd->plane[1]))
#if CONFIG_PALETTE
&& !mbmi->palette_enabled[1]
#endif // CONFIG_PALETTE
) {
mbmi->uv_filterbit = vp9_read(r,
cm->fc.filterintra_prob[get_uv_tx_size(mbmi, &xd->plane[1])][mbmi->uv_mode]);
cm->counts.filterintra[get_uv_tx_size(mbmi, &xd->plane[1])]
[mbmi->uv_mode][mbmi->uv_filterbit]++;
} else {
mbmi->uv_filterbit = 0;
#if CONFIG_PALETTE
if (mbmi->palette_enabled[1])
cm->counts.filterintra[get_uv_tx_size(mbmi, &xd->plane[1])]
[mbmi->uv_mode][mbmi->uv_filterbit]++;
#endif // CONFIG_PALETTE
}
#endif // CONFIG_FILTERINTRA
}
static INLINE int is_mv_valid(const MV *mv) {
return mv->row > MV_LOW && mv->row < MV_UPP &&
mv->col > MV_LOW && mv->col < MV_UPP;
}
static INLINE int assign_mv(VP9_COMMON *cm, PREDICTION_MODE mode,
int_mv mv[2], int_mv ref_mv[2],
int_mv nearest_mv[2], int_mv near_mv[2],
int is_compound, int allow_hp, vp9_reader *r) {
int i;
int ret = 1;
#if CONFIG_COMPOUND_MODES
assert(is_inter_mode(mode) || is_inter_compound_mode(mode));
#else
assert(is_inter_mode(mode));
#endif
switch (mode) {
case NEWMV: {
nmv_context_counts *const mv_counts = cm->frame_parallel_decoding_mode ?
NULL : &cm->counts.mv;
for (i = 0; i < 1 + is_compound; ++i) {
read_mv(r, &mv[i].as_mv, &ref_mv[i].as_mv, &cm->fc.nmvc, mv_counts,
allow_hp);
ret = ret && is_mv_valid(&mv[i].as_mv);
assert(ret);
}
break;
}
case NEARESTMV: {
mv[0].as_int = nearest_mv[0].as_int;
if (is_compound)
mv[1].as_int = nearest_mv[1].as_int;
break;
}
case NEARMV: {
mv[0].as_int = near_mv[0].as_int;
if (is_compound)
mv[1].as_int = near_mv[1].as_int;
break;
}
case ZEROMV: {
mv[0].as_int = 0;
if (is_compound)
mv[1].as_int = 0;
break;
}
#if CONFIG_COMPOUND_MODES
case NEW_NEWMV: {
nmv_context_counts *const mv_counts = cm->frame_parallel_decoding_mode ?
NULL : &cm->counts.mv;
assert(is_compound);
for (i = 0; i < 2; ++i) {
read_mv(r, &mv[i].as_mv, &ref_mv[i].as_mv, &cm->fc.nmvc, mv_counts,
allow_hp);
ret = ret && is_mv_valid(&mv[i].as_mv);
}
break;
}
case NEAREST_NEARESTMV: {
assert(is_compound);
mv[0].as_int = nearest_mv[0].as_int;
mv[1].as_int = nearest_mv[1].as_int;
break;
}
case NEAREST_NEARMV: {
assert(is_compound);
mv[0].as_int = nearest_mv[0].as_int;
mv[1].as_int = near_mv[1].as_int;
break;
}
case NEAR_NEARESTMV: {
assert(is_compound);
mv[0].as_int = near_mv[0].as_int;
mv[1].as_int = nearest_mv[1].as_int;
break;
}
case NEW_NEARESTMV: {
nmv_context_counts *const mv_counts = cm->frame_parallel_decoding_mode ?
NULL : &cm->counts.mv;
assert(is_compound);
read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, &cm->fc.nmvc, mv_counts,
allow_hp);
ret = ret && is_mv_valid(&mv[0].as_mv);
mv[1].as_int = nearest_mv[1].as_int;
break;
}
case NEAREST_NEWMV: {
nmv_context_counts *const mv_counts = cm->frame_parallel_decoding_mode ?
NULL : &cm->counts.mv;
assert(is_compound);
mv[0].as_int = nearest_mv[0].as_int;
read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, &cm->fc.nmvc, mv_counts,
allow_hp);
ret = ret && is_mv_valid(&mv[1].as_mv);
break;
}
case NEAR_NEWMV: {
nmv_context_counts *const mv_counts = cm->frame_parallel_decoding_mode ?
NULL : &cm->counts.mv;
assert(is_compound);
mv[0].as_int = near_mv[0].as_int;
read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, &cm->fc.nmvc, mv_counts,
allow_hp);
ret = ret && is_mv_valid(&mv[1].as_mv);
break;
}
case NEW_NEARMV: {
nmv_context_counts *const mv_counts = cm->frame_parallel_decoding_mode ?
NULL : &cm->counts.mv;
assert(is_compound);
read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, &cm->fc.nmvc, mv_counts,
allow_hp);
ret = ret && is_mv_valid(&mv[0].as_mv);
mv[1].as_int = near_mv[1].as_int;
break;
}
case ZERO_ZEROMV: {
assert(is_compound);
mv[0].as_int = 0;
mv[1].as_int = 0;
break;
}
#endif // CONFIG_COMPOUND_MODES
default: {
return 0;
}
}
return ret;
}
static int read_is_inter_block(VP9_COMMON *const cm, MACROBLOCKD *const xd,
int segment_id, vp9_reader *r) {
if (vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
return vp9_get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME) !=
INTRA_FRAME;
} else {
const int ctx = vp9_get_intra_inter_context(xd);
const int is_inter = vp9_read(r, cm->fc.intra_inter_prob[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.intra_inter[ctx][is_inter];
return is_inter;
}
}
static void read_inter_block_mode_info(VP9_COMMON *const cm,
MACROBLOCKD *const xd,
const TileInfo *const tile,
MODE_INFO *const mi,
#if CONFIG_SUPERTX
int supertx_enabled,
#endif
int mi_row, int mi_col, vp9_reader *r) {
MB_MODE_INFO *const mbmi = &mi->mbmi;
const BLOCK_SIZE bsize = mbmi->sb_type;
const int allow_hp = cm->allow_high_precision_mv;
int_mv nearestmv[2], nearmv[2];
int inter_mode_ctx, ref, is_compound;
#if CONFIG_SUPERTX
(void) supertx_enabled;
#endif
#if CONFIG_COPY_MODE
if (mbmi->copy_mode == NOREF)
#endif
read_ref_frames(cm, xd, r, mbmi->segment_id, mbmi->ref_frame);
is_compound = has_second_ref(mbmi);
for (ref = 0; ref < 1 + is_compound; ++ref) {
const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
RefBuffer *ref_buf = &cm->frame_refs[frame - LAST_FRAME];
xd->block_refs[ref] = ref_buf;
if ((!vp9_is_valid_scale(&ref_buf->sf)))
vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
"Reference frame has invalid dimensions");
if (ref_buf->buf->corrupted)
vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
"Block reference is corrupt");
vp9_setup_pre_planes(xd, ref, ref_buf->buf, mi_row, mi_col,
&ref_buf->sf);
#if CONFIG_COPY_MODE
if (mbmi->copy_mode == NOREF)
#endif
vp9_find_mv_refs(cm, xd, tile, mi, frame, mbmi->ref_mvs[frame],
mi_row, mi_col);
}
#if CONFIG_COPY_MODE
if (mbmi->copy_mode != NOREF)
return;
#endif
inter_mode_ctx = mbmi->mode_context[mbmi->ref_frame[0]];
if (vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
mbmi->mode = ZEROMV;
if (bsize < BLOCK_8X8) {
vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
"Invalid usage of segement feature on small blocks");
return;
}
} else {
if (bsize >= BLOCK_8X8) {
#if CONFIG_COMPOUND_MODES
if (is_compound) {
mbmi->mode = read_inter_compound_mode(cm, r, inter_mode_ctx);
} else {
mbmi->mode = read_inter_mode(cm, r, inter_mode_ctx);
}
#else
mbmi->mode = read_inter_mode(cm, r, inter_mode_ctx);
#endif
}
}
#if CONFIG_COMPOUND_MODES
if (bsize < BLOCK_8X8 ||
(mbmi->mode != ZEROMV && mbmi->mode != ZERO_ZEROMV)) {
#else
if (bsize < BLOCK_8X8 || mbmi->mode != ZEROMV) {
#endif
for (ref = 0; ref < 1 + is_compound; ++ref) {
vp9_find_best_ref_mvs(xd, allow_hp, mbmi->ref_mvs[mbmi->ref_frame[ref]],
&nearestmv[ref], &nearmv[ref]);
}
}
mbmi->interp_filter = (cm->interp_filter == SWITCHABLE)
? read_switchable_interp_filter(cm, xd, r)
: cm->interp_filter;
#if CONFIG_INTERINTRA
if (is_interintra_allowed(bsize) &&
is_inter_mode(mbmi->mode) &&
#if CONFIG_SUPERTX
!supertx_enabled &&
#endif
mbmi->ref_frame[1] <= INTRA_FRAME) {
mbmi->ref_frame[1] = vp9_read(r, cm->fc.interintra_prob[bsize]) ?
INTRA_FRAME : NONE;
cm->counts.interintra[bsize][mbmi->ref_frame[1] == INTRA_FRAME]++;
#if CONFIG_WEDGE_PARTITION
mbmi->use_wedge_interintra = 0;
#endif // CONFIG_WEDGE_PARTITION
if (mbmi->ref_frame[1] == INTRA_FRAME) {
mbmi->interintra_mode =
read_intra_mode_y(cm, r, size_group_lookup[bsize]);
mbmi->interintra_uv_mode = mbmi->interintra_mode;
#if CONFIG_WEDGE_PARTITION
if (get_wedge_bits(bsize)) {
mbmi->use_wedge_interintra = vp9_read(
r, cm->fc.wedge_interintra_prob[bsize]);
cm->counts.wedge_interintra[bsize][mbmi->use_wedge_interintra]++;
if (mbmi->use_wedge_interintra) {
mbmi->interintra_wedge_index = vp9_read_literal(
r, get_wedge_bits(bsize));
mbmi->interintra_uv_wedge_index = mbmi->interintra_wedge_index;
}
}
#endif // CONFIG_WEDGE_PARTITION
}
}
#endif // CONFIG_INTERINTRA
if (bsize < BLOCK_8X8) {
const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; // 1 or 2
const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; // 1 or 2
int idx, idy;
PREDICTION_MODE b_mode;
int_mv nearest_sub8x8[2], near_sub8x8[2];
#if CONFIG_NEWMVREF_SUB8X8
int_mv ref_mv[2];
#endif // CONFIG_NEWMVREF_SUB8X8
for (idy = 0; idy < 2; idy += num_4x4_h) {
for (idx = 0; idx < 2; idx += num_4x4_w) {
int_mv block[2];
const int j = idy * 2 + idx;
#if CONFIG_COMPOUND_MODES
if (is_compound) {
b_mode = read_inter_compound_mode(cm, r, inter_mode_ctx);
} else {
b_mode = read_inter_mode(cm, r, inter_mode_ctx);
}
#else
b_mode = read_inter_mode(cm, r, inter_mode_ctx);
#endif
#if CONFIG_COMPOUND_MODES
if (b_mode == NEARESTMV || b_mode == NEARMV ||
#if CONFIG_NEWMVREF_SUB8X8
b_mode == NEWMV || b_mode == NEW_NEWMV ||
#endif // CONFIG_NEWMVREF_SUB8X8
b_mode == NEAREST_NEARESTMV || b_mode == NEAREST_NEARMV ||
b_mode == NEAR_NEARESTMV || b_mode == NEAREST_NEWMV ||
b_mode == NEW_NEARESTMV || b_mode == NEAR_NEWMV ||
b_mode == NEW_NEARMV)
#else
if (b_mode == NEARESTMV || b_mode == NEARMV
#if CONFIG_NEWMVREF_SUB8X8
|| b_mode == NEWMV
#endif // CONFIG_NEWMVREF_SUB8X8
)
#endif // CONFIG_COMPOUND_MODES
{
for (ref = 0; ref < 1 + is_compound; ++ref) {
#if CONFIG_NEWMVREF_SUB8X8
int_mv mv_ref_list[MAX_MV_REF_CANDIDATES];
int_mv second_ref_mv;
vp9_update_mv_context(cm, xd, tile, mi, mbmi->ref_frame[ref],
mv_ref_list, j, mi_row, mi_col);
#endif // CONFIG_NEWMVREF_SUB8X8
vp9_append_sub8x8_mvs_for_idx(cm, xd, tile, j, ref, mi_row, mi_col,
#if CONFIG_NEWMVREF_SUB8X8
mv_ref_list,
#endif // CONFIG_NEWMVREF_SUB8X8
&nearest_sub8x8[ref],
&near_sub8x8[ref]);
#if CONFIG_NEWMVREF_SUB8X8
if (b_mode == NEWMV
#if CONFIG_COMPOUND_MODES
|| b_mode == NEW_NEWMV ||
b_mode == NEAREST_NEWMV ||
b_mode == NEW_NEARESTMV ||
b_mode == NEAR_NEWMV ||
b_mode == NEW_NEARMV
#endif // CONFIG_COMPOUND_MODES
) {
mv_ref_list[0].as_int = nearest_sub8x8[ref].as_int;
mv_ref_list[1].as_int = near_sub8x8[ref].as_int;
vp9_find_best_ref_mvs(xd, allow_hp, mv_ref_list,
&ref_mv[ref], &second_ref_mv);
}
#endif // CONFIG_NEWMVREF_SUB8X8
}
}
if (!assign_mv(cm, b_mode, block,
#if CONFIG_NEWMVREF_SUB8X8
ref_mv,
#else
nearestmv,
#endif // CONFIG_NEWMVREF_SUB8X8
nearest_sub8x8, near_sub8x8,
is_compound, allow_hp, r)) {
xd->corrupted |= 1;
break;
}
mi->bmi[j].as_mv[0].as_int = block[0].as_int;
if (is_compound)
mi->bmi[j].as_mv[1].as_int = block[1].as_int;
if (num_4x4_h == 2)
mi->bmi[j + 2] = mi->bmi[j];
if (num_4x4_w == 2)
mi->bmi[j + 1] = mi->bmi[j];
}
}
mi->mbmi.mode = b_mode;
mbmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int;
mbmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int;
} else {
xd->corrupted |= !assign_mv(cm, mbmi->mode, mbmi->mv, nearestmv,
nearestmv, nearmv, is_compound, allow_hp, r);
}
#if CONFIG_TX_SKIP
mbmi->uv_mode = mbmi->mode;
#endif
#if CONFIG_WEDGE_PARTITION
mbmi->use_wedge_interinter = 0;
if (cm->reference_mode != SINGLE_REFERENCE &&
#if CONFIG_COMPOUND_MODES
is_inter_compound_mode(mbmi->mode) &&
#endif // CONFIG_COMPOUND_MODES
get_wedge_bits(bsize) &&
mbmi->ref_frame[1] > INTRA_FRAME) {
mbmi->use_wedge_interinter =
vp9_read(r, cm->fc.wedge_interinter_prob[bsize]);
cm->counts.wedge_interinter[bsize][mbmi->use_wedge_interinter]++;
if (mbmi->use_wedge_interinter) {
mbmi->interinter_wedge_index = vp9_read_literal(r, get_wedge_bits(bsize));
}
}
#endif // CONFIG_WEDGE_PARTITION
}
static void read_inter_frame_mode_info(VP9_COMMON *const cm,
MACROBLOCKD *const xd,
const TileInfo *const tile,
#if CONFIG_SUPERTX
int supertx_enabled,
#endif
int mi_row, int mi_col, vp9_reader *r) {
MODE_INFO *const mi = xd->mi[0].src_mi;
MB_MODE_INFO *const mbmi = &mi->mbmi;
int inter_block;
#if CONFIG_COPY_MODE
int num_candidate = 0;
MB_MODE_INFO *inter_ref_list[18] = {NULL};
#endif
#if CONFIG_SUPERTX
(void) supertx_enabled;
#endif
mbmi->mv[0].as_int = 0;
mbmi->mv[1].as_int = 0;
#if CONFIG_COPY_MODE
if (mbmi->sb_type >= BLOCK_8X8)
num_candidate = vp9_construct_ref_inter_list(
cm, xd, mbmi->sb_type, mi_row, mi_col, inter_ref_list);
if (mbmi->sb_type >= BLOCK_8X8 && num_candidate > 0) {
int ctx = vp9_get_copy_mode_context(xd);
int is_copy = vp9_read(r, cm->fc.copy_noref_prob[ctx][mbmi->sb_type]);
++cm->counts.copy_noref[ctx][mbmi->sb_type][is_copy];
if (!is_copy) {
mbmi->copy_mode = NOREF;
} else {
mbmi->copy_mode = read_copy_mode(cm, r, num_candidate, ctx);
}
} else {
mbmi->copy_mode = NOREF;
}
if (mbmi->copy_mode != NOREF) {
BLOCK_SIZE bsize_backup = mbmi->sb_type;
int skip_backup = mbmi->skip;
COPY_MODE copy_mode_backup = mbmi->copy_mode;
#if CONFIG_SUPERTX
TX_SIZE tx_size_backup = mbmi->tx_size;
#endif // CONFIG_SUPERTX
#if CONFIG_EXT_TX
EXT_TX_TYPE ext_txfrm_backup = mbmi->ext_txfrm;
#endif // CONFIG_EXT_TX
inter_block = 1;
*mbmi = *inter_ref_list[mbmi->copy_mode - REF0];
#if CONFIG_SUPERTX
mbmi->tx_size = tx_size_backup;
#endif // CONFIG_SUPERTX
#if CONFIG_EXT_TX
mbmi->ext_txfrm = ext_txfrm_backup;
#endif // CONFIG_EXT_TX
#if CONFIG_INTERINTRA
if (mbmi->ref_frame[1] == INTRA_FRAME)
mbmi->ref_frame[1] = NONE;
#endif // CONFIG_INTERINTRA
#if CONFIG_WEDGE_PARTITION
mbmi->use_wedge_interinter = 0;
#endif // CONFIG_WEDGE_PARTITION
mbmi->sb_type = bsize_backup;
mbmi->mode = NEARESTMV;
mbmi->skip = skip_backup;
mbmi->copy_mode = copy_mode_backup;
}
#endif // CONFIG_COPY_MODE
mbmi->segment_id = read_inter_segment_id(cm, xd, mi_row, mi_col, r);
#if CONFIG_SUPERTX
if (!supertx_enabled) {
#endif
mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r);
#if CONFIG_COPY_MODE
if (mbmi->copy_mode == NOREF)
#endif
inter_block = read_is_inter_block(cm, xd, mbmi->segment_id, r);
#if CONFIG_PALETTE
mbmi->palette_enabled[0] = 0;
mbmi->palette_enabled[1] = 0;
if (!inter_block && mbmi->sb_type >= BLOCK_8X8 && cm->allow_palette_mode) {
const MODE_INFO *above_mi = xd->up_available ?
xd->mi[-xd->mi_stride].src_mi : NULL;
const MODE_INFO *left_mi = xd->left_available ?
xd->mi[-1].src_mi : NULL;
int ctx = 0;
if (above_mi)
ctx += (above_mi->mbmi.palette_enabled[0] == 1);
if (left_mi)
ctx += (left_mi->mbmi.palette_enabled[0] == 1);
mbmi->palette_enabled[0] =
vp9_read(r,
cm->fc.palette_enabled_prob[mbmi->sb_type - BLOCK_8X8][ctx]);
mbmi->palette_enabled[1] =
vp9_read(r, cm->fc.palette_uv_enabled_prob[mbmi->palette_enabled[0]]);
}
if (mbmi->palette_enabled[0]) {
BLOCK_SIZE bsize = mbmi->sb_type;
int i, d;
int rows = 4 * num_4x4_blocks_high_lookup[bsize];
int cols = 4 * num_4x4_blocks_wide_lookup[bsize];
PALETTE_RUN_LENGTH bits;
mbmi->mode = DC_PRED;
mbmi->palette_size[0] =
vp9_read_tree(r, vp9_palette_size_tree,
cm->fc.palette_size_prob[bsize - BLOCK_8X8]);
mbmi->palette_size[0] += 2;
mbmi->palette_run_length[0] =
vp9_read_literal(r, get_bit_depth(palette_max_run(bsize)));
mbmi->palette_run_length[0] = (mbmi->palette_run_length[0]) << 1;
mbmi->palette_scan_order[0] =
vp9_read_tree(r, vp9_palette_scan_order_tree,
cm->fc.palette_scan_order_prob[bsize - BLOCK_8X8]);
for (i = 0; i < mbmi->palette_size[0]; i++) {
mbmi->palette_colors[i] = vp9_read_literal(r, 8);
}
d = get_bit_depth(rows * cols);
for (i = 0; i < mbmi->palette_run_length[0]; i += 2) {
mbmi->palette_runs[i] =
vp9_read_literal(r, get_bit_depth(mbmi->palette_size[0]));
bits = vp9_read_tree(r, vp9_palette_run_length_tree,
cm->fc.palette_run_length_prob[bsize - BLOCK_8X8]);
if (bits == MAX_BITS)
mbmi->palette_runs[i + 1] = vp9_read_literal(r, d);
else
mbmi->palette_runs[i + 1] = vp9_read_literal(r, bits - ONE_BITS + 1);
mbmi->palette_runs[i + 1] += 1;
}
run_lengh_decoding(mbmi->palette_runs, mbmi->palette_run_length[0],
xd->palette_map_buffer);
palette_iscan(xd->plane[0].color_index_map, xd->palette_map_buffer, rows,
cols, mbmi->palette_scan_order[0], xd->palette_scan_buffer);
mbmi->tx_size = MIN(max_txsize_lookup[bsize],
tx_mode_to_biggest_tx_size[cm->tx_mode]);
if (!cm->frame_parallel_decoding_mode)
++get_tx_counts(max_txsize_lookup[bsize], vp9_get_tx_size_context(xd),
&cm->counts.tx)[mbmi->tx_size];
}
if (mbmi->palette_enabled[1]) {
int i, d;
BLOCK_SIZE bsize = mbmi->sb_type;
int rows = 4 * num_4x4_blocks_high_lookup[bsize] >>
xd->plane[1].subsampling_y;
int cols = 4 * num_4x4_blocks_wide_lookup[bsize] >>
xd->plane[1].subsampling_x;
PALETTE_RUN_LENGTH bits;
BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, &xd->plane[1]);
mbmi->uv_mode = DC_PRED;
if (xd->plane[1].subsampling_x && xd->plane[1].subsampling_y) {
mbmi->palette_size[1] =
vp9_read_tree(r, vp9_palette_size_tree,
cm->fc.palette_uv_size_prob[bsize - BLOCK_8X8]);
mbmi->palette_size[1] += 2;
mbmi->palette_run_length[1] =
vp9_read_literal(r, get_bit_depth(palette_max_run(uv_bsize)));
mbmi->palette_run_length[1] = (mbmi->palette_run_length[1]) << 1;
mbmi->palette_scan_order[1] =
vp9_read_tree(r, vp9_palette_scan_order_tree,
cm->fc.palette_uv_scan_order_prob[bsize - BLOCK_8X8]);
} else {
mbmi->palette_size[1] = mbmi->palette_size[0];
}
for (i = 0; i < mbmi->palette_size[1]; i++)
mbmi->palette_colors[PALETTE_MAX_SIZE + i] = vp9_read_literal(r, 8);
for (i = 0; i < mbmi->palette_size[1]; i++)
mbmi->palette_colors[2 * PALETTE_MAX_SIZE + i] = vp9_read_literal(r, 8);
if (xd->plane[1].subsampling_x && xd->plane[1].subsampling_y) {
d = get_bit_depth(rows * cols);
for (i = 0; i < mbmi->palette_run_length[1]; i += 2) {
mbmi->palette_runs[PALETTE_MAX_RUNS + i] =
vp9_read_literal(r, get_bit_depth(mbmi->palette_size[1]));
bits = vp9_read_tree(r, vp9_palette_run_length_tree,
cm->fc.palette_uv_run_length_prob[bsize -
BLOCK_8X8]);
if (bits == MAX_BITS)
mbmi->palette_runs[PALETTE_MAX_RUNS + i + 1] =
vp9_read_literal(r, d);
else
mbmi->palette_runs[PALETTE_MAX_RUNS + i + 1] =
vp9_read_literal(r, bits - ONE_BITS + 1);
mbmi->palette_runs[ PALETTE_MAX_RUNS + i + 1] += 1;
}
run_lengh_decoding(mbmi->palette_runs + PALETTE_MAX_RUNS,
mbmi->palette_run_length[1], xd->palette_map_buffer);
palette_iscan(xd->plane[1].color_index_map, xd->palette_map_buffer,
rows, cols, mbmi->palette_scan_order[1],
xd->palette_scan_buffer);
}
}
if (!inter_block && mbmi->sb_type >= BLOCK_8X8 && cm->allow_palette_mode) {
BLOCK_SIZE bsize = mbmi->sb_type;
int palette_ctx = 0;
const MODE_INFO *above_mi = xd->up_available ?
xd->mi[-xd->mi_stride].src_mi : NULL;
const MODE_INFO *left_mi = xd->left_available ?
xd->mi[-1].src_mi : NULL;
if (above_mi)
palette_ctx += (above_mi->mbmi.palette_enabled[0] == 1);
if (left_mi)
palette_ctx += (left_mi->mbmi.palette_enabled[0] == 1);
update_palette_counts(&cm->counts, mbmi, bsize, palette_ctx);
}
if (!mbmi->palette_enabled[0]) {
mbmi->tx_size = read_tx_size(cm, xd, cm->tx_mode, mbmi->sb_type,
!mbmi->skip || !inter_block, r);
}
#else
mbmi->tx_size = read_tx_size(cm, xd, cm->tx_mode, mbmi->sb_type,
!mbmi->skip || !inter_block, r);
#endif // CONFIG_PALETTE
#if CONFIG_EXT_TX
if (inter_block &&
mbmi->tx_size <= TX_16X16 &&
cm->base_qindex > 0 &&
mbmi->sb_type >= BLOCK_8X8 &&
#if CONFIG_SUPERTX
!supertx_enabled &&
#endif
!vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP) &&
!mbmi->skip) {
mbmi->ext_txfrm = vp9_read_tree(r, vp9_ext_tx_tree,
cm->fc.ext_tx_prob[mbmi->tx_size]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.ext_tx[mbmi->tx_size][mbmi->ext_txfrm];
} else {
mbmi->ext_txfrm = NORM;
}
#endif // CONFIG_EXT_TX
#if CONFIG_SUPERTX
} else {
const int ctx = vp9_get_intra_inter_context(xd);
inter_block = 1;
if (!cm->frame_parallel_decoding_mode)
#if CONFIG_COPY_MODE
if (mbmi->copy_mode == NOREF)
#endif // CONFIG_COPY_MODE
++cm->counts.intra_inter[ctx][1];
#if CONFIG_PALETTE
mbmi->palette_enabled[0] = 0;
mbmi->palette_enabled[1] = 0;
#endif // CONFIG_PALETTE
}
#endif // CONFIG_SUPERTX
#if CONFIG_TX_SKIP
if (mbmi->sb_type >= BLOCK_8X8) {
int q_idx = vp9_get_qindex(&cm->seg, mbmi->segment_id, cm->base_qindex);
int try_tx_skip = inter_block ? q_idx <= TX_SKIP_Q_THRESH_INTER :
q_idx <= TX_SKIP_Q_THRESH_INTRA;
#if CONFIG_COPY_MODE
if (mbmi->copy_mode != NOREF)
try_tx_skip = 0;
#endif // CONFIG_COPY_MODE
#if CONFIG_SUPERTX
if (try_tx_skip && !supertx_enabled) {
#else
if (try_tx_skip && (!mbmi->skip || !inter_block)) {
#endif // CONFIG_SUPERTX
if (xd->lossless) {
#if CONFIG_SUPERTX
if (1)
#else
if (mbmi->tx_size == TX_4X4)
#endif // CONFIG_SUPERTX
mbmi->tx_skip[0] = vp9_read(r, cm->fc.y_tx_skip_prob[inter_block]);
else
mbmi->tx_skip[0] = 1;
#if CONFIG_SUPERTX
if (1)
#else
if (get_uv_tx_size(mbmi, &xd->plane[1]) == TX_4X4)
#endif // CONFIG_SUPERTX
mbmi->tx_skip[1] =
vp9_read(r, cm->fc.uv_tx_skip_prob[mbmi->tx_skip[0]]);
else
mbmi->tx_skip[1] = 1;
} else {
mbmi->tx_skip[0] = vp9_read(r, cm->fc.y_tx_skip_prob[inter_block]);
mbmi->tx_skip[1] =
vp9_read(r, cm->fc.uv_tx_skip_prob[mbmi->tx_skip[0]]);
}
#if CONFIG_SUPERTX
if (!cm->frame_parallel_decoding_mode && !supertx_enabled) {
#else
if (!cm->frame_parallel_decoding_mode) {
#endif
++cm->counts.y_tx_skip[inter_block][mbmi->tx_skip[0]];
++cm->counts.uv_tx_skip[mbmi->tx_skip[0]][mbmi->tx_skip[1]];
}
} else {
mbmi->tx_skip[0] = 0;
mbmi->tx_skip[1] = 0;
}
} else {
mbmi->tx_skip[0] = 0;
mbmi->tx_skip[1] = 0;
}
#endif // CONFIG_TX_SKIP
if (inter_block) {
read_inter_block_mode_info(cm, xd, tile, mi,
#if CONFIG_SUPERTX
supertx_enabled,
#endif
mi_row, mi_col, r);
} else {
read_intra_block_mode_info(cm, mi,
#if CONFIG_FILTERINTRA
xd,
#endif
r);
}
}
void vp9_read_mode_info(VP9_COMMON *cm, MACROBLOCKD *xd,
const TileInfo *const tile,
#if CONFIG_SUPERTX
int supertx_enabled,
#endif
int mi_row, int mi_col, vp9_reader *r) {
if (frame_is_intra_only(cm))
read_intra_frame_mode_info(cm, xd, mi_row, mi_col, r);
else
read_inter_frame_mode_info(cm, xd, tile,
#if CONFIG_SUPERTX
supertx_enabled,
#endif
mi_row, mi_col, r);
}
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