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aomedia / aom / de1b1e120b9c3809a9fdccdac251720aef3dda44 / . / av1 / decoder / decodemv.c
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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <assert.h>
#include "av1/common/cfl.h"
#include "av1/common/common.h"
#include "av1/common/entropy.h"
#include "av1/common/entropymode.h"
#include "av1/common/entropymv.h"
#include "av1/common/mvref_common.h"
#include "av1/common/pred_common.h"
#include "av1/common/reconinter.h"
#include "av1/common/reconintra.h"
#include "av1/common/seg_common.h"
#include "av1/common/warped_motion.h"
#include "av1/decoder/decodeframe.h"
#include "av1/decoder/decodemv.h"
#include "aom_dsp/aom_dsp_common.h"
#if CONFIG_INTERINTRA_ML
#include "av1/common/interintra_ml.h"
#endif
#define ACCT_STR __func__
#define DEC_MISMATCH_DEBUG 0
#if !CONFIG_DERIVED_INTRA_MODE
static PREDICTION_MODE read_intra_mode(aom_reader *r, aom_cdf_prob *cdf) {
return (PREDICTION_MODE)aom_read_symbol(r, cdf, INTRA_MODES, ACCT_STR);
}
#endif // !CONFIG_DERIVED_INTRA_MODE
static void read_cdef(AV1_COMMON *cm, aom_reader *r, MACROBLOCKD *const xd,
int mi_col, int mi_row) {
MB_MODE_INFO *const mbmi = xd->mi[0];
if (cm->coded_lossless) return;
if (cm->allow_intrabc) {
assert(cm->cdef_info.cdef_bits == 0);
return;
}
if (!(mi_col & (cm->seq_params.mib_size - 1)) &&
!(mi_row & (cm->seq_params.mib_size - 1))) { // Top left?
xd->cdef_preset[0] = xd->cdef_preset[1] = xd->cdef_preset[2] =
xd->cdef_preset[3] = -1;
}
// Read CDEF param at the first non-skip coding block
const int mask = (1 << (6 - MI_SIZE_LOG2));
const int m = ~(mask - 1);
const int index = cm->seq_params.sb_size == BLOCK_128X128
? !!(mi_col & mask) + 2 * !!(mi_row & mask)
: 0;
cm->mi_grid_base[(mi_row & m) * cm->mi_stride + (mi_col & m)]->cdef_strength =
xd->cdef_preset[index] =
xd->cdef_preset[index] == -1 && !mbmi->skip
? aom_read_literal(r, cm->cdef_info.cdef_bits, ACCT_STR)
: xd->cdef_preset[index];
}
static int read_delta_qindex(AV1_COMMON *cm, const MACROBLOCKD *xd,
aom_reader *r, MB_MODE_INFO *const mbmi,
int mi_col, int mi_row) {
int sign, abs, reduced_delta_qindex = 0;
BLOCK_SIZE bsize = mbmi->sb_type;
const int b_col = mi_col & (cm->seq_params.mib_size - 1);
const int b_row = mi_row & (cm->seq_params.mib_size - 1);
const int read_delta_q_flag = (b_col == 0 && b_row == 0);
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
if ((bsize != cm->seq_params.sb_size || mbmi->skip == 0) &&
read_delta_q_flag) {
abs = aom_read_symbol(r, ec_ctx->delta_q_cdf, DELTA_Q_PROBS + 1, ACCT_STR);
const int smallval = (abs < DELTA_Q_SMALL);
if (!smallval) {
const int rem_bits = aom_read_literal(r, 3, ACCT_STR) + 1;
const int thr = (1 << rem_bits) + 1;
abs = aom_read_literal(r, rem_bits, ACCT_STR) + thr;
}
if (abs) {
sign = aom_read_bit(r, ACCT_STR);
} else {
sign = 1;
}
reduced_delta_qindex = sign ? -abs : abs;
}
return reduced_delta_qindex;
}
static int read_delta_lflevel(const AV1_COMMON *const cm, aom_reader *r,
aom_cdf_prob *const cdf,
const MB_MODE_INFO *const mbmi, int mi_col,
int mi_row) {
int reduced_delta_lflevel = 0;
const BLOCK_SIZE bsize = mbmi->sb_type;
const int b_col = mi_col & (cm->seq_params.mib_size - 1);
const int b_row = mi_row & (cm->seq_params.mib_size - 1);
const int read_delta_lf_flag = (b_col == 0 && b_row == 0);
if ((bsize != cm->seq_params.sb_size || mbmi->skip == 0) &&
read_delta_lf_flag) {
int abs = aom_read_symbol(r, cdf, DELTA_LF_PROBS + 1, ACCT_STR);
const int smallval = (abs < DELTA_LF_SMALL);
if (!smallval) {
const int rem_bits = aom_read_literal(r, 3, ACCT_STR) + 1;
const int thr = (1 << rem_bits) + 1;
abs = aom_read_literal(r, rem_bits, ACCT_STR) + thr;
}
const int sign = abs ? aom_read_bit(r, ACCT_STR) : 1;
reduced_delta_lflevel = sign ? -abs : abs;
}
return reduced_delta_lflevel;
}
#if !CONFIG_INTRA_ENTROPY
static UV_PREDICTION_MODE read_intra_mode_uv(FRAME_CONTEXT *ec_ctx,
aom_reader *r,
CFL_ALLOWED_TYPE cfl_allowed,
#if CONFIG_DERIVED_INTRA_MODE
const MACROBLOCKD *const xd,
#endif // CONFIG_DERIVED_INTRA_MODE
MB_MODE_INFO *const mbmi) {
PREDICTION_MODE y_mode = mbmi->mode;
#if CONFIG_DERIVED_INTRA_MODE
const BLOCK_SIZE bsize = mbmi->sb_type;
if (av1_enable_derived_intra_mode(xd, bsize)) {
mbmi->use_derived_intra_mode[1] = aom_read_symbol(
r, ec_ctx->uv_derived_intra_mode_cdf[mbmi->use_derived_intra_mode[0]],
2, ACCT_STR);
}
if (mbmi->use_derived_intra_mode[1]) {
return av1_get_derived_intra_mode(xd, bsize, mbmi);
}
if (mbmi->use_derived_intra_mode[0]) y_mode = DC_PRED;
#endif // CONFIG_DERIVED_INTRA_MODE
const UV_PREDICTION_MODE uv_mode =
aom_read_symbol(r, ec_ctx->uv_mode_cdf[cfl_allowed][y_mode],
UV_INTRA_MODES - !cfl_allowed, ACCT_STR);
return uv_mode;
}
#endif // !CONFIG_INTRA_ENTROPY
static uint8_t read_cfl_alphas(FRAME_CONTEXT *const ec_ctx, aom_reader *r,
int8_t *signs_out) {
const int8_t joint_sign =
aom_read_symbol(r, ec_ctx->cfl_sign_cdf, CFL_JOINT_SIGNS, "cfl:signs");
uint8_t idx = 0;
// Magnitudes are only coded for nonzero values
if (CFL_SIGN_U(joint_sign) != CFL_SIGN_ZERO) {
aom_cdf_prob *cdf_u = ec_ctx->cfl_alpha_cdf[CFL_CONTEXT_U(joint_sign)];
idx = (uint8_t)aom_read_symbol(r, cdf_u, CFL_ALPHABET_SIZE, "cfl:alpha_u")
<< CFL_ALPHABET_SIZE_LOG2;
}
if (CFL_SIGN_V(joint_sign) != CFL_SIGN_ZERO) {
aom_cdf_prob *cdf_v = ec_ctx->cfl_alpha_cdf[CFL_CONTEXT_V(joint_sign)];
idx += (uint8_t)aom_read_symbol(r, cdf_v, CFL_ALPHABET_SIZE, "cfl:alpha_v");
}
*signs_out = joint_sign;
return idx;
}
static PREDICTION_MODE read_inter_mode(FRAME_CONTEXT *ec_ctx, aom_reader *r,
int16_t ctx) {
int16_t mode_ctx = ctx & NEWMV_CTX_MASK;
#if CONFIG_NEW_INTER_MODES
int is_newmv, is_zeromv;
#else
int is_newmv, is_zeromv, is_refmv;
#endif // CONFIG_NEW_INTER_MODES
is_newmv = aom_read_symbol(r, ec_ctx->newmv_cdf[mode_ctx], 2, ACCT_STR) == 0;
if (is_newmv) return NEWMV;
// TODO(siroh): For some frames, the DRL will be "empty."
// Under NEW_INTER_MODES, the frame GMV will be inserted to fix this.
// Under the old process, get_this_mv inserts the frame GMV on-the-fly.
// When this situation happens there's no actual need to signal the next
// bit, because it's either NEARMV 0 referencing the GMV or GLOBAL referencing
// the GMV.
// Implement this for NEW_INTER_MODES, possibly using a new context.
mode_ctx = (ctx >> GLOBALMV_OFFSET) & GLOBALMV_CTX_MASK;
is_zeromv =
aom_read_symbol(r, ec_ctx->zeromv_cdf[mode_ctx], 2, ACCT_STR) == 0;
if (is_zeromv) return GLOBALMV;
#if CONFIG_NEW_INTER_MODES
return NEARMV;
#else
mode_ctx = (ctx >> REFMV_OFFSET) & REFMV_CTX_MASK;
is_refmv = aom_read_symbol(r, ec_ctx->refmv_cdf[mode_ctx], 2, ACCT_STR) == 0;
if (is_refmv)
return NEARESTMV;
else
return NEARMV;
#endif // CONFIG_NEW_INTER_MODES
}
#if CONFIG_NEW_INTER_MODES
// Read a DRL index from the bitstream and modify mbmi->ref_mv_idx
// to hold its value.
// See write_drl_idx for a description of how this works.
static void read_drl_idx(FRAME_CONTEXT *ec_ctx, const AV1_COMMON *cm,
int16_t mode_ctx, MACROBLOCKD *xd, MB_MODE_INFO *mbmi,
aom_reader *r) {
(void)cm;
uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
mbmi->ref_mv_idx = 0;
assert(!mbmi->skip_mode);
#if CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
mbmi->ref_mv_idx_adj = 0;
#endif // CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
#if CONFIG_DERIVED_MV
if (mbmi->derived_mv_allowed && mbmi->use_derived_mv) return;
#endif // CONFIG_DERIVED_MV
#if CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
if (av1_use_adjust_drl(mbmi)) {
int range_adj = AOMMIN(xd->ref_mv_info.ref_mv_count_adj - 1, MAX_DRL_BITS);
for (int idx = 0; idx < range_adj; ++idx) {
aom_cdf_prob *drl_cdf = av1_get_drl_cdf(
mode_ctx, ec_ctx, mbmi->mode, xd->ref_mv_info.ref_mv_weight_adj, idx);
int drl_idx = aom_read_symbol(r, drl_cdf, 2, ACCT_STR);
mbmi->ref_mv_idx_adj = idx + drl_idx;
if (!drl_idx) break;
}
assert(mbmi->ref_mv_idx_adj < MAX_DRL_BITS + 1);
return;
}
#endif // CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
const int range =
AOMMIN(xd->ref_mv_info.ref_mv_count[ref_frame_type] - 1, MAX_DRL_BITS);
for (int idx = 0; idx < range; ++idx) {
aom_cdf_prob *drl_cdf =
av1_get_drl_cdf(mode_ctx, ec_ctx, mbmi->mode,
xd->ref_mv_info.ref_mv_weight[ref_frame_type], idx);
int drl_idx = aom_read_symbol(r, drl_cdf, 2, ACCT_STR);
mbmi->ref_mv_idx = idx + drl_idx;
if (!drl_idx) break;
}
assert(mbmi->ref_mv_idx < MAX_DRL_BITS + 1);
}
#else
static void read_drl_idx(FRAME_CONTEXT *ec_ctx, const AV1_COMMON *cm,
MACROBLOCKD *xd, MB_MODE_INFO *mbmi, aom_reader *r) {
(void)cm;
uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
mbmi->ref_mv_idx = 0;
if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV) {
#if CONFIG_FLEX_MVRES
mbmi->ref_mv_idx_adj = 0;
if (mbmi->pb_mv_precision < mbmi->max_mv_precision) {
for (int idx = 0; idx < MAX_DRL_BITS; ++idx) {
if (xd->ref_mv_info.ref_mv_count_adj > idx + 1) {
uint8_t drl_ctx = av1_drl_ctx(xd->ref_mv_info.ref_mv_weight_adj, idx);
int drl_idx =
aom_read_symbol(r, ec_ctx->drl_cdf[drl_ctx], 2, ACCT_STR);
mbmi->ref_mv_idx_adj = idx + drl_idx;
if (!drl_idx) return;
}
}
return;
}
#endif // CONFIG_FLEX_MVRES
for (int idx = 0; idx < MAX_DRL_BITS; ++idx) {
if (xd->ref_mv_info.ref_mv_count[ref_frame_type] > idx + 1) {
const uint8_t drl_ctx =
av1_drl_ctx(xd->ref_mv_info.ref_mv_weight[ref_frame_type], idx);
int drl_idx = aom_read_symbol(r, ec_ctx->drl_cdf[drl_ctx], 2, ACCT_STR);
mbmi->ref_mv_idx = idx + drl_idx;
if (!drl_idx) return;
}
}
return;
}
if (have_nearmv_in_inter_mode(mbmi->mode)) {
// Offset the NEARESTMV mode.
// TODO(jingning): Unify the two syntax decoding loops after the NEARESTMV
// mode is factored in.
for (int idx = 1; idx < MAX_DRL_BITS + 1; ++idx) {
if (xd->ref_mv_info.ref_mv_count[ref_frame_type] > idx + 1) {
const uint8_t drl_ctx =
av1_drl_ctx(xd->ref_mv_info.ref_mv_weight[ref_frame_type], idx);
int drl_idx = aom_read_symbol(r, ec_ctx->drl_cdf[drl_ctx], 2, ACCT_STR);
mbmi->ref_mv_idx = idx + drl_idx - 1;
if (!drl_idx) return;
}
}
}
}
#endif // CONFIG_NEW_INTER_MODES
static MOTION_MODE read_motion_mode(AV1_COMMON *cm, MACROBLOCKD *xd,
MB_MODE_INFO *mbmi, aom_reader *r) {
if (cm->switchable_motion_mode == 0) return SIMPLE_TRANSLATION;
if (mbmi->skip_mode) return SIMPLE_TRANSLATION;
int motion_mode;
const MOTION_MODE_SET motion_mode_set = av1_get_allowed_motion_mode_set(
xd->global_motion, xd, mbmi, cm->allow_warped_motion);
if (motion_mode_set == ONLY_SIMPLE_TRANSLATION) return SIMPLE_TRANSLATION;
int num_modes = 0;
aom_cdf_prob *cdf = av1_get_motion_mode_cdf(xd, motion_mode_set, &num_modes);
motion_mode = aom_read_symbol(r, cdf, num_modes, ACCT_STR);
#if CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
if (motion_mode_set == ALLOW_WARPED_CAUSAL && motion_mode == 1) {
motion_mode = WARPED_CAUSAL;
}
#endif // CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
return motion_mode;
}
static PREDICTION_MODE read_inter_compound_mode(MACROBLOCKD *xd, aom_reader *r,
int16_t ctx) {
const int mode =
aom_read_symbol(r, xd->tile_ctx->inter_compound_mode_cdf[ctx],
INTER_COMPOUND_MODES, ACCT_STR);
assert(is_inter_compound_mode(COMP_INTER_MODE_START + mode));
return COMP_INTER_MODE_START + mode;
}
int av1_neg_deinterleave(int diff, int ref, int max) {
if (!ref) return diff;
if (ref >= (max - 1)) return max - diff - 1;
if (2 * ref < max) {
if (diff <= 2 * ref) {
if (diff & 1)
return ref + ((diff + 1) >> 1);
else
return ref - (diff >> 1);
}
return diff;
} else {
if (diff <= 2 * (max - ref - 1)) {
if (diff & 1)
return ref + ((diff + 1) >> 1);
else
return ref - (diff >> 1);
}
return max - (diff + 1);
}
}
static int read_segment_id(AV1_COMMON *const cm, const MACROBLOCKD *const xd,
int mi_row, int mi_col, aom_reader *r, int skip) {
int cdf_num;
const int pred = av1_get_spatial_seg_pred(cm, xd, mi_row, mi_col, &cdf_num);
if (skip) return pred;
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
struct segmentation *const seg = &cm->seg;
struct segmentation_probs *const segp = &ec_ctx->seg;
aom_cdf_prob *pred_cdf = segp->spatial_pred_seg_cdf[cdf_num];
const int coded_id = aom_read_symbol(r, pred_cdf, MAX_SEGMENTS, ACCT_STR);
const int segment_id =
av1_neg_deinterleave(coded_id, pred, seg->last_active_segid + 1);
if (segment_id < 0 || segment_id > seg->last_active_segid) {
aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
"Corrupted segment_ids");
}
return segment_id;
}
static int dec_get_segment_id(const AV1_COMMON *cm, const uint8_t *segment_ids,
int mi_offset, int x_mis, int y_mis) {
int segment_id = INT_MAX;
for (int y = 0; y < y_mis; y++)
for (int x = 0; x < x_mis; x++)
segment_id =
AOMMIN(segment_id, segment_ids[mi_offset + y * cm->mi_cols + x]);
assert(segment_id >= 0 && segment_id < MAX_SEGMENTS);
return segment_id;
}
static void set_segment_id(AV1_COMMON *cm, int mi_offset, int x_mis, int y_mis,
int segment_id) {
assert(segment_id >= 0 && segment_id < MAX_SEGMENTS);
for (int y = 0; y < y_mis; y++)
for (int x = 0; x < x_mis; x++)
cm->cur_frame->seg_map[mi_offset + y * cm->mi_cols + x] = segment_id;
}
static int read_intra_segment_id(AV1_COMMON *const cm,
const MACROBLOCKD *const xd, int mi_row,
int mi_col, int bsize, aom_reader *r,
int skip) {
struct segmentation *const seg = &cm->seg;
if (!seg->enabled) return 0; // Default for disabled segmentation
assert(seg->update_map && !seg->temporal_update);
const int mi_offset = mi_row * cm->mi_cols + mi_col;
const int bw = mi_size_wide[bsize];
const int bh = mi_size_high[bsize];
const int x_mis = AOMMIN(cm->mi_cols - mi_col, bw);
const int y_mis = AOMMIN(cm->mi_rows - mi_row, bh);
const int segment_id = read_segment_id(cm, xd, mi_row, mi_col, r, skip);
set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
return segment_id;
}
static void copy_segment_id(const AV1_COMMON *cm,
const uint8_t *last_segment_ids,
uint8_t *current_segment_ids, int mi_offset,
int x_mis, int y_mis) {
for (int y = 0; y < y_mis; y++)
for (int x = 0; x < x_mis; x++)
current_segment_ids[mi_offset + y * cm->mi_cols + x] =
last_segment_ids ? last_segment_ids[mi_offset + y * cm->mi_cols + x]
: 0;
}
static int get_predicted_segment_id(AV1_COMMON *const cm, int mi_offset,
int x_mis, int y_mis) {
return cm->last_frame_seg_map ? dec_get_segment_id(cm, cm->last_frame_seg_map,
mi_offset, x_mis, y_mis)
: 0;
}
static int read_inter_segment_id(AV1_COMMON *const cm, MACROBLOCKD *const xd,
int mi_row, int mi_col, int preskip,
aom_reader *r) {
struct segmentation *const seg = &cm->seg;
MB_MODE_INFO *const mbmi = xd->mi[0];
const int mi_offset = mi_row * cm->mi_cols + mi_col;
const int bw = mi_size_wide[mbmi->sb_type];
const int bh = mi_size_high[mbmi->sb_type];
// TODO(slavarnway): move x_mis, y_mis into xd ?????
const int x_mis = AOMMIN(cm->mi_cols - mi_col, bw);
const int y_mis = AOMMIN(cm->mi_rows - mi_row, bh);
if (!seg->enabled) return 0; // Default for disabled segmentation
if (!seg->update_map) {
copy_segment_id(cm, cm->last_frame_seg_map, cm->cur_frame->seg_map,
mi_offset, x_mis, y_mis);
return get_predicted_segment_id(cm, mi_offset, x_mis, y_mis);
}
int segment_id;
if (preskip) {
if (!seg->segid_preskip) return 0;
} else {
if (mbmi->skip) {
if (seg->temporal_update) {
mbmi->seg_id_predicted = 0;
}
segment_id = read_segment_id(cm, xd, mi_row, mi_col, r, 1);
set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
return segment_id;
}
}
if (seg->temporal_update) {
const int ctx = av1_get_pred_context_seg_id(xd);
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
struct segmentation_probs *const segp = &ec_ctx->seg;
aom_cdf_prob *pred_cdf = segp->pred_cdf[ctx];
mbmi->seg_id_predicted = aom_read_symbol(r, pred_cdf, 2, ACCT_STR);
if (mbmi->seg_id_predicted) {
segment_id = get_predicted_segment_id(cm, mi_offset, x_mis, y_mis);
} else {
segment_id = read_segment_id(cm, xd, mi_row, mi_col, r, 0);
}
} else {
segment_id = read_segment_id(cm, xd, mi_row, mi_col, r, 0);
}
set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
return segment_id;
}
static int read_skip_mode(AV1_COMMON *cm, const MACROBLOCKD *xd, int segment_id,
aom_reader *r) {
if (!cm->current_frame.skip_mode_info.skip_mode_flag) return 0;
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
return 0;
}
if (!is_comp_ref_allowed(xd->mi[0]->sb_type)) return 0;
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME) ||
segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) {
// These features imply single-reference mode, while skip mode implies
// compound reference. Hence, the two are mutually exclusive.
// In other words, skip_mode is implicitly 0 here.
return 0;
}
const int ctx = av1_get_skip_mode_context(xd);
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
const int skip_mode =
aom_read_symbol(r, ec_ctx->skip_mode_cdfs[ctx], 2, ACCT_STR);
return skip_mode;
}
static int read_skip(AV1_COMMON *cm, const MACROBLOCKD *xd, int segment_id,
aom_reader *r) {
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
return 1;
} else {
const int ctx = av1_get_skip_context(xd);
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
const int skip = aom_read_symbol(r, ec_ctx->skip_cdfs[ctx], 2, ACCT_STR);
return skip;
}
}
#if CONFIG_DSPL_RESIDUAL
static DSPL_TYPE read_dspl_type(AV1_COMMON *cm, const MACROBLOCKD *xd,
int segment_id, aom_reader *r) {
(void)cm;
(void)segment_id;
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
const DSPL_TYPE dspl_type =
aom_read_symbol(r, ec_ctx->dspl_type_cdf, DSPL_END, ACCT_STR);
return dspl_type;
}
#endif // CONFIG_DSPL_RESIDUAL
// Merge the sorted list of cached colors(cached_colors[0...n_cached_colors-1])
// and the sorted list of transmitted colors(colors[n_cached_colors...n-1]) into
// one single sorted list(colors[...]).
static void merge_colors(uint16_t *colors, uint16_t *cached_colors,
int n_colors, int n_cached_colors) {
if (n_cached_colors == 0) return;
int cache_idx = 0, trans_idx = n_cached_colors;
for (int i = 0; i < n_colors; ++i) {
if (cache_idx < n_cached_colors &&
(trans_idx >= n_colors ||
cached_colors[cache_idx] <= colors[trans_idx])) {
colors[i] = cached_colors[cache_idx++];
} else {
assert(trans_idx < n_colors);
colors[i] = colors[trans_idx++];
}
}
}
static void read_palette_colors_y(MACROBLOCKD *const xd, int bit_depth,
PALETTE_MODE_INFO *const pmi, aom_reader *r) {
uint16_t color_cache[2 * PALETTE_MAX_SIZE];
uint16_t cached_colors[PALETTE_MAX_SIZE];
const int n_cache = av1_get_palette_cache(xd, 0, color_cache);
const int n = pmi->palette_size[0];
int idx = 0;
for (int i = 0; i < n_cache && idx < n; ++i)
if (aom_read_bit(r, ACCT_STR)) cached_colors[idx++] = color_cache[i];
if (idx < n) {
const int n_cached_colors = idx;
pmi->palette_colors[idx++] = aom_read_literal(r, bit_depth, ACCT_STR);
if (idx < n) {
const int min_bits = bit_depth - 3;
int bits = min_bits + aom_read_literal(r, 2, ACCT_STR);
int range = (1 << bit_depth) - pmi->palette_colors[idx - 1] - 1;
for (; idx < n; ++idx) {
assert(range >= 0);
const int delta = aom_read_literal(r, bits, ACCT_STR) + 1;
pmi->palette_colors[idx] = clamp(pmi->palette_colors[idx - 1] + delta,
0, (1 << bit_depth) - 1);
range -= (pmi->palette_colors[idx] - pmi->palette_colors[idx - 1]);
bits = AOMMIN(bits, av1_ceil_log2(range));
}
}
merge_colors(pmi->palette_colors, cached_colors, n, n_cached_colors);
} else {
memcpy(pmi->palette_colors, cached_colors, n * sizeof(cached_colors[0]));
}
}
static void read_palette_colors_uv(MACROBLOCKD *const xd, int bit_depth,
PALETTE_MODE_INFO *const pmi,
aom_reader *r) {
const int n = pmi->palette_size[1];
// U channel colors.
uint16_t color_cache[2 * PALETTE_MAX_SIZE];
uint16_t cached_colors[PALETTE_MAX_SIZE];
const int n_cache = av1_get_palette_cache(xd, 1, color_cache);
int idx = 0;
for (int i = 0; i < n_cache && idx < n; ++i)
if (aom_read_bit(r, ACCT_STR)) cached_colors[idx++] = color_cache[i];
if (idx < n) {
const int n_cached_colors = idx;
idx += PALETTE_MAX_SIZE;
pmi->palette_colors[idx++] = aom_read_literal(r, bit_depth, ACCT_STR);
if (idx < PALETTE_MAX_SIZE + n) {
const int min_bits = bit_depth - 3;
int bits = min_bits + aom_read_literal(r, 2, ACCT_STR);
int range = (1 << bit_depth) - pmi->palette_colors[idx - 1];
for (; idx < PALETTE_MAX_SIZE + n; ++idx) {
assert(range >= 0);
const int delta = aom_read_literal(r, bits, ACCT_STR);
pmi->palette_colors[idx] = clamp(pmi->palette_colors[idx - 1] + delta,
0, (1 << bit_depth) - 1);
range -= (pmi->palette_colors[idx] - pmi->palette_colors[idx - 1]);
bits = AOMMIN(bits, av1_ceil_log2(range));
}
}
merge_colors(pmi->palette_colors + PALETTE_MAX_SIZE, cached_colors, n,
n_cached_colors);
} else {
memcpy(pmi->palette_colors + PALETTE_MAX_SIZE, cached_colors,
n * sizeof(cached_colors[0]));
}
// V channel colors.
if (aom_read_bit(r, ACCT_STR)) { // Delta encoding.
const int min_bits_v = bit_depth - 4;
const int max_val = 1 << bit_depth;
int bits = min_bits_v + aom_read_literal(r, 2, ACCT_STR);
pmi->palette_colors[2 * PALETTE_MAX_SIZE] =
aom_read_literal(r, bit_depth, ACCT_STR);
for (int i = 1; i < n; ++i) {
int delta = aom_read_literal(r, bits, ACCT_STR);
if (delta && aom_read_bit(r, ACCT_STR)) delta = -delta;
int val = (int)pmi->palette_colors[2 * PALETTE_MAX_SIZE + i - 1] + delta;
if (val < 0) val += max_val;
if (val >= max_val) val -= max_val;
pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] = val;
}
} else {
for (int i = 0; i < n; ++i) {
pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] =
aom_read_literal(r, bit_depth, ACCT_STR);
}
}
}
static void read_palette_mode_info(AV1_COMMON *const cm, MACROBLOCKD *const xd,
aom_reader *r) {
const int num_planes = av1_num_planes(cm);
MB_MODE_INFO *const mbmi = xd->mi[0];
const BLOCK_SIZE bsize = mbmi->sb_type;
assert(av1_allow_palette(cm->allow_screen_content_tools, bsize));
PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info;
const int bsize_ctx = av1_get_palette_bsize_ctx(bsize);
if (mbmi->mode == DC_PRED) {
const int palette_mode_ctx = av1_get_palette_mode_ctx(xd);
const int modev = aom_read_symbol(
r, xd->tile_ctx->palette_y_mode_cdf[bsize_ctx][palette_mode_ctx], 2,
ACCT_STR);
if (modev) {
pmi->palette_size[0] =
aom_read_symbol(r, xd->tile_ctx->palette_y_size_cdf[bsize_ctx],
PALETTE_SIZES, ACCT_STR) +
2;
read_palette_colors_y(xd, cm->seq_params.bit_depth, pmi, r);
}
}
if (num_planes > 1 && mbmi->uv_mode == UV_DC_PRED &&
mbmi->chroma_ref_info.is_chroma_ref) {
const int palette_uv_mode_ctx = (pmi->palette_size[0] > 0);
const int modev = aom_read_symbol(
r, xd->tile_ctx->palette_uv_mode_cdf[palette_uv_mode_ctx], 2, ACCT_STR);
if (modev) {
pmi->palette_size[1] =
aom_read_symbol(r, xd->tile_ctx->palette_uv_size_cdf[bsize_ctx],
PALETTE_SIZES, ACCT_STR) +
2;
read_palette_colors_uv(xd, cm->seq_params.bit_depth, pmi, r);
}
}
}
static int read_angle_delta(aom_reader *r, aom_cdf_prob *cdf) {
const int sym = aom_read_symbol(r, cdf, 2 * MAX_ANGLE_DELTA + 1, ACCT_STR);
return sym - MAX_ANGLE_DELTA;
}
static void read_filter_intra_mode_info(const AV1_COMMON *const cm,
MACROBLOCKD *const xd, aom_reader *r) {
MB_MODE_INFO *const mbmi = xd->mi[0];
FILTER_INTRA_MODE_INFO *filter_intra_mode_info =
&mbmi->filter_intra_mode_info;
if (av1_filter_intra_allowed(cm, mbmi)) {
filter_intra_mode_info->use_filter_intra = aom_read_symbol(
r, xd->tile_ctx->filter_intra_cdfs[mbmi->sb_type], 2, ACCT_STR);
if (filter_intra_mode_info->use_filter_intra) {
filter_intra_mode_info->filter_intra_mode = aom_read_symbol(
r, xd->tile_ctx->filter_intra_mode_cdf, FILTER_INTRA_MODES, ACCT_STR);
}
} else {
filter_intra_mode_info->use_filter_intra = 0;
}
}
#if CONFIG_ADAPT_FILTER_INTRA
static void read_adapt_filter_intra_mode_info(const AV1_COMMON *const cm,
MACROBLOCKD *const xd,
aom_reader *r) {
MB_MODE_INFO *const mbmi = xd->mi[0];
ADAPT_FILTER_INTRA_MODE_INFO *adapt_filter_intra_mode_info =
&mbmi->adapt_filter_intra_mode_info;
if (av1_adapt_filter_intra_allowed(cm, mbmi)) {
adapt_filter_intra_mode_info->use_adapt_filter_intra = aom_read_symbol(
r, xd->tile_ctx->adapt_filter_intra_cdfs[mbmi->sb_type], 2, ACCT_STR);
if (adapt_filter_intra_mode_info->use_adapt_filter_intra) {
adapt_filter_intra_mode_info->adapt_filter_intra_mode =
aom_read_symbol(r, xd->tile_ctx->adapt_filter_intra_mode_cdf,
USED_ADAPT_FILTER_INTRA_MODES, ACCT_STR);
}
} else {
adapt_filter_intra_mode_info->use_adapt_filter_intra = 0;
}
}
#endif // CONFIG_ADAPT_FILTER_INTRA
void av1_read_tx_type(const AV1_COMMON *const cm, MACROBLOCKD *xd, int blk_row,
int blk_col, TX_SIZE tx_size, aom_reader *r) {
MB_MODE_INFO *mbmi = xd->mi[0];
const int txk_type_idx =
av1_get_txk_type_index(mbmi->sb_type, blk_row, blk_col);
TX_TYPE *tx_type = &mbmi->txk_type[txk_type_idx];
*tx_type = DCT_DCT;
// No need to read transform type if block is skipped.
if (mbmi->skip || segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP))
return;
// No need to read transform type for lossless mode(qindex==0).
const int qindex = xd->qindex[mbmi->segment_id];
if (qindex == 0) return;
const int inter_block = is_inter_block(mbmi);
if (get_ext_tx_types(tx_size, inter_block, cm->reduced_tx_set_used) > 1) {
const TxSetType tx_set_type =
av1_get_ext_tx_set_type(tx_size, inter_block, cm->reduced_tx_set_used);
const int eset =
get_ext_tx_set(tx_size, inter_block, cm->reduced_tx_set_used);
// eset == 0 should correspond to a set with only DCT_DCT and
// there is no need to read the tx_type
assert(eset != 0);
const TX_SIZE square_tx_size = txsize_sqr_map[tx_size];
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
if (inter_block) {
#if CONFIG_MODE_DEP_INTER_TX
if (tx_set_type == EXT_TX_SET_ALL16_MDTX8) {
if (aom_read_symbol(r, ec_ctx->use_mdtx_inter_cdf[square_tx_size], 2,
ACCT_STR)) {
*tx_type =
MDTX_INTER_1 +
aom_read_symbol(r, ec_ctx->mdtx_type_inter_cdf[square_tx_size],
MDTX_TYPES_INTER, ACCT_STR);
} else {
*tx_type = av1_ext_tx_inv[tx_set_type][aom_read_symbol(
r, ec_ctx->inter_ext_tx_cdf[eset][square_tx_size],
av1_num_ext_tx_set[tx_set_type], ACCT_STR)];
}
} else {
#endif
*tx_type = av1_ext_tx_inv[tx_set_type][aom_read_symbol(
r, ec_ctx->inter_ext_tx_cdf[eset][square_tx_size],
av1_num_ext_tx_set[tx_set_type], ACCT_STR)];
#if CONFIG_MODE_DEP_INTER_TX
}
#endif
} else {
PREDICTION_MODE intra_mode =
mbmi->filter_intra_mode_info.use_filter_intra
? fimode_to_intradir[mbmi->filter_intra_mode_info
.filter_intra_mode]
: mbmi->mode;
#if CONFIG_ADAPT_FILTER_INTRA
if (mbmi->adapt_filter_intra_mode_info.use_adapt_filter_intra) {
intra_mode = afimode_to_intradir[mbmi->adapt_filter_intra_mode_info
.adapt_filter_intra_mode];
}
#endif // CONFIG_ADAPT_FILTER_INTRA
#if CONFIG_MODE_DEP_INTRA_TX
if (tx_set_type == EXT_TX_SET_DTT4_IDTX_1DDCT_MDTX4) {
if (aom_read_symbol(
r, ec_ctx->use_mdtx_intra_cdf[square_tx_size][intra_mode], 2,
ACCT_STR)) {
*tx_type =
MDTX_INTRA_1 +
aom_read_symbol(
r, ec_ctx->mdtx_type_intra_cdf[square_tx_size][intra_mode],
MDTX_TYPES_INTRA, ACCT_STR);
} else {
*tx_type = av1_ext_tx_inv[tx_set_type][aom_read_symbol(
r, ec_ctx->intra_ext_tx_cdf[eset][square_tx_size][intra_mode],
av1_num_ext_tx_set[tx_set_type], ACCT_STR)];
}
} else {
#endif
*tx_type = av1_ext_tx_inv[tx_set_type][aom_read_symbol(
r, ec_ctx->intra_ext_tx_cdf[eset][square_tx_size][intra_mode],
av1_num_ext_tx_set[tx_set_type], ACCT_STR)];
#if CONFIG_MODE_DEP_INTRA_TX
}
#endif
}
}
}
static INLINE void read_mv(aom_reader *r, MV *mv, const MV *ref,
nmv_context *ctx, MvSubpelPrecision precision);
static INLINE void read_dv(aom_reader *r, MV *mv, const MV *ref,
nmv_context *ctx, MvSubpelPrecision precision);
static INLINE int is_mv_valid(const MV *mv);
static INLINE int assign_dv(AV1_COMMON *cm, MACROBLOCKD *xd, int_mv *mv,
const int_mv *ref_mv, int mi_row, int mi_col,
BLOCK_SIZE bsize, aom_reader *r) {
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
read_dv(r, &mv->as_mv, &ref_mv->as_mv, &ec_ctx->ndvc, MV_SUBPEL_NONE);
// DV should not have sub-pel.
assert((mv->as_mv.col & 7) == 0);
assert((mv->as_mv.row & 7) == 0);
mv->as_mv.col = (mv->as_mv.col >> 3) * 8;
mv->as_mv.row = (mv->as_mv.row >> 3) * 8;
int valid = is_mv_valid(&mv->as_mv) &&
av1_is_dv_valid(mv->as_mv, cm, xd, mi_row, mi_col, bsize,
cm->seq_params.mib_size_log2,
&xd->mi[0]->chroma_ref_info);
return valid;
}
static void read_intrabc_info(AV1_COMMON *const cm, MACROBLOCKD *const xd,
int mi_row, int mi_col, aom_reader *r) {
MB_MODE_INFO *const mbmi = xd->mi[0];
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
mbmi->use_intrabc = aom_read_symbol(r, ec_ctx->intrabc_cdf, 2, ACCT_STR);
if (mbmi->use_intrabc) {
BLOCK_SIZE bsize = mbmi->sb_type;
mbmi->mode = DC_PRED;
mbmi->uv_mode = UV_DC_PRED;
mbmi->interp_filters = av1_broadcast_interp_filter(BILINEAR);
mbmi->motion_mode = SIMPLE_TRANSLATION;
mbmi->max_mv_precision = MV_SUBPEL_NONE;
mbmi->pb_mv_precision = mbmi->max_mv_precision;
#if CONFIG_EXT_IBC_MODES
if (cm->ext_ibc_config == CONFIG_EXT_IBC_ALLMODES)
mbmi->ibc_mode =
aom_read_symbol(r, ec_ctx->intrabc_mode_cdf, 8, ACCT_STR);
else if (cm->ext_ibc_config == CONFIG_EXT_IBC_TOP5MODES)
mbmi->ibc_mode =
aom_read_symbol(r, ec_ctx->intrabc_mode_cdf, 6, ACCT_STR);
else if (cm->ext_ibc_config == CONFIG_EXT_IBC_TOP3MODES)
mbmi->ibc_mode =
aom_read_symbol(r, ec_ctx->intrabc_mode_cdf, 4, ACCT_STR);
#endif // CONFIG_EXT_IBC_MODES
int16_t inter_mode_ctx[MODE_CTX_REF_FRAMES];
int_mv ref_mvs[INTRA_FRAME + 1][MAX_MV_REF_CANDIDATES];
av1_find_mv_refs(cm, xd, mbmi, INTRA_FRAME, &xd->ref_mv_info, ref_mvs,
/*global_mvs=*/NULL, inter_mode_ctx);
int_mv nearestmv, nearmv;
av1_find_best_ref_mvs(cm->fr_mv_precision, ref_mvs[INTRA_FRAME], &nearestmv,
&nearmv);
int_mv dv_ref = nearestmv.as_int == 0 ? nearmv : nearestmv;
if (dv_ref.as_int == 0)
av1_find_ref_dv(&dv_ref, &xd->tile, cm->seq_params.mib_size, mi_row,
mi_col);
// Ref DV should not have sub-pel.
int valid_dv = (dv_ref.as_mv.col & 7) == 0 && (dv_ref.as_mv.row & 7) == 0;
dv_ref.as_mv.col = (dv_ref.as_mv.col >> 3) * 8;
dv_ref.as_mv.row = (dv_ref.as_mv.row >> 3) * 8;
valid_dv = valid_dv && assign_dv(cm, xd, &mbmi->mv[0], &dv_ref, mi_row,
mi_col, bsize, r);
if (!valid_dv) {
// Intra bc motion vectors are not valid - signal corrupt frame
aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
"Invalid intrabc dv");
}
}
}
// If delta q is present, reads delta_q index.
// Also reads delta_q loop filter levels, if present.
static void read_delta_q_params(AV1_COMMON *const cm, MACROBLOCKD *const xd,
const int mi_row, const int mi_col,
aom_reader *r) {
DeltaQInfo *const delta_q_info = &cm->delta_q_info;
if (delta_q_info->delta_q_present_flag) {
MB_MODE_INFO *const mbmi = xd->mi[0];
xd->current_qindex += read_delta_qindex(cm, xd, r, mbmi, mi_col, mi_row) *
delta_q_info->delta_q_res;
/* Normative: Clamp to [1,MAXQ] to not interfere with lossless mode */
#if CONFIG_EXTQUANT
xd->current_qindex = clamp(
xd->current_qindex, 1,
cm->seq_params.bit_depth == AOM_BITS_8
? MAXQ_8_BITS
: cm->seq_params.bit_depth == AOM_BITS_10 ? MAXQ_10_BITS : MAXQ);
#else
xd->current_qindex = clamp(xd->current_qindex, 1, MAXQ);
#endif
FRAME_CONTEXT *const ec_ctx = xd->tile_ctx;
if (delta_q_info->delta_lf_present_flag) {
if (delta_q_info->delta_lf_multi) {
const int frame_lf_count =
av1_num_planes(cm) > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2;
for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) {
const int tmp_lvl =
xd->delta_lf[lf_id] +
read_delta_lflevel(cm, r, ec_ctx->delta_lf_multi_cdf[lf_id], mbmi,
mi_col, mi_row) *
delta_q_info->delta_lf_res;
mbmi->delta_lf[lf_id] = xd->delta_lf[lf_id] =
clamp(tmp_lvl, -MAX_LOOP_FILTER, MAX_LOOP_FILTER);
}
} else {
const int tmp_lvl = xd->delta_lf_from_base +
read_delta_lflevel(cm, r, ec_ctx->delta_lf_cdf,
mbmi, mi_col, mi_row) *
delta_q_info->delta_lf_res;
mbmi->delta_lf_from_base = xd->delta_lf_from_base =
clamp(tmp_lvl, -MAX_LOOP_FILTER, MAX_LOOP_FILTER);
}
}
}
}
static void read_intra_frame_mode_info(AV1_COMMON *const cm,
MACROBLOCKD *const xd, int mi_row,
int mi_col, aom_reader *r) {
MB_MODE_INFO *const mbmi = xd->mi[0];
const BLOCK_SIZE bsize = mbmi->sb_type;
struct segmentation *const seg = &cm->seg;
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
if (seg->segid_preskip)
mbmi->segment_id =
read_intra_segment_id(cm, xd, mi_row, mi_col, bsize, r, 0);
mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r);
#if CONFIG_DSPL_RESIDUAL
mbmi->dspl_type = DSPL_NONE;
#endif // CONFIG_DSPL_RESIDUAL
if (!seg->segid_preskip)
mbmi->segment_id =
read_intra_segment_id(cm, xd, mi_row, mi_col, bsize, r, mbmi->skip);
read_cdef(cm, r, xd, mi_col, mi_row);
read_delta_q_params(cm, xd, mi_row, mi_col, r);
mbmi->current_qindex = xd->current_qindex;
mbmi->ref_frame[0] = INTRA_FRAME;
mbmi->ref_frame[1] = NONE_FRAME;
mbmi->palette_mode_info.palette_size[0] = 0;
mbmi->palette_mode_info.palette_size[1] = 0;
mbmi->filter_intra_mode_info.use_filter_intra = 0;
#if CONFIG_ADAPT_FILTER_INTRA
mbmi->adapt_filter_intra_mode_info.use_adapt_filter_intra = 0;
#endif
#if CONFIG_DERIVED_INTRA_MODE
mbmi->use_derived_intra_mode[0] = 0;
mbmi->use_derived_intra_mode[1] = 0;
#endif // CONFIG_DERIVED_INTRA_MODE
xd->above_txfm_context = cm->above_txfm_context[xd->tile.tile_row] + mi_col;
xd->left_txfm_context =
xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
if (av1_allow_intrabc(cm)) {
#if CONFIG_EXT_IBC_MODES
mbmi->ibc_mode = 0;
#endif // CONFIG_EXT_IBC_MODES
read_intrabc_info(cm, xd, mi_row, mi_col, r);
if (is_intrabc_block(mbmi)) return;
}
#if CONFIG_INTRA_ENTROPY
aom_cdf_prob intra_mode_cdf[INTRA_MODES];
av1_get_kf_y_mode_cdf_ml(xd, intra_mode_cdf);
mbmi->mode = (PREDICTION_MODE)aom_read_symbol_nn(
r, intra_mode_cdf, &(ec_ctx->intra_y_mode), INTRA_MODES, ACCT_STR);
#else
#if CONFIG_DERIVED_INTRA_MODE
const int is_dr = aom_read_symbol(
r, get_kf_is_dr_mode_cdf(ec_ctx, xd->above_mbmi, xd->left_mbmi), 2,
ACCT_STR);
if (is_dr) {
if (av1_enable_derived_intra_mode(xd, bsize)) {
mbmi->use_derived_intra_mode[0] = aom_read_symbol(
r,
get_derived_intra_mode_cdf(ec_ctx, xd->above_mbmi, xd->left_mbmi, 0),
2, ACCT_STR);
}
if (mbmi->use_derived_intra_mode[0]) {
mbmi->mode = av1_get_derived_intra_mode(xd, bsize, mbmi);
}
if (!mbmi->use_derived_intra_mode[0]) {
const int index = aom_read_symbol(
r, get_kf_dr_mode_cdf(ec_ctx, xd->above_mbmi, xd->left_mbmi),
DIRECTIONAL_MODES, ACCT_STR);
mbmi->mode = dr_index_to_mode[index];
}
} else {
const int index = aom_read_symbol(
r, get_kf_none_dr_mode_cdf(ec_ctx, xd->above_mbmi, xd->left_mbmi),
NONE_DIRECTIONAL_MODES, ACCT_STR);
mbmi->mode = none_dr_index_to_mode[index];
}
#else
mbmi->mode =
read_intra_mode(r, get_y_mode_cdf(ec_ctx, xd->above_mbmi, xd->left_mbmi));
#endif // CONFIG_DERIVED_INTRA_MODE
#endif // CONFIG_INTRA_ENTROPY
const int use_angle_delta = av1_use_angle_delta(bsize);
if (use_angle_delta && av1_is_directional_mode(mbmi->mode)) {
#if CONFIG_DERIVED_INTRA_MODE
if (!mbmi->use_derived_intra_mode[0])
#endif // CONFIG_DERIVED_INTRA_MODE
{
mbmi->angle_delta[PLANE_TYPE_Y] =
read_angle_delta(r, ec_ctx->angle_delta_cdf[mbmi->mode - V_PRED]);
}
} else {
mbmi->angle_delta[PLANE_TYPE_Y] = 0;
}
if (!cm->seq_params.monochrome && mbmi->chroma_ref_info.is_chroma_ref) {
xd->cfl.is_chroma_reference = 1;
#if CONFIG_INTRA_ENTROPY
aom_cdf_prob uv_mode_cdf[UV_INTRA_MODES];
av1_get_uv_mode_cdf_ml(xd, mbmi->mode, uv_mode_cdf);
mbmi->uv_mode = (UV_PREDICTION_MODE)aom_read_symbol_nn(
r, uv_mode_cdf, &(ec_ctx->intra_uv_mode), UV_INTRA_MODES, ACCT_STR);
#else
mbmi->uv_mode = read_intra_mode_uv(ec_ctx, r, is_cfl_allowed(xd),
#if CONFIG_DERIVED_INTRA_MODE
xd,
#endif // CONFIG_DERIVED_INTRA_MODE
mbmi);
#endif // CONFIG_INTRA_ENTROPY
if (mbmi->uv_mode == UV_CFL_PRED) {
mbmi->cfl_alpha_idx = read_cfl_alphas(ec_ctx, r, &mbmi->cfl_alpha_signs);
}
if (use_angle_delta &&
#if CONFIG_DERIVED_INTRA_MODE
!mbmi->use_derived_intra_mode[1] &&
#endif // CONFIG_DERIVED_INTRA_MODE
av1_is_directional_mode(get_uv_mode(mbmi->uv_mode))) {
mbmi->angle_delta[PLANE_TYPE_UV] =
read_angle_delta(r, ec_ctx->angle_delta_cdf[mbmi->uv_mode - V_PRED]);
} else {
mbmi->angle_delta[PLANE_TYPE_UV] = 0;
}
} else {
// Avoid decoding angle_info if there is is no chroma prediction
mbmi->uv_mode = UV_DC_PRED;
xd->cfl.is_chroma_reference = 0;
}
xd->cfl.store_y = store_cfl_required(cm, xd);
if (av1_allow_palette(cm->allow_screen_content_tools, bsize))
read_palette_mode_info(cm, xd, r);
read_filter_intra_mode_info(cm, xd, r);
#if CONFIG_ADAPT_FILTER_INTRA
read_adapt_filter_intra_mode_info(cm, xd, r);
#endif
}
static int read_mv_component(aom_reader *r, int ref, nmv_component *mvcomp,
MvSubpelPrecision precision) {
(void)ref;
int mag, d, fr, hp;
const int sign = aom_read_symbol(r, mvcomp->sign_cdf, 2, ACCT_STR);
const int mv_class =
aom_read_symbol(r, mvcomp->classes_cdf, MV_CLASSES, ACCT_STR);
const int class0 = mv_class == MV_CLASS_0;
mag = mv_class_base(mv_class);
// Integer part
if (class0) {
d = aom_read_symbol(r, mvcomp->class0_cdf, CLASS0_SIZE, ACCT_STR);
} else {
const int n = mv_class + CLASS0_BITS - 1; // number of bits
d = 0;
for (int i = 0; i < n; ++i)
d |= aom_read_symbol(r, mvcomp->bits_cdf[i], 2, ACCT_STR) << i;
}
mag += (d << 3) + 1;
#if CONFIG_COMPANDED_MV
precision =
AOMMIN(get_companded_mv_precision(sign ? -mag : mag, ref), precision);
#endif // CONFIG_COMPANDED_MV
if (precision > MV_SUBPEL_NONE) {
// Fractional part
#if CONFIG_FLEX_MVRES
fr = aom_read_symbol(
r, class0 ? mvcomp->class0_fp_cdf[d][0] : mvcomp->fp_cdf[0], 2,
ACCT_STR)
<< 1;
fr += precision > MV_SUBPEL_HALF_PRECISION
? aom_read_symbol(r,
class0 ? mvcomp->class0_fp_cdf[d][1 + (fr >> 1)]
: mvcomp->fp_cdf[1 + (fr >> 1)],
2, ACCT_STR)
: 1;
#else
fr = aom_read_symbol(r, class0 ? mvcomp->class0_fp_cdf[d] : mvcomp->fp_cdf,
MV_FP_SIZE, ACCT_STR);
#endif // CONFIG_FLEX_MVRES
// High precision part (if hp is not used, the default value of the hp is 1)
hp = precision > MV_SUBPEL_QTR_PRECISION
? aom_read_symbol(r,
class0 ? mvcomp->class0_hp_cdf : mvcomp->hp_cdf,
2, ACCT_STR)
: 1;
} else {
fr = 3;
hp = 1;
}
// Result
mag += ((fr << 1) | hp);
return sign ? -mag : mag;
}
static INLINE void read_mv(aom_reader *r, MV *mv, const MV *ref,
nmv_context *ctx, MvSubpelPrecision precision) {
MV diff = kZeroMv;
const MV_JOINT_TYPE joint_type =
(MV_JOINT_TYPE)aom_read_symbol(r, ctx->joints_cdf,
MV_JOINTS - NO_NEW_INTER_MODES_JOINT_ZERO,
ACCT_STR) +
NO_NEW_INTER_MODES_JOINT_ZERO;
if (mv_joint_vertical(joint_type))
diff.row = read_mv_component(r, ref->row, &ctx->comps[0], precision);
if (mv_joint_horizontal(joint_type))
diff.col = read_mv_component(r, ref->col, &ctx->comps[1], precision);
#if CONFIG_FLEX_MVRES
MV ref_ = *ref;
lower_mv_precision(&ref_, precision);
mv->row = ref_.row + diff.row;
mv->col = ref_.col + diff.col;
#else
mv->row = ref->row + diff.row;
mv->col = ref->col + diff.col;
#endif // CONFIG_FLEX_MVRES
}
static INLINE void read_dv(aom_reader *r, MV *mv, const MV *ref,
nmv_context *ctx, MvSubpelPrecision precision) {
MV diff = kZeroMv;
const MV_JOINT_TYPE joint_type =
(MV_JOINT_TYPE)aom_read_symbol(r, ctx->joints_cdf, MV_JOINTS, ACCT_STR);
if (mv_joint_vertical(joint_type))
diff.row = read_mv_component(r, ref->row, &ctx->comps[0], precision);
if (mv_joint_horizontal(joint_type))
diff.col = read_mv_component(r, ref->col, &ctx->comps[1], precision);
#if CONFIG_FLEX_MVRES
MV ref_ = *ref;
lower_mv_precision(&ref_, precision);
mv->row = ref_.row + diff.row;
mv->col = ref_.col + diff.col;
#else
mv->row = ref->row + diff.row;
mv->col = ref->col + diff.col;
#endif // CONFIG_FLEX_MVRES
}
static REFERENCE_MODE read_block_reference_mode(AV1_COMMON *cm,
const MACROBLOCKD *xd,
aom_reader *r) {
if (!is_comp_ref_allowed(xd->mi[0]->sb_type)) return SINGLE_REFERENCE;
if (cm->current_frame.reference_mode == REFERENCE_MODE_SELECT) {
const int ctx = av1_get_reference_mode_context(xd);
const REFERENCE_MODE mode = (REFERENCE_MODE)aom_read_symbol(
r, xd->tile_ctx->comp_inter_cdf[ctx], 2, ACCT_STR);
return mode; // SINGLE_REFERENCE or COMPOUND_REFERENCE
} else {
assert(cm->current_frame.reference_mode == SINGLE_REFERENCE);
return cm->current_frame.reference_mode;
}
}
#define READ_REF_BIT(pname) \
aom_read_symbol(r, av1_get_pred_cdf_##pname(xd), 2, ACCT_STR)
static COMP_REFERENCE_TYPE read_comp_reference_type(const MACROBLOCKD *xd,
aom_reader *r) {
const int ctx = av1_get_comp_reference_type_context(xd);
const COMP_REFERENCE_TYPE comp_ref_type =
(COMP_REFERENCE_TYPE)aom_read_symbol(
r, xd->tile_ctx->comp_ref_type_cdf[ctx], 2, ACCT_STR);
return comp_ref_type; // UNIDIR_COMP_REFERENCE or BIDIR_COMP_REFERENCE
}
static void set_ref_frames_for_skip_mode(AV1_COMMON *const cm,
MV_REFERENCE_FRAME ref_frame[2]) {
ref_frame[0] = LAST_FRAME + cm->current_frame.skip_mode_info.ref_frame_idx_0;
ref_frame[1] = LAST_FRAME + cm->current_frame.skip_mode_info.ref_frame_idx_1;
}
// Read the referncence frame
static void read_ref_frames(AV1_COMMON *const cm, MACROBLOCKD *const xd,
aom_reader *r, int segment_id,
MV_REFERENCE_FRAME ref_frame[2]) {
if (xd->mi[0]->skip_mode) {
set_ref_frames_for_skip_mode(cm, ref_frame);
return;
}
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
ref_frame[0] = (MV_REFERENCE_FRAME)get_segdata(&cm->seg, segment_id,
SEG_LVL_REF_FRAME);
ref_frame[1] = NONE_FRAME;
} else if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP) ||
segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) {
ref_frame[0] = LAST_FRAME;
ref_frame[1] = NONE_FRAME;
} else {
const REFERENCE_MODE mode = read_block_reference_mode(cm, xd, r);
if (mode == COMPOUND_REFERENCE) {
const COMP_REFERENCE_TYPE comp_ref_type = read_comp_reference_type(xd, r);
if (comp_ref_type == UNIDIR_COMP_REFERENCE) {
const int bit = READ_REF_BIT(uni_comp_ref_p);
if (bit) {
ref_frame[0] = BWDREF_FRAME;
ref_frame[1] = ALTREF_FRAME;
} else {
const int bit1 = READ_REF_BIT(uni_comp_ref_p1);
if (bit1) {
const int bit2 = READ_REF_BIT(uni_comp_ref_p2);
if (bit2) {
ref_frame[0] = LAST_FRAME;
ref_frame[1] = GOLDEN_FRAME;
} else {
ref_frame[0] = LAST_FRAME;
ref_frame[1] = LAST3_FRAME;
}
} else {
ref_frame[0] = LAST_FRAME;
ref_frame[1] = LAST2_FRAME;
}
}
return;
}
assert(comp_ref_type == BIDIR_COMP_REFERENCE);
const int idx = 1;
const int bit = READ_REF_BIT(comp_ref_p);
// Decode forward references.
if (!bit) {
const int bit1 = READ_REF_BIT(comp_ref_p1);
ref_frame[!idx] = cm->comp_fwd_ref[bit1 ? 1 : 0];
} else {
const int bit2 = READ_REF_BIT(comp_ref_p2);
ref_frame[!idx] = cm->comp_fwd_ref[bit2 ? 3 : 2];
}
// Decode backward references.
const int bit_bwd = READ_REF_BIT(comp_bwdref_p);
if (!bit_bwd) {
const int bit1_bwd = READ_REF_BIT(comp_bwdref_p1);
ref_frame[idx] = cm->comp_bwd_ref[bit1_bwd];
} else {
ref_frame[idx] = cm->comp_bwd_ref[2];
}
} else if (mode == SINGLE_REFERENCE) {
int read_ref_frame = 1;
#if CONFIG_MISC_CHANGES
if (cm->only_one_ref_available) {
ref_frame[0] = LAST_FRAME;
read_ref_frame = 0;
}
#endif // CONFIG_MISC_CHANGES
if (read_ref_frame) {
const int bit0 = READ_REF_BIT(single_ref_p1);
if (bit0) {
const int bit1 = READ_REF_BIT(single_ref_p2);
if (!bit1) {
const int bit5 = READ_REF_BIT(single_ref_p6);
ref_frame[0] = bit5 ? ALTREF2_FRAME : BWDREF_FRAME;
} else {
ref_frame[0] = ALTREF_FRAME;
}
} else {
const int bit2 = READ_REF_BIT(single_ref_p3);
if (bit2) {
const int bit4 = READ_REF_BIT(single_ref_p5);
ref_frame[0] = bit4 ? GOLDEN_FRAME : LAST3_FRAME;
} else {
const int bit3 = READ_REF_BIT(single_ref_p4);
ref_frame[0] = bit3 ? LAST2_FRAME : LAST_FRAME;
}
}
}
ref_frame[1] = NONE_FRAME;
} else {
assert(0 && "Invalid prediction mode.");
}
}
}
static INLINE void read_mb_interp_filter(AV1_COMMON *const cm,
MACROBLOCKD *const xd,
MB_MODE_INFO *const mbmi,
aom_reader *r) {
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
if (!av1_is_interp_needed(xd)) {
set_default_interp_filters(mbmi, cm->interp_filter);
return;
}
if (cm->interp_filter != SWITCHABLE) {
mbmi->interp_filters = av1_broadcast_interp_filter(cm->interp_filter);
} else {
InterpFilter ref0_filter[2] = { EIGHTTAP_REGULAR, EIGHTTAP_REGULAR };
const int enable_dual_filter = cm->seq_params.enable_dual_filter;
for (int dir = 0; dir < 2; ++dir) {
if (dir && !enable_dual_filter) {
ref0_filter[1] = ref0_filter[0];
break;
}
#if CONFIG_SKIP_INTERP_FILTER
if (!av1_mv_has_subpel(mbmi, dir, enable_dual_filter)) continue;
#endif // CONFIG_SKIP_INTERP_FILTER
const int ctx = av1_get_pred_context_switchable_interp(xd, dir);
ref0_filter[dir] = (InterpFilter)aom_read_symbol(
r, ec_ctx->switchable_interp_cdf[ctx], SWITCHABLE_FILTERS, ACCT_STR);
}
// The index system works as: (0, 1) -> (vertical, horizontal) filter types
mbmi->interp_filters.as_filters.x_filter = ref0_filter[1];
mbmi->interp_filters.as_filters.y_filter = ref0_filter[0];
}
}
static void read_intra_block_mode_info(AV1_COMMON *const cm,
MACROBLOCKD *const xd,
MB_MODE_INFO *const mbmi,
aom_reader *r) {
const BLOCK_SIZE bsize = mbmi->sb_type;
const int use_angle_delta = av1_use_angle_delta(bsize);
mbmi->ref_frame[0] = INTRA_FRAME;
mbmi->ref_frame[1] = NONE_FRAME;
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
#if CONFIG_DERIVED_INTRA_MODE
const int ctx = size_group_lookup[bsize];
const int is_dr =
aom_read_symbol(r, ec_ctx->bf_is_dr_mode_cdf[ctx], 2, ACCT_STR);
if (is_dr) {
if (av1_enable_derived_intra_mode(xd, bsize)) {
mbmi->use_derived_intra_mode[0] = aom_read_symbol(
r,
get_derived_intra_mode_cdf(ec_ctx, xd->above_mbmi, xd->left_mbmi, 0),
2, ACCT_STR);
}
if (mbmi->use_derived_intra_mode[0]) {
mbmi->mode = av1_get_derived_intra_mode(xd, bsize, mbmi);
} else {
const int index = aom_read_symbol(r, ec_ctx->bf_dr_mode_cdf[ctx],
DIRECTIONAL_MODES, ACCT_STR);
mbmi->mode = dr_index_to_mode[index];
}
} else {
const int index = aom_read_symbol(r, ec_ctx->bf_none_dr_mode_cdf[ctx],
NONE_DIRECTIONAL_MODES, ACCT_STR);
mbmi->mode = none_dr_index_to_mode[index];
}
#else
mbmi->mode = read_intra_mode(r, ec_ctx->y_mode_cdf[size_group_lookup[bsize]]);
#endif
if (use_angle_delta &&
#if CONFIG_DERIVED_INTRA_MODE
!mbmi->use_derived_intra_mode[0] &&
#endif
av1_is_directional_mode(mbmi->mode)) {
mbmi->angle_delta[PLANE_TYPE_Y] =
read_angle_delta(r, ec_ctx->angle_delta_cdf[mbmi->mode - V_PRED]);
} else {
mbmi->angle_delta[PLANE_TYPE_Y] = 0;
}
xd->cfl.is_chroma_reference = mbmi->chroma_ref_info.is_chroma_ref;
if (!cm->seq_params.monochrome && mbmi->chroma_ref_info.is_chroma_ref) {
#if CONFIG_INTRA_ENTROPY
aom_cdf_prob uv_mode_cdf[UV_INTRA_MODES];
av1_get_uv_mode_cdf_ml(xd, mbmi->mode, uv_mode_cdf);
mbmi->uv_mode = (UV_PREDICTION_MODE)aom_read_symbol_nn(
r, uv_mode_cdf, &(ec_ctx->intra_uv_mode), UV_INTRA_MODES, ACCT_STR);
#else
mbmi->uv_mode = read_intra_mode_uv(ec_ctx, r, is_cfl_allowed(xd),
#if CONFIG_DERIVED_INTRA_MODE
xd,
#endif // CONFIG_DERIVED_INTRA_MODE
mbmi);
#endif // CONFIG_INTRA_ENTROPY
if (mbmi->uv_mode == UV_CFL_PRED) {
mbmi->cfl_alpha_idx =
read_cfl_alphas(xd->tile_ctx, r, &mbmi->cfl_alpha_signs);
}
if (use_angle_delta &&
#if CONFIG_DERIVED_INTRA_MODE
!mbmi->use_derived_intra_mode[1] &&
#endif // CONFIG_DERIVED_INTRA_MODE
av1_is_directional_mode(get_uv_mode(mbmi->uv_mode))) {
mbmi->angle_delta[PLANE_TYPE_UV] =
read_angle_delta(r, ec_ctx->angle_delta_cdf[mbmi->uv_mode - V_PRED]);
} else {
mbmi->angle_delta[PLANE_TYPE_UV] = 0;
}
} else {
// Avoid decoding angle_info if there is is no chroma prediction
mbmi->uv_mode = UV_DC_PRED;
}
xd->cfl.store_y = store_cfl_required(cm, xd);
mbmi->palette_mode_info.palette_size[0] = 0;
mbmi->palette_mode_info.palette_size[1] = 0;
if (av1_allow_palette(cm->allow_screen_content_tools, bsize))
read_palette_mode_info(cm, xd, r);
read_filter_intra_mode_info(cm, xd, r);
#if CONFIG_ADAPT_FILTER_INTRA
mbmi->adapt_filter_intra_mode_info.use_adapt_filter_intra = 0;
#endif
#if CONFIG_ADAPT_FILTER_INTRA
read_adapt_filter_intra_mode_info(cm, xd, r);
#endif
}
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(AV1_COMMON *cm, MACROBLOCKD *xd,
PREDICTION_MODE mode,
MV_REFERENCE_FRAME ref_frame[2], int_mv mv[2],
int_mv ref_mv[2], int_mv nearest_mv[2],
int_mv near_mv[2], int mi_row, int mi_col,
int is_compound, MvSubpelPrecision precision,
aom_reader *r) {
#if CONFIG_NEW_INTER_MODES
// TODO(siroh): Remove this once nearestmv is gone from the function
// signature of assign_mv.
(void)nearest_mv; // Prevent an unused var warning.
#endif // CONFIG_NEW_INTER_MODES
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
MB_MODE_INFO *mbmi = xd->mi[0];
BLOCK_SIZE bsize = mbmi->sb_type;
switch (mode) {
case NEWMV: {
nmv_context *const nmvc = &ec_ctx->nmvc;
read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, precision);
break;
}
#if !CONFIG_NEW_INTER_MODES
case NEARESTMV: {
mv[0].as_int = nearest_mv[0].as_int;
break;
}
#endif // !CONFIG_NEW_INTER_MODES
case NEARMV: {
mv[0].as_int = near_mv[0].as_int;
break;
}
case GLOBALMV: {
mv[0].as_int =
gm_get_motion_vector(&cm->global_motion[ref_frame[0]],
cm->fr_mv_precision, bsize, mi_col, mi_row)
.as_int;
break;
}
case NEW_NEWMV:
#if CONFIG_OPTFLOW_REFINEMENT
case NEW_NEWMV_OPTFLOW:
#endif // CONFIG_OPTFLOW_REFINEMENT
{
assert(is_compound);
for (int i = 0; i < 2; ++i) {
nmv_context *const nmvc = &ec_ctx->nmvc;
read_mv(r, &mv[i].as_mv, &ref_mv[i].as_mv, nmvc, precision);
}
break;
}
#if !CONFIG_NEW_INTER_MODES
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;
}
#endif // !CONFIG_NEW_INTER_MODES
case NEAR_NEARMV:
#if CONFIG_OPTFLOW_REFINEMENT
case NEAR_NEARMV_OPTFLOW:
#endif // CONFIG_OPTFLOW_REFINEMENT
{
assert(is_compound);
mv[0].as_int = near_mv[0].as_int;
mv[1].as_int = near_mv[1].as_int;
break;
}
#if !CONFIG_NEW_INTER_MODES
case NEW_NEARESTMV: {
nmv_context *const nmvc = &ec_ctx->nmvc;
read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, precision);
assert(is_compound);
mv[1].as_int = nearest_mv[1].as_int;
break;
}
case NEAREST_NEWMV: {
nmv_context *const nmvc = &ec_ctx->nmvc;
mv[0].as_int = nearest_mv[0].as_int;
read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, nmvc, precision);
assert(is_compound);
break;
}
#endif // !CONFIG_NEW_INTER_MODES
case NEAR_NEWMV:
#if CONFIG_OPTFLOW_REFINEMENT
case NEAR_NEWMV_OPTFLOW:
#endif // CONFIG_OPTFLOW_REFINEMENT
{
nmv_context *const nmvc = &ec_ctx->nmvc;
mv[0].as_int = near_mv[0].as_int;
read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, nmvc, precision);
assert(is_compound);
break;
}
case NEW_NEARMV:
#if CONFIG_OPTFLOW_REFINEMENT
case NEW_NEARMV_OPTFLOW:
#endif // CONFIG_OPTFLOW_REFINEMENT
{
nmv_context *const nmvc = &ec_ctx->nmvc;
read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, precision);
assert(is_compound);
mv[1].as_int = near_mv[1].as_int;
break;
}
case GLOBAL_GLOBALMV:
#if CONFIG_OPTFLOW_REFINEMENT
case GLOBAL_GLOBALMV_OPTFLOW:
#endif // CONFIG_OPTFLOW_REFINEMENT
{
assert(is_compound);
mv[0].as_int =
gm_get_motion_vector(&cm->global_motion[ref_frame[0]],
cm->fr_mv_precision, bsize, mi_col, mi_row)
.as_int;
mv[1].as_int =
gm_get_motion_vector(&cm->global_motion[ref_frame[1]],
cm->fr_mv_precision, bsize, mi_col, mi_row)
.as_int;
break;
}
default: { return 0; }
}
int ret = is_mv_valid(&mv[0].as_mv);
if (is_compound) {
ret = ret && is_mv_valid(&mv[1].as_mv);
}
return ret;
}
static int read_is_inter_block(AV1_COMMON *const cm, MACROBLOCKD *const xd,
int segment_id, aom_reader *r) {
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
const int frame = get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME);
if (frame < LAST_FRAME) return 0;
return frame != INTRA_FRAME;
}
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) {
return 1;
}
const int ctx = av1_get_intra_inter_context(xd);
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
const int is_inter =
aom_read_symbol(r, ec_ctx->intra_inter_cdf[ctx], 2, ACCT_STR);
return is_inter;
}
#if DEC_MISMATCH_DEBUG
static void dec_dump_logs(AV1_COMMON *cm, MB_MODE_INFO *const mbmi, int mi_row,
int mi_col, int16_t mode_ctx) {
int_mv mv[2] = { { 0 } };
for (int ref = 0; ref < 1 + has_second_ref(mbmi); ++ref)
mv[ref].as_mv = mbmi->mv[ref].as_mv;
const int16_t newmv_ctx = mode_ctx & NEWMV_CTX_MASK;
int16_t zeromv_ctx = -1;
int16_t refmv_ctx = -1;
if (mbmi->mode != NEWMV) {
zeromv_ctx = (mode_ctx >> GLOBALMV_OFFSET) & GLOBALMV_CTX_MASK;
if (mbmi->mode != GLOBALMV)
refmv_ctx = (mode_ctx >> REFMV_OFFSET) & REFMV_CTX_MASK;
}
#define FRAME_TO_CHECK 11
if (cm->current_frame.frame_number == FRAME_TO_CHECK && cm->show_frame == 1) {
printf(
"=== DECODER ===: "
"Frame=%d, (mi_row,mi_col)=(%d,%d), skip_mode=%d, mode=%d, bsize=%d, "
"show_frame=%d, mv[0]=(%d,%d), mv[1]=(%d,%d), ref[0]=%d, "
"ref[1]=%d, motion_mode=%d, mode_ctx=%d, "
"newmv_ctx=%d, zeromv_ctx=%d, refmv_ctx=%d, tx_size=%d\n",
cm->current_frame.frame_number, mi_row, mi_col, mbmi->skip_mode,
mbmi->mode, mbmi->sb_type, cm->show_frame, mv[0].as_mv.row,
mv[0].as_mv.col, mv[1].as_mv.row, mv[1].as_mv.col, mbmi->ref_frame[0],
mbmi->ref_frame[1], mbmi->motion_mode, mode_ctx, newmv_ctx, zeromv_ctx,
refmv_ctx, mbmi->tx_size);
}
}
#endif // DEC_MISMATCH_DEBUG
#if CONFIG_FLEX_MVRES
MvSubpelPrecision av1_read_pb_mv_precision(AV1_COMMON *const cm,
MACROBLOCKD *const xd,
aom_reader *r) {
MB_MODE_INFO *const mbmi = xd->mi[0];
assert(mbmi->max_mv_precision ==
av1_get_mbmi_max_mv_precision(cm, xd->sbi, mbmi));
assert(mbmi->max_mv_precision >= MV_SUBPEL_QTR_PRECISION);
const int down_ctx = av1_get_pb_mv_precision_down_context(cm, xd);
const MvSubpelPrecision max_precision = mbmi->max_mv_precision;
#if DISALLOW_ONE_DOWN_FLEX_MVRES == 2
int down = aom_read_symbol(
r,
xd->tile_ctx->pb_mv_precision_cdf[down_ctx][max_precision -
MV_SUBPEL_QTR_PRECISION],
2, ACCT_STR);
down <<= 1;
#elif DISALLOW_ONE_DOWN_FLEX_MVRES == 1
int down = aom_read_symbol(
r,
xd->tile_ctx->pb_mv_precision_cdf[down_ctx][max_precision -
MV_SUBPEL_QTR_PRECISION],
max_precision, ACCT_STR);
down += (down > 0);
#else
int down = aom_read_symbol(
r,
xd->tile_ctx->pb_mv_precision_cdf[down_ctx][max_precision -
MV_SUBPEL_QTR_PRECISION],
max_precision + 1, ACCT_STR);
#endif // DISALLOW_ONE_DOWN_FLEX_MVRES
return (MvSubpelPrecision)(max_precision - down);
}
#endif // CONFIG_FLEX_MVRES
static void read_interintra_wedge_bits(MB_MODE_INFO *const mbmi,
BLOCK_SIZE bsize, aom_reader *r,
FRAME_CONTEXT *ec_ctx) {
if (is_interintra_wedge_used(bsize)) {
mbmi->use_wedge_interintra =
aom_read_symbol(r, ec_ctx->wedge_interintra_cdf[bsize], 2, ACCT_STR);
if (mbmi->use_wedge_interintra) {
mbmi->interintra_wedge_index = (int8_t)aom_read_symbol(
r, ec_ctx->wedge_idx_cdf[bsize], 16, ACCT_STR);
}
}
}
static void read_interintra_mode_bits(MACROBLOCKD *const xd,
MB_MODE_INFO *const mbmi,
BLOCK_SIZE bsize, aom_reader *r,
FRAME_CONTEXT *ec_ctx) {
#if CONFIG_DERIVED_INTRA_MODE
mbmi->use_derived_intra_mode[0] = 0;
mbmi->use_derived_intra_mode[1] = 0;
if (av1_enable_derived_intra_mode(xd, bsize)) {
mbmi->use_derived_intra_mode[0] = aom_read_symbol(
r, get_derived_intra_mode_cdf(ec_ctx, xd->above_mbmi, xd->left_mbmi, 1),
2, ACCT_STR);
}
if (mbmi->use_derived_intra_mode[0]) {
mbmi->interintra_mode = 0;
return;
}
#else
(void)ec_ctx;
#endif // CONFIG_DERIVED_INTRA_MODE
const int size_group = size_group_lookup[bsize];
#if CONFIG_INTERINTRA_ML
if (is_interintra_ml_supported(xd, mbmi->use_wedge_interintra)) {
mbmi->interintra_mode =
aom_read_symbol(r, xd->tile_ctx->interintra_ml_mode_cdf[size_group],
INTERINTRA_MODES, ACCT_STR);
} else {
mbmi->interintra_mode =
aom_read_symbol(r, xd->tile_ctx->interintra_mode_cdf[size_group],
INTERINTRA_MODES, ACCT_STR);
}
#else
mbmi->interintra_mode =
aom_read_symbol(r, xd->tile_ctx->interintra_mode_cdf[size_group],
INTERINTRA_MODES, ACCT_STR);
#endif // CONFIG_INTERINTRA_ML
}
static void read_interintra_mode_and_wedge_bits(MACROBLOCKD *const xd,
MB_MODE_INFO *const mbmi,
BLOCK_SIZE bsize, aom_reader *r,
FRAME_CONTEXT *ec_ctx) {
// If interintra-ML modes are enabled, wedge is read first, then the mode.
#if CONFIG_INTERINTRA_ML
read_interintra_wedge_bits(mbmi, bsize, r, ec_ctx);
read_interintra_mode_bits(xd, mbmi, bsize, r, ec_ctx);
#else
read_interintra_mode_bits(xd, mbmi, bsize, r, ec_ctx);
read_interintra_wedge_bits(mbmi, bsize, r, ec_ctx);
#endif // CONFIG_INTERINTRA_ML
}
static void read_inter_block_mode_info(AV1Decoder *const pbi,
MACROBLOCKD *const xd,
MB_MODE_INFO *const mbmi, int mi_row,
int mi_col, aom_reader *r) {
AV1_COMMON *const cm = &pbi->common;
const BLOCK_SIZE bsize = mbmi->sb_type;
int_mv nearestmv[2], nearmv[2];
int_mv ref_mvs[MODE_CTX_REF_FRAMES][MAX_MV_REF_CANDIDATES] = { { { 0 } } };
int16_t inter_mode_ctx[MODE_CTX_REF_FRAMES];
int pts[SAMPLES_ARRAY_SIZE], pts_inref[SAMPLES_ARRAY_SIZE];
FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
const SB_INFO *sbi = xd->sbi;
mbmi->uv_mode = UV_DC_PRED;
mbmi->palette_mode_info.palette_size[0] = 0;
mbmi->palette_mode_info.palette_size[1] = 0;
av1_collect_neighbors_ref_counts(xd);
read_ref_frames(cm, xd, r, mbmi->segment_id, mbmi->ref_frame);
const int is_compound = has_second_ref(mbmi);
MV_REFERENCE_FRAME ref_frame = av1_ref_frame_type(mbmi->ref_frame);
av1_find_mv_refs(cm, xd, mbmi, ref_frame, &xd->ref_mv_info, ref_mvs,
/*global_mvs=*/NULL, inter_mode_ctx);
int mode_ctx = av1_mode_context_analyzer(inter_mode_ctx, mbmi->ref_frame);
mbmi->ref_mv_idx = 0;
if (mbmi->skip_mode) {
assert(is_compound);
#if CONFIG_NEW_INTER_MODES
mbmi->mode = NEAR_NEARMV;
mbmi->ref_mv_idx = 0;
#else
mbmi->mode = NEAREST_NEARESTMV;
#endif // CONFIG_NEW_INTER_MODES
set_default_mbmi_mv_precision(cm, mbmi, sbi);
} else {
if (segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP) ||
segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_GLOBALMV)) {
mbmi->mode = GLOBALMV;
set_default_mbmi_mv_precision(cm, mbmi, sbi);
} else {
if (is_compound)
mbmi->mode = read_inter_compound_mode(xd, r, mode_ctx);
else
mbmi->mode = read_inter_mode(ec_ctx, r, mode_ctx);
set_default_mbmi_mv_precision(cm, mbmi, sbi);
#if CONFIG_FLEX_MVRES
if (is_pb_mv_precision_active(cm, mbmi->mode, mbmi->max_mv_precision)) {
mbmi->pb_mv_precision = av1_read_pb_mv_precision(cm, xd, r);
}
#if ADJUST_DRL_FLEX_MVRES
if (av1_use_adjust_drl(mbmi)) {
av1_get_mv_refs_adj(&xd->ref_mv_info, ref_frame,
is_inter_compound_mode(mbmi->mode),
mbmi->pb_mv_precision);
}
#endif // ADJUST_DRL_FLEX_MVRES
#endif // CONFIG_FLEX_MVRES
#if CONFIG_DERIVED_MV
mbmi->derived_mv_allowed = av1_derived_mv_allowed(xd, mbmi);
if (mbmi->derived_mv_allowed) {
mbmi->use_derived_mv = aom_read_symbol(
r, ec_ctx->use_derived_mv_cdf[is_compound][bsize], 2, ACCT_STR);
}
#endif // CONFIG_DERIVED_MV
if (have_drl_index(mbmi->mode)) {
#if CONFIG_NEW_INTER_MODES
read_drl_idx(ec_ctx, cm, mode_ctx, xd, mbmi, r);
#else
read_drl_idx(ec_ctx, cm, xd, mbmi, r);
#endif // CONFIG_NEW_INTER_MODES
}
}
}
if (is_compound != is_inter_compound_mode(mbmi->mode)) {
aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
"Prediction mode %d invalid with ref frame %d %d",
mbmi->mode, mbmi->ref_frame[0], mbmi->ref_frame[1]);
}
if (!is_compound && mbmi->mode != GLOBALMV) {
av1_find_best_ref_mvs(cm->fr_mv_precision, ref_mvs[mbmi->ref_frame[0]],
&nearestmv[0], &nearmv[0]);
}
if (is_compound && mbmi->mode != GLOBAL_GLOBALMV) {
#if CONFIG_NEW_INTER_MODES
int ref_mv_idx = mbmi->ref_mv_idx;
#else
int ref_mv_idx = mbmi->ref_mv_idx + 1;
#endif // CONFIG_NEW_INTER_MODES
#if CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
if (av1_use_adjust_drl(mbmi)) {
ref_mv_idx = mbmi->ref_mv_idx_adj;
nearestmv[0] = xd->ref_mv_info.ref_mv_stack_adj[0].this_mv;
nearestmv[1] = xd->ref_mv_info.ref_mv_stack_adj[0].comp_mv;
nearmv[0] = xd->ref_mv_info.ref_mv_stack_adj[ref_mv_idx].this_mv;
nearmv[1] = xd->ref_mv_info.ref_mv_stack_adj[ref_mv_idx].comp_mv;
} else {
#endif // CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
nearestmv[0] = xd->ref_mv_info.ref_mv_stack[ref_frame][0].this_mv;
nearestmv[1] = xd->ref_mv_info.ref_mv_stack[ref_frame][0].comp_mv;
nearmv[0] = xd->ref_mv_info.ref_mv_stack[ref_frame][ref_mv_idx].this_mv;
nearmv[1] = xd->ref_mv_info.ref_mv_stack[ref_frame][ref_mv_idx].comp_mv;
#if CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
}
#endif // CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
assert(IMPLIES(cm->cur_frame_force_integer_mv,
cm->fr_mv_precision == MV_SUBPEL_NONE));
lower_mv_precision(&nearestmv[0].as_mv, cm->fr_mv_precision);
lower_mv_precision(&nearestmv[1].as_mv, cm->fr_mv_precision);
lower_mv_precision(&nearmv[0].as_mv, cm->fr_mv_precision);
lower_mv_precision(&nearmv[1].as_mv, cm->fr_mv_precision);
#if CONFIG_NEW_INTER_MODES
} else if (mbmi->mode == NEARMV) {
nearmv[0] =
xd->ref_mv_info.ref_mv_stack[mbmi->ref_frame[0]][mbmi->ref_mv_idx]
.this_mv;
}
#else
} else if (mbmi->ref_mv_idx > 0 && mbmi->mode == NEARMV) {
nearmv[0] =
xd->ref_mv_info.ref_mv_stack[mbmi->ref_frame[0]][1 + mbmi->ref_mv_idx]
.this_mv;
}
#endif // CONFIG_NEW_INTER_MODES
int_mv ref_mv[2];
ref_mv[0] = nearestmv[0];
ref_mv[1] = nearestmv[1];
if (is_compound) {
int ref_mv_idx = mbmi->ref_mv_idx;
#if !CONFIG_NEW_INTER_MODES
// Special case: NEAR_NEWMV and NEW_NEARMV modes use
// 1 + mbmi->ref_mv_idx (like NEARMV) instead of
// mbmi->ref_mv_idx (like NEWMV)
if (mbmi->mode == NEAR_NEWMV || mbmi->mode == NEW_NEARMV)
ref_mv_idx = 1 + mbmi->ref_mv_idx;
#endif // !CONFIG_NEW_INTER_MODES
#if CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
if (av1_use_adjust_drl(mbmi)) {
ref_mv_idx = mbmi->ref_mv_idx_adj;
ref_mv[0] = xd->ref_mv_info.ref_mv_stack_adj[ref_mv_idx].this_mv;
ref_mv[1] = xd->ref_mv_info.ref_mv_stack_adj[ref_mv_idx].comp_mv;
} else {
#endif // CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
// TODO(jingning, yunqing): Do we need a lower_mv_precision() call here?
if (compound_ref0_mode(mbmi->mode) == NEWMV)
ref_mv[0] = xd->ref_mv_info.ref_mv_stack[ref_frame][ref_mv_idx].this_mv;
if (compound_ref1_mode(mbmi->mode) == NEWMV)
ref_mv[1] = xd->ref_mv_info.ref_mv_stack[ref_frame][ref_mv_idx].comp_mv;
#if CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
}
#endif // CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
} else {
if (mbmi->mode == NEWMV) {
#if CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
if (av1_use_adjust_drl(mbmi)) {
if (xd->ref_mv_info.ref_mv_count_adj > 0)
ref_mv[0] =
xd->ref_mv_info.ref_mv_stack_adj[mbmi->ref_mv_idx_adj].this_mv;
} else {
#endif // CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
if (xd->ref_mv_info.ref_mv_count[ref_frame] > 0)
ref_mv[0] =
xd->ref_mv_info.ref_mv_stack[ref_frame][mbmi->ref_mv_idx].this_mv;
#if CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
}
#endif // CONFIG_FLEX_MVRES && ADJUST_DRL_FLEX_MVRES
}
}
#if CONFIG_NEW_INTER_MODES
if (mbmi->skip_mode) {
assert(mbmi->mode == NEAR_NEARMV);
assert(mbmi->ref_mv_idx == 0);
}
#else
if (mbmi->skip_mode) assert(mbmi->mode == NEAREST_NEARESTMV);
#endif // CONFIG_NEW_INTER_MODES
int mv_corrupted_flag = !assign_mv(
cm, xd, mbmi->mode, mbmi->ref_frame, mbmi->mv, ref_mv, nearestmv, nearmv,
mi_row, mi_col, is_compound, mbmi->pb_mv_precision, r);
aom_merge_corrupted_flag(&xd->corrupted, mv_corrupted_flag);
#if CONFIG_DERIVED_MV
if (mbmi->derived_mv_allowed && mbmi->use_derived_mv) {
assert(mbmi->ref_mv_idx == 0);
const int num_planes = av1_num_planes(cm);
for (int ref = 0; ref < 1 + has_second_ref(mbmi); ++ref) {
const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
const RefCntBuffer *ref_buf = get_ref_frame_buf(cm, frame);
const struct scale_factors *ref_scale_factors =
get_ref_scale_factors_const(cm, frame);
xd->block_ref_scale_factors[ref] = ref_scale_factors;
av1_setup_pre_planes(xd, ref, &ref_buf->buf, mi_row, mi_col,
ref_scale_factors, num_planes,
&mbmi->chroma_ref_info);
mbmi->derived_mv[ref] = av1_derive_mv(
cm, xd, ref, mbmi, xd->plane[0].dst.buf, xd->plane[0].dst.stride);
#if !CONFIG_DERIVED_MV_NO_PD
mbmi->mv[ref].as_mv = mbmi->derived_mv[ref];
#endif // !CONFIG_DERIVED_MV_NO_PD
}
}
#endif // CONFIG_DERIVED_MV
mbmi->use_wedge_interintra = 0;
if (cm->seq_params.enable_interintra_compound && !mbmi->skip_mode &&
is_interintra_allowed(mbmi)) {
const int bsize_group = size_group_lookup[bsize];
const int interintra =
aom_read_symbol(r, ec_ctx->interintra_cdf[bsize_group], 2, ACCT_STR);
assert(mbmi->ref_frame[1] == NONE_FRAME);
if (interintra) {
mbmi->ref_frame[1] = INTRA_FRAME;
mbmi->angle_delta[PLANE_TYPE_Y] = 0;
mbmi->angle_delta[PLANE_TYPE_UV] = 0;
mbmi->filter_intra_mode_info.use_filter_intra = 0;
#if CONFIG_ADAPT_FILTER_INTRA
mbmi->adapt_filter_intra_mode_info.use_adapt_filter_intra = 0;
#endif
read_interintra_mode_and_wedge_bits(xd, mbmi, bsize, r, ec_ctx);
}
}
for (int ref = 0; ref < 1 + has_second_ref(mbmi); ++ref) {
const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
xd->block_ref_scale_factors[ref] = get_ref_scale_factors_const(cm, frame);
}
mbmi->motion_mode = SIMPLE_TRANSLATION;
#if CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
if (!mbmi->skip_mode && !has_second_ref(mbmi)) {
mbmi->num_proj_ref = av1_findSamples(cm, xd,
#if CONFIG_ENHANCED_WARPED_MOTION
&xd->ref_mv_info,
#endif // CONFIG_ENHANCED_WARPED_MOTION
pts, pts_inref);
}
#else
if (is_motion_variation_allowed_bsize(mbmi->sb_type, mi_row, mi_col) &&
!mbmi->skip_mode && !has_second_ref(mbmi)) {
mbmi->num_proj_ref = av1_findSamples(cm, xd,
#if CONFIG_ENHANCED_WARPED_MOTION
&xd->ref_mv_info,
#endif // CONFIG_ENHANCED_WARPED_MOTION
pts, pts_inref);
}
#endif // CONFIG_EXT_WARP && CONFIG_SUB8X8_WARP
av1_count_overlappable_neighbors(cm, xd);
if (mbmi->ref_frame[1] != INTRA_FRAME)
mbmi->motion_mode = read_motion_mode(cm, xd, mbmi, r);
// init
mbmi->comp_group_idx = 0;
mbmi->compound_idx = 1;
mbmi->interinter_comp.type = COMPOUND_AVERAGE;
#if CONFIG_OPTFLOW_REFINEMENT
if (has_second_ref(mbmi) && !mbmi->skip_mode && mbmi->mode <= NEW_NEWMV) {
#else
if (has_second_ref(mbmi) && !mbmi->skip_mode) {
#endif // CONFIG_OPTFLOW_REFINEMENT
// Read idx to indicate current compound inter prediction mode group
const int masked_compound_used = is_any_masked_compound_used(bsize) &&
cm->seq_params.enable_masked_compound;
if (masked_compound_used) {
const int ctx_comp_group_idx = get_comp_group_idx_context(xd);
mbmi->comp_group_idx = (uint8_t)aom_read_symbol(
r, ec_ctx->comp_group_idx_cdf[ctx_comp_group_idx], 2, ACCT_STR);
}
if (mbmi->comp_group_idx == 0) {
if (cm->seq_params.order_hint_info.enable_dist_wtd_comp) {
const int comp_index_ctx = get_comp_index_context(cm, xd);
mbmi->compound_idx = (uint8_t)aom_read_symbol(
r, ec_ctx->compound_index_cdf[comp_index_ctx], 2, ACCT_STR);
mbmi->interinter_comp.type =
mbmi->compound_idx ? COMPOUND_AVERAGE : COMPOUND_DISTWTD;
} else {
// Distance-weighted compound is disabled, so always use average
mbmi->compound_idx = 1;
mbmi->interinter_comp.type = COMPOUND_AVERAGE;
}
} else {
assert(cm->current_frame.reference_mode != SINGLE_REFERENCE &&
is_inter_compound_mode(mbmi->mode) &&
mbmi->motion_mode == SIMPLE_TRANSLATION);
assert(masked_compound_used);
// compound_diffwtd, wedge
if (is_interinter_compound_used(COMPOUND_WEDGE, bsize))
mbmi->interinter_comp.type =
COMPOUND_WEDGE + aom_read_symbol(r,
ec_ctx->compound_type_cdf[bsize],
MASKED_COMPOUND_TYPES, ACCT_STR);
else
mbmi->interinter_comp.type = COMPOUND_DIFFWTD;
if (mbmi->interinter_comp.type == COMPOUND_WEDGE) {
assert(is_interinter_compound_used(COMPOUND_WEDGE, bsize));
mbmi->interinter_comp.wedge_index = (int8_t)aom_read_symbol(
r, ec_ctx->wedge_idx_cdf[bsize], 16, ACCT_STR);
mbmi->interinter_comp.wedge_sign = (int8_t)aom_read_bit(r, ACCT_STR);
} else {
assert(mbmi->interinter_comp.type == COMPOUND_DIFFWTD);
mbmi->interinter_comp.mask_type =
aom_read_literal(r, MAX_DIFFWTD_MASK_BITS, ACCT_STR);
}
}
}
read_mb_interp_filter(cm, xd, mbmi, r);
if (mbmi->motion_mode == WARPED_CAUSAL) {
mbmi->wm_params.wmtype = DEFAULT_WMTYPE;
mbmi->wm_params.invalid = 0;
MV mv = mbmi->mv[0].as_mv;
#if CONFIG_DERIVED_MV
// TODO(huisu): this introduces parsing depenency for warped motion.
if (mbmi->derived_mv_allowed && mbmi->use_derived_mv) {
mv = mbmi->derived_mv[0];
}
#endif // CONFIG_DERIVED_MV
if (mbmi->num_proj_ref > 1) {
mbmi->num_proj_ref =
av1_selectSamples(&mv, pts, pts_inref, mbmi->num_proj_ref, bsize);
}
if (av1_find_projection(mbmi->num_proj_ref, pts, pts_inref, bsize, mv.row,
mv.col, &mbmi->wm_params, mi_row, mi_col)) {
#if WARPED_MOTION_DEBUG
printf("Warning: unexpected warped model from aomenc\n");
#endif
mbmi->wm_params.invalid = 1;
}
}
xd->cfl.is_chroma_reference = mbmi->chroma_ref_info.is_chroma_ref;
xd->cfl.store_y = store_cfl_required(cm, xd);
#if CONFIG_REF_MV_BANK
av1_update_ref_mv_bank(xd, mbmi, cm->seq_params.mib_size);
#endif // CONFIG_REF_MV_BANK
#if DEC_MISMATCH_DEBUG
dec_dump_logs(cm, mi, mi_row, mi_col, mode_ctx);
#endif // DEC_MISMATCH_DEBUG
}
static void read_inter_frame_mode_info(AV1Decoder *const pbi,
MACROBLOCKD *const xd, int mi_row,
int mi_col, aom_reader *r) {
AV1_COMMON *const cm = &pbi->common;
MB_MODE_INFO *const mbmi = xd->mi[0];
int inter_block = 1;
mbmi->mv[0].as_int = 0;
mbmi->mv[1].as_int = 0;
mbmi->segment_id = read_inter_segment_id(cm, xd, mi_row, mi_col, 1, r);
mbmi->max_mv_precision = cm->fr_mv_precision;
mbmi->pb_mv_precision = cm->fr_mv_precision;
#if CONFIG_DERIVED_MV
mbmi->derived_mv_allowed = mbmi->use_derived_mv = 0;
#endif // CONFIG_DERIVED_MV
mbmi->skip_mode = read_skip_mode(cm, xd, mbmi->segment_id, r);
#if CONFIG_DERIVED_MV
if (mbmi->skip_mode) {
mbmi->mode = NEAR_NEARMV;
mbmi->derived_mv_allowed = av1_derived_mv_allowed(xd, mbmi);
if (mbmi->derived_mv_allowed) {
mbmi->use_derived_mv = aom_read_symbol(
r, xd->tile_ctx->use_derived_mv_cdf[2][mbmi->sb_type], 2, ACCT_STR);
}
}
#endif // CONFIG_DERIVED_MV
if (mbmi->skip_mode)
mbmi->skip = 1;
else
mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r);
if (!cm->seg.segid_preskip)
mbmi->segment_id = read_inter_segment_id(cm, xd, mi_row, mi_col, 0, r);
read_cdef(cm, r, xd, mi_col, mi_row);
read_delta_q_params(cm, xd, mi_row, mi_col, r);
if (!mbmi->skip_mode)
inter_block = read_is_inter_block(cm, xd, mbmi->segment_id, r);
#if CONFIG_DSPL_RESIDUAL
if (!mbmi->skip && inter_block &&
block_size_wide[mbmi->sb_type] >= DSPL_MIN_PARTITION_SIDE &&
block_size_high[mbmi->sb_type] >= DSPL_MIN_PARTITION_SIDE)
mbmi->dspl_type = read_dspl_type(cm, xd, mbmi->segment_id, r);
else
mbmi->dspl_type = DSPL_NONE;
#endif // CONFIG_DSPL_RESIDUAL
mbmi->current_qindex = xd->current_qindex;
xd->above_txfm_context = cm->above_txfm_context[xd->tile.tile_row] + mi_col;
xd->left_txfm_context =
xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
if (inter_block)
read_inter_block_mode_info(pbi, xd, mbmi, mi_row, mi_col, r);
else
read_intra_block_mode_info(cm, xd, mbmi, r);
}
static void intra_copy_frame_mvs(AV1_COMMON *const cm, int mi_row, int mi_col,
int x_mis, int y_mis) {
const int frame_mvs_stride = ROUND_POWER_OF_TWO(cm->mi_cols, 1);
MV_REF *frame_mvs =
cm->cur_frame->mvs + (mi_row >> 1) * frame_mvs_stride + (mi_col >> 1);
x_mis = ROUND_POWER_OF_TWO(x_mis, 1);
y_mis = ROUND_POWER_OF_TWO(y_mis, 1);
for (int h = 0; h < y_mis; h++) {
MV_REF *mv = frame_mvs;
for (int w = 0; w < x_mis; w++) {
mv->ref_frame = NONE_FRAME;
mv++;
}
frame_mvs += frame_mvs_stride;
}
}
void av1_read_mode_info(AV1Decoder *const pbi, MACROBLOCKD *xd, int mi_row,
int mi_col, aom_reader *r, int x_mis, int y_mis) {
AV1_COMMON *const cm = &pbi->common;
MB_MODE_INFO *const mi = xd->mi[0];
mi->use_intrabc = 0;
#if CONFIG_EXT_IBC_MODES
mi->ibc_mode = 0;
#endif // CONFIG_EXT_IBC_MODES
#if CONFIG_DERIVED_INTRA_MODE
mi->use_derived_intra_mode[0] = 0;
mi->use_derived_intra_mode[1] = 0;
#endif // CONFIG_DERIVED_INTRA_MODE
#if CONFIG_DERIVED_MV
mi->derived_mv_allowed = mi->use_derived_mv = 0;
#endif // CONFIG_DERIVED_MV
mi->ref_mv_idx = 0;
if (frame_is_intra_only(cm)) {
read_intra_frame_mode_info(cm, xd, mi_row, mi_col, r);
if (pbi->common.seq_params.order_hint_info.enable_ref_frame_mvs)
intra_copy_frame_mvs(cm, mi_row, mi_col, x_mis, y_mis);
} else {
read_inter_frame_mode_info(pbi, xd, mi_row, mi_col, r);
if (pbi->common.seq_params.order_hint_info.enable_ref_frame_mvs)
av1_copy_frame_mvs(cm, mi, mi_row, mi_col, x_mis, y_mis);
}
}