Google Git
Sign in
aomedia / aom / e5848dea5a430763af4 / . / vp10 / encoder / bitstream.c
blob: d63c5d313a0b6ea3e007e5c40688b7a1ace5edce [file] [log] [blame]
/*
* 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 <stdio.h>
#include <limits.h>
#include "vpx/vpx_encoder.h"
#include "vpx_dsp/bitwriter_buffer.h"
#include "vpx_dsp/vpx_dsp_common.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx_ports/mem_ops.h"
#include "vpx_ports/system_state.h"
#include "vp10/common/entropy.h"
#include "vp10/common/entropymode.h"
#include "vp10/common/entropymv.h"
#include "vp10/common/mvref_common.h"
#include "vp10/common/pred_common.h"
#include "vp10/common/reconinter.h"
#include "vp10/common/seg_common.h"
#include "vp10/common/tile_common.h"
#if CONFIG_ANS
#include "vp10/encoder/buf_ans.h"
#endif // CONFIG_ANS
#include "vp10/encoder/cost.h"
#include "vp10/encoder/bitstream.h"
#include "vp10/encoder/encodemv.h"
#include "vp10/encoder/mcomp.h"
#include "vp10/encoder/segmentation.h"
#include "vp10/encoder/subexp.h"
#include "vp10/encoder/tokenize.h"
static const struct vp10_token intra_mode_encodings[INTRA_MODES] = {
{0, 1}, {6, 3}, {28, 5}, {30, 5}, {58, 6}, {59, 6}, {126, 7}, {127, 7},
{62, 6}, {2, 2}};
#if CONFIG_EXT_INTERP
static const struct vp10_token switchable_interp_encodings[SWITCHABLE_FILTERS] =
{{0, 1}, {4, 3}, {6, 3}, {5, 3}, {7, 3}};
#else
static const struct vp10_token switchable_interp_encodings[SWITCHABLE_FILTERS] =
{{0, 1}, {2, 2}, {3, 2}};
#endif // CONFIG_EXT_INTERP
#if CONFIG_EXT_PARTITION_TYPES
static const struct vp10_token ext_partition_encodings[EXT_PARTITION_TYPES] =
{{0, 1}, {4, 3}, {12, 4}, {7, 3}, {10, 4}, {11, 4}, {26, 5}, {27, 5}};
#endif
static const struct vp10_token partition_encodings[PARTITION_TYPES] =
{{0, 1}, {2, 2}, {6, 3}, {7, 3}};
#if !CONFIG_REF_MV
static const struct vp10_token inter_mode_encodings[INTER_MODES] =
#if CONFIG_EXT_INTER
{{2, 2}, {6, 3}, {0, 1}, {14, 4}, {15, 4}};
#else
{{2, 2}, {6, 3}, {0, 1}, {7, 3}};
#endif // CONFIG_EXT_INTER
#endif
#if CONFIG_EXT_INTER
static const struct vp10_token inter_compound_mode_encodings
[INTER_COMPOUND_MODES] = {
{2, 2}, {50, 6}, {51, 6}, {24, 5}, {52, 6}, {53, 6},
{54, 6}, {55, 6}, {0, 1}, {7, 3}
};
#endif // CONFIG_EXT_INTER
static const struct vp10_token palette_size_encodings[] = {
{0, 1}, {2, 2}, {6, 3}, {14, 4}, {30, 5}, {62, 6}, {63, 6},
};
static const struct vp10_token
palette_color_encodings[PALETTE_MAX_SIZE - 1][PALETTE_MAX_SIZE] = {
{{0, 1}, {1, 1}}, // 2 colors
{{0, 1}, {2, 2}, {3, 2}}, // 3 colors
{{0, 1}, {2, 2}, {6, 3}, {7, 3}}, // 4 colors
{{0, 1}, {2, 2}, {6, 3}, {14, 4}, {15, 4}}, // 5 colors
{{0, 1}, {2, 2}, {6, 3}, {14, 4}, {30, 5}, {31, 5}}, // 6 colors
{{0, 1}, {2, 2}, {6, 3}, {14, 4}, {30, 5}, {62, 6}, {63, 6}}, // 7 colors
{{0, 1}, {2, 2}, {6, 3}, {14, 4},
{30, 5}, {62, 6}, {126, 7}, {127, 7}}, // 8 colors
};
static const struct vp10_token
tx_size_encodings[TX_SIZES - 1][TX_SIZES] = {
{{0, 1}, {1, 1}}, // Max tx_size is 8X8
{{0, 1}, {2, 2}, {3, 2}}, // Max tx_size is 16X16
{{0, 1}, {2, 2}, {6, 3}, {7, 3}}, // Max tx_size is 32X32
};
static INLINE void write_uniform(vp10_writer *w, int n, int v) {
int l = get_unsigned_bits(n);
int m = (1 << l) - n;
if (l == 0)
return;
if (v < m) {
vp10_write_literal(w, v, l - 1);
} else {
vp10_write_literal(w, m + ((v - m) >> 1), l - 1);
vp10_write_literal(w, (v - m) & 1, 1);
}
}
#if CONFIG_EXT_TX
static struct vp10_token ext_tx_inter_encodings[EXT_TX_SETS_INTER][TX_TYPES];
static struct vp10_token ext_tx_intra_encodings[EXT_TX_SETS_INTRA][TX_TYPES];
#else
static struct vp10_token ext_tx_encodings[TX_TYPES];
#endif // CONFIG_EXT_TX
#if CONFIG_GLOBAL_MOTION
static struct vp10_token global_motion_types_encodings[GLOBAL_MOTION_TYPES];
#endif // CONFIG_GLOBAL_MOTION
#if CONFIG_EXT_INTRA
static struct vp10_token intra_filter_encodings[INTRA_FILTERS];
#endif // CONFIG_EXT_INTRA
#if CONFIG_EXT_INTER
static struct vp10_token interintra_mode_encodings[INTERINTRA_MODES];
#endif // CONFIG_EXT_INTER
#if CONFIG_OBMC || CONFIG_WARPED_MOTION
static struct vp10_token motvar_encodings[MOTION_VARIATIONS];
#endif // CONFIG_OBMC || CONFIG_WARPED_MOTION
void vp10_encode_token_init(void) {
#if CONFIG_EXT_TX
int s;
for (s = 1; s < EXT_TX_SETS_INTER; ++s) {
vp10_tokens_from_tree(ext_tx_inter_encodings[s], vp10_ext_tx_inter_tree[s]);
}
for (s = 1; s < EXT_TX_SETS_INTRA; ++s) {
vp10_tokens_from_tree(ext_tx_intra_encodings[s], vp10_ext_tx_intra_tree[s]);
}
#else
vp10_tokens_from_tree(ext_tx_encodings, vp10_ext_tx_tree);
#endif // CONFIG_EXT_TX
#if CONFIG_EXT_INTRA
vp10_tokens_from_tree(intra_filter_encodings, vp10_intra_filter_tree);
#endif // CONFIG_EXT_INTRA
#if CONFIG_EXT_INTER
vp10_tokens_from_tree(interintra_mode_encodings, vp10_interintra_mode_tree);
#endif // CONFIG_EXT_INTER
#if CONFIG_OBMC || CONFIG_WARPED_MOTION
vp10_tokens_from_tree(motvar_encodings, vp10_motvar_tree);
#endif // CONFIG_OBMC || CONFIG_WARPED_MOTION
#if CONFIG_GLOBAL_MOTION
vp10_tokens_from_tree(global_motion_types_encodings,
vp10_global_motion_types_tree);
#endif // CONFIG_GLOBAL_MOTION
}
static void write_intra_mode(vp10_writer *w, PREDICTION_MODE mode,
const vpx_prob *probs) {
vp10_write_token(w, vp10_intra_mode_tree, probs, &intra_mode_encodings[mode]);
}
#if CONFIG_EXT_INTER
static void write_interintra_mode(vp10_writer *w, INTERINTRA_MODE mode,
const vpx_prob *probs) {
vp10_write_token(w, vp10_interintra_mode_tree, probs,
&interintra_mode_encodings[mode]);
}
#endif // CONFIG_EXT_INTER
static void write_inter_mode(VP10_COMMON *cm,
vp10_writer *w, PREDICTION_MODE mode,
#if CONFIG_REF_MV && CONFIG_EXT_INTER
int is_compound,
#endif // CONFIG_REF_MV && CONFIG_EXT_INTER
const int16_t mode_ctx) {
#if CONFIG_REF_MV
const int16_t newmv_ctx = mode_ctx & NEWMV_CTX_MASK;
const vpx_prob newmv_prob = cm->fc->newmv_prob[newmv_ctx];
#if CONFIG_EXT_INTER
vp10_write(w, mode != NEWMV && mode != NEWFROMNEARMV, newmv_prob);
if (!is_compound && (mode == NEWMV || mode == NEWFROMNEARMV))
vp10_write(w, mode == NEWFROMNEARMV, cm->fc->new2mv_prob);
if (mode != NEWMV && mode != NEWFROMNEARMV) {
#else
vp10_write(w, mode != NEWMV, newmv_prob);
if (mode != NEWMV) {
#endif // CONFIG_EXT_INTER
const int16_t zeromv_ctx = (mode_ctx >> ZEROMV_OFFSET) & ZEROMV_CTX_MASK;
const vpx_prob zeromv_prob = cm->fc->zeromv_prob[zeromv_ctx];
if (mode_ctx & (1 << ALL_ZERO_FLAG_OFFSET)) {
assert(mode == ZEROMV);
return;
}
vp10_write(w, mode != ZEROMV, zeromv_prob);
if (mode != ZEROMV) {
int16_t refmv_ctx = (mode_ctx >> REFMV_OFFSET) & REFMV_CTX_MASK;
vpx_prob refmv_prob;
if (mode_ctx & (1 << SKIP_NEARESTMV_OFFSET))
refmv_ctx = 6;
if (mode_ctx & (1 << SKIP_NEARMV_OFFSET))
refmv_ctx = 7;
if (mode_ctx & (1 << SKIP_NEARESTMV_SUB8X8_OFFSET))
refmv_ctx = 8;
refmv_prob = cm->fc->refmv_prob[refmv_ctx];
vp10_write(w, mode != NEARESTMV, refmv_prob);
}
}
#else
const vpx_prob *const inter_probs = cm->fc->inter_mode_probs[mode_ctx];
assert(is_inter_mode(mode));
vp10_write_token(w, vp10_inter_mode_tree, inter_probs,
&inter_mode_encodings[INTER_OFFSET(mode)]);
#endif
}
#if CONFIG_REF_MV
static void write_drl_idx(const VP10_COMMON *cm,
const MB_MODE_INFO *mbmi,
const MB_MODE_INFO_EXT *mbmi_ext,
vp10_writer *w) {
uint8_t ref_frame_type = vp10_ref_frame_type(mbmi->ref_frame);
assert(mbmi->ref_mv_idx < 3);
if (mbmi->mode == NEWMV) {
int idx;
for (idx = 0; idx < 2; ++idx) {
if (mbmi_ext->ref_mv_count[ref_frame_type] > idx + 1) {
uint8_t drl_ctx =
vp10_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx);
vpx_prob drl_prob = cm->fc->drl_prob[drl_ctx];
vp10_write(w, mbmi->ref_mv_idx != idx, drl_prob);
if (mbmi->ref_mv_idx == idx)
return;
}
}
return;
}
if (mbmi->mode == NEARMV) {
int idx;
// TODO(jingning): Temporary solution to compensate the NEARESTMV offset.
for (idx = 1; idx < 3; ++idx) {
if (mbmi_ext->ref_mv_count[ref_frame_type] > idx + 1) {
uint8_t drl_ctx =
vp10_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx);
vpx_prob drl_prob = cm->fc->drl_prob[drl_ctx];
vp10_write(w, mbmi->ref_mv_idx != (idx - 1), drl_prob);
if (mbmi->ref_mv_idx == (idx - 1))
return;
}
}
return;
}
}
#endif
#if CONFIG_EXT_INTER
static void write_inter_compound_mode(VP10_COMMON *cm, vp10_writer *w,
PREDICTION_MODE mode,
const int16_t mode_ctx) {
const vpx_prob *const inter_compound_probs =
cm->fc->inter_compound_mode_probs[mode_ctx];
assert(is_inter_compound_mode(mode));
vp10_write_token(w, vp10_inter_compound_mode_tree, inter_compound_probs,
&inter_compound_mode_encodings[INTER_COMPOUND_OFFSET(mode)]);
}
#endif // CONFIG_EXT_INTER
static void encode_unsigned_max(struct vpx_write_bit_buffer *wb,
int data, int max) {
vpx_wb_write_literal(wb, data, get_unsigned_bits(max));
}
static void prob_diff_update(const vpx_tree_index *tree,
vpx_prob probs[/*n - 1*/],
const unsigned int counts[/*n - 1*/],
int n, vp10_writer *w) {
int i;
unsigned int branch_ct[32][2];
// Assuming max number of probabilities <= 32
assert(n <= 32);
vp10_tree_probs_from_distribution(tree, branch_ct, counts);
for (i = 0; i < n - 1; ++i)
vp10_cond_prob_diff_update(w, &probs[i], branch_ct[i]);
}
static int prob_diff_update_savings(const vpx_tree_index *tree,
vpx_prob probs[/*n - 1*/],
const unsigned int counts[/*n - 1*/],
int n) {
int i;
unsigned int branch_ct[32][2];
int savings = 0;
// Assuming max number of probabilities <= 32
assert(n <= 32);
vp10_tree_probs_from_distribution(tree, branch_ct, counts);
for (i = 0; i < n - 1; ++i) {
savings += vp10_cond_prob_diff_update_savings(&probs[i],
branch_ct[i]);
}
return savings;
}
#if CONFIG_VAR_TX
static void write_tx_size_inter(const VP10_COMMON *cm,
const MACROBLOCKD *xd,
const MB_MODE_INFO *mbmi,
TX_SIZE tx_size, int blk_row, int blk_col,
vp10_writer *w) {
const int tx_row = blk_row >> 1;
const int tx_col = blk_col >> 1;
int max_blocks_high = num_4x4_blocks_high_lookup[mbmi->sb_type];
int max_blocks_wide = num_4x4_blocks_wide_lookup[mbmi->sb_type];
int ctx = txfm_partition_context(xd->above_txfm_context + tx_col,
xd->left_txfm_context + tx_row,
tx_size);
if (xd->mb_to_bottom_edge < 0)
max_blocks_high += xd->mb_to_bottom_edge >> 5;
if (xd->mb_to_right_edge < 0)
max_blocks_wide += xd->mb_to_right_edge >> 5;
if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide)
return;
if (tx_size == mbmi->inter_tx_size[tx_row][tx_col]) {
vp10_write(w, 0, cm->fc->txfm_partition_prob[ctx]);
txfm_partition_update(xd->above_txfm_context + tx_col,
xd->left_txfm_context + tx_row, tx_size);
} else {
const BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
int bsl = b_width_log2_lookup[bsize];
int i;
vp10_write(w, 1, cm->fc->txfm_partition_prob[ctx]);
if (tx_size == TX_8X8) {
txfm_partition_update(xd->above_txfm_context + tx_col,
xd->left_txfm_context + tx_row, TX_4X4);
return;
}
assert(bsl > 0);
--bsl;
for (i = 0; i < 4; ++i) {
int offsetr = blk_row + ((i >> 1) << bsl);
int offsetc = blk_col + ((i & 0x01) << bsl);
write_tx_size_inter(cm, xd, mbmi, tx_size - 1, offsetr, offsetc, w);
}
}
}
static void update_txfm_partition_probs(VP10_COMMON *cm, vp10_writer *w,
FRAME_COUNTS *counts) {
int k;
for (k = 0; k < TXFM_PARTITION_CONTEXTS; ++k)
vp10_cond_prob_diff_update(w, &cm->fc->txfm_partition_prob[k],
counts->txfm_partition[k]);
}
#endif
static void write_selected_tx_size(const VP10_COMMON *cm,
const MACROBLOCKD *xd, vp10_writer *w) {
TX_SIZE tx_size = xd->mi[0]->mbmi.tx_size;
BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
// For sub8x8 blocks the tx_size symbol does not need to be sent
if (bsize >= BLOCK_8X8) {
vp10_write_token(w, vp10_tx_size_tree[max_tx_size - TX_8X8],
cm->fc->tx_size_probs[max_tx_size - TX_8X8]
[get_tx_size_context(xd)],
&tx_size_encodings[max_tx_size - TX_8X8][tx_size]);
}
}
#if CONFIG_REF_MV
static void update_inter_mode_probs(VP10_COMMON *cm, vp10_writer *w,
FRAME_COUNTS *counts) {
int i;
for (i = 0; i < NEWMV_MODE_CONTEXTS; ++i)
vp10_cond_prob_diff_update(w, &cm->fc->newmv_prob[i],
counts->newmv_mode[i]);
for (i = 0; i < ZEROMV_MODE_CONTEXTS; ++i)
vp10_cond_prob_diff_update(w, &cm->fc->zeromv_prob[i],
counts->zeromv_mode[i]);
for (i = 0; i < REFMV_MODE_CONTEXTS; ++i)
vp10_cond_prob_diff_update(w, &cm->fc->refmv_prob[i],
counts->refmv_mode[i]);
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
vp10_cond_prob_diff_update(w, &cm->fc->drl_prob[i],
counts->drl_mode[i]);
#if CONFIG_EXT_INTER
vp10_cond_prob_diff_update(w, &cm->fc->new2mv_prob, counts->new2mv_mode);
#endif // CONFIG_EXT_INTER
}
#endif
#if CONFIG_EXT_INTER
static void update_inter_compound_mode_probs(VP10_COMMON *cm, vp10_writer *w) {
const int savings_thresh = vp10_cost_one(GROUP_DIFF_UPDATE_PROB) -
vp10_cost_zero(GROUP_DIFF_UPDATE_PROB);
int i;
int savings = 0;
int do_update = 0;
for (i = 0; i < INTER_MODE_CONTEXTS; ++i) {
savings += prob_diff_update_savings(vp10_inter_compound_mode_tree,
cm->fc->inter_compound_mode_probs[i],
cm->counts.inter_compound_mode[i],
INTER_COMPOUND_MODES);
}
do_update = savings > savings_thresh;
vp10_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
if (do_update) {
for (i = 0; i < INTER_MODE_CONTEXTS; ++i) {
prob_diff_update(vp10_inter_compound_mode_tree,
cm->fc->inter_compound_mode_probs[i],
cm->counts.inter_compound_mode[i],
INTER_COMPOUND_MODES, w);
}
}
}
#endif // CONFIG_EXT_INTER
static int write_skip(const VP10_COMMON *cm, const MACROBLOCKD *xd,
int segment_id, const MODE_INFO *mi, vp10_writer *w) {
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
return 1;
} else {
const int skip = mi->mbmi.skip;
vp10_write(w, skip, vp10_get_skip_prob(cm, xd));
return skip;
}
}
static void update_skip_probs(VP10_COMMON *cm, vp10_writer *w,
FRAME_COUNTS *counts) {
int k;
for (k = 0; k < SKIP_CONTEXTS; ++k)
vp10_cond_prob_diff_update(w, &cm->fc->skip_probs[k], counts->skip[k]);
}
static void update_switchable_interp_probs(VP10_COMMON *cm, vp10_writer *w,
FRAME_COUNTS *counts) {
int j;
for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j)
prob_diff_update(vp10_switchable_interp_tree,
cm->fc->switchable_interp_prob[j],
counts->switchable_interp[j], SWITCHABLE_FILTERS, w);
}
#if CONFIG_EXT_TX
static void update_ext_tx_probs(VP10_COMMON *cm, vp10_writer *w) {
const int savings_thresh = vp10_cost_one(GROUP_DIFF_UPDATE_PROB) -
vp10_cost_zero(GROUP_DIFF_UPDATE_PROB);
int i, j;
int s;
for (s = 1; s < EXT_TX_SETS_INTER; ++s) {
int savings = 0;
int do_update = 0;
for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
if (!use_inter_ext_tx_for_txsize[s][i]) continue;
savings += prob_diff_update_savings(
vp10_ext_tx_inter_tree[s], cm->fc->inter_ext_tx_prob[s][i],
cm->counts.inter_ext_tx[s][i], num_ext_tx_set_inter[s]);
}
do_update = savings > savings_thresh;
vp10_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
if (do_update) {
for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
if (!use_inter_ext_tx_for_txsize[s][i]) continue;
prob_diff_update(vp10_ext_tx_inter_tree[s],
cm->fc->inter_ext_tx_prob[s][i],
cm->counts.inter_ext_tx[s][i],
num_ext_tx_set_inter[s], w);
}
}
}
for (s = 1; s < EXT_TX_SETS_INTRA; ++s) {
int savings = 0;
int do_update = 0;
for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
if (!use_intra_ext_tx_for_txsize[s][i]) continue;
for (j = 0; j < INTRA_MODES; ++j)
savings += prob_diff_update_savings(
vp10_ext_tx_intra_tree[s], cm->fc->intra_ext_tx_prob[s][i][j],
cm->counts.intra_ext_tx[s][i][j], num_ext_tx_set_intra[s]);
}
do_update = savings > savings_thresh;
vp10_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
if (do_update) {
for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
if (!use_intra_ext_tx_for_txsize[s][i]) continue;
for (j = 0; j < INTRA_MODES; ++j)
prob_diff_update(vp10_ext_tx_intra_tree[s],
cm->fc->intra_ext_tx_prob[s][i][j],
cm->counts.intra_ext_tx[s][i][j],
num_ext_tx_set_intra[s], w);
}
}
}
}
#else
static void update_ext_tx_probs(VP10_COMMON *cm, vp10_writer *w) {
const int savings_thresh = vp10_cost_one(GROUP_DIFF_UPDATE_PROB) -
vp10_cost_zero(GROUP_DIFF_UPDATE_PROB);
int i, j;
int savings = 0;
int do_update = 0;
for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
for (j = 0; j < TX_TYPES; ++j)
savings += prob_diff_update_savings(
vp10_ext_tx_tree, cm->fc->intra_ext_tx_prob[i][j],
cm->counts.intra_ext_tx[i][j], TX_TYPES);
}
do_update = savings > savings_thresh;
vp10_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
if (do_update) {
for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
for (j = 0; j < TX_TYPES; ++j)
prob_diff_update(vp10_ext_tx_tree,
cm->fc->intra_ext_tx_prob[i][j],
cm->counts.intra_ext_tx[i][j],
TX_TYPES, w);
}
}
savings = 0;
do_update = 0;
for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
savings += prob_diff_update_savings(
vp10_ext_tx_tree, cm->fc->inter_ext_tx_prob[i],
cm->counts.inter_ext_tx[i], TX_TYPES);
}
do_update = savings > savings_thresh;
vp10_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
if (do_update) {
for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
prob_diff_update(vp10_ext_tx_tree,
cm->fc->inter_ext_tx_prob[i],
cm->counts.inter_ext_tx[i],
TX_TYPES, w);
}
}
}
#endif // CONFIG_EXT_TX
static void pack_palette_tokens(vp10_writer *w, const TOKENEXTRA **tp,
int n, int num) {
int i;
const TOKENEXTRA *p = *tp;
for (i = 0; i < num; ++i) {
vp10_write_token(w, vp10_palette_color_tree[n - 2], p->context_tree,
&palette_color_encodings[n - 2][p->token]);
++p;
}
*tp = p;
}
#if CONFIG_SUPERTX
static void update_supertx_probs(VP10_COMMON *cm, vp10_writer *w) {
const int savings_thresh = vp10_cost_one(GROUP_DIFF_UPDATE_PROB) -
vp10_cost_zero(GROUP_DIFF_UPDATE_PROB);
int i, j;
int savings = 0;
int do_update = 0;
for (i = 0; i < PARTITION_SUPERTX_CONTEXTS; ++i) {
for (j = 1; j < TX_SIZES; ++j) {
savings += vp10_cond_prob_diff_update_savings(&cm->fc->supertx_prob[i][j],
cm->counts.supertx[i][j]);
}
}
do_update = savings > savings_thresh;
vp10_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
if (do_update) {
for (i = 0; i < PARTITION_SUPERTX_CONTEXTS; ++i) {
for (j = 1; j < TX_SIZES; ++j) {
vp10_cond_prob_diff_update(w, &cm->fc->supertx_prob[i][j],
cm->counts.supertx[i][j]);
}
}
}
}
#endif // CONFIG_SUPERTX
#if !CONFIG_ANS
static void pack_mb_tokens(vp10_writer *w,
const TOKENEXTRA **tp, const TOKENEXTRA *const stop,
vpx_bit_depth_t bit_depth, const TX_SIZE tx) {
const TOKENEXTRA *p = *tp;
#if CONFIG_VAR_TX
int count = 0;
const int seg_eob = 16 << (tx << 1);
#endif
while (p < stop && p->token != EOSB_TOKEN) {
const int t = p->token;
const struct vp10_token *const a = &vp10_coef_encodings[t];
int v = a->value;
int n = a->len;
#if CONFIG_VP9_HIGHBITDEPTH
const vp10_extra_bit *b;
if (bit_depth == VPX_BITS_12)
b = &vp10_extra_bits_high12[t];
else if (bit_depth == VPX_BITS_10)
b = &vp10_extra_bits_high10[t];
else
b = &vp10_extra_bits[t];
#else
const vp10_extra_bit *const b = &vp10_extra_bits[t];
(void) bit_depth;
#endif // CONFIG_VP9_HIGHBITDEPTH
/* skip one or two nodes */
if (p->skip_eob_node)
n -= p->skip_eob_node;
else
vp10_write(w, t != EOB_TOKEN, p->context_tree[0]);
if (t != EOB_TOKEN) {
vp10_write(w, t != ZERO_TOKEN, p->context_tree[1]);
if (t != ZERO_TOKEN) {
vp10_write(w, t != ONE_TOKEN, p->context_tree[2]);
if (t != ONE_TOKEN) {
int len = UNCONSTRAINED_NODES - p->skip_eob_node;
vp10_write_tree(w, vp10_coef_con_tree,
vp10_pareto8_full[p->context_tree[PIVOT_NODE] - 1],
v, n - len, 0);
}
}
}
if (b->base_val) {
const int e = p->extra, l = b->len;
int skip_bits =
(b->base_val == CAT6_MIN_VAL) ? TX_SIZES - 1 - tx : 0;
if (l) {
const unsigned char *pb = b->prob;
int v = e >> 1;
int n = l; /* number of bits in v, assumed nonzero */
int i = 0;
do {
const int bb = (v >> --n) & 1;
if (skip_bits) {
skip_bits--;
assert(!bb);
} else {
vp10_write(w, bb, pb[i >> 1]);
}
i = b->tree[i + bb];
} while (n);
}
vp10_write_bit(w, e & 1);
}
++p;
#if CONFIG_VAR_TX
++count;
if (t == EOB_TOKEN || count == seg_eob)
break;
#endif
}
*tp = p;
}
#else
// This function serializes the tokens in forward order using a buffered ans
// coder.
static void pack_mb_tokens(struct BufAnsCoder *ans,
const TOKENEXTRA **tp,
const TOKENEXTRA *const stop,
vpx_bit_depth_t bit_depth,
const TX_SIZE tx) {
const TOKENEXTRA *p = *tp;
#if CONFIG_VAR_TX
int count = 0;
const int seg_eob = 16 << (tx << 1);
#endif // CONFIG_VAR_TX
while (p < stop && p->token != EOSB_TOKEN) {
const int t = p->token;
#if CONFIG_VP9_HIGHBITDEPTH
const vp10_extra_bit *b;
if (bit_depth == VPX_BITS_12)
b = &vp10_extra_bits_high12[t];
else if (bit_depth == VPX_BITS_10)
b = &vp10_extra_bits_high10[t];
else
b = &vp10_extra_bits[t];
#else
const vp10_extra_bit *const b = &vp10_extra_bits[t];
(void)bit_depth;
#endif // CONFIG_VP9_HIGHBITDEPTH
/* skip one or two nodes */
if (!p->skip_eob_node)
buf_uabs_write(ans, t != EOB_TOKEN, p->context_tree[0]);
if (t != EOB_TOKEN) {
struct rans_sym s;
const rans_dec_lut *token_cdf = p->token_cdf;
assert(token_cdf);
s.cum_prob = (*token_cdf)[t - ZERO_TOKEN];
s.prob = (*token_cdf)[t - ZERO_TOKEN + 1] - s.cum_prob;
buf_rans_write(ans, &s);
if (b->base_val) {
const int e = p->extra, l = b->len;
int skip_bits = (b->base_val == CAT6_MIN_VAL) ? TX_SIZES - 1 - tx : 0;
if (l) {
const unsigned char *pb = b->prob;
int v = e >> 1;
int n = l; /* number of bits in v, assumed nonzero */
int i = 0;
do {
const int bb = (v >> --n) & 1;
if (skip_bits) {
skip_bits--;
assert(!bb);
} else {
buf_uabs_write(ans, bb, pb[i >> 1]);
}
i = b->tree[i + bb];
} while (n);
}
buf_uabs_write(ans, e & 1, 128);
}
}
++p;
#if CONFIG_VAR_TX
++count;
if (t == EOB_TOKEN || count == seg_eob) break;
#endif // CONFIG_VAR_TX
}
*tp = p;
}
#endif // !CONFIG_ANS
#if CONFIG_VAR_TX
static void pack_txb_tokens(vp10_writer *w,
const TOKENEXTRA **tp,
const TOKENEXTRA *const tok_end,
MACROBLOCKD *xd, MB_MODE_INFO *mbmi, int plane,
BLOCK_SIZE plane_bsize,
vpx_bit_depth_t bit_depth,
int block,
int blk_row, int blk_col, TX_SIZE tx_size) {
const struct macroblockd_plane *const pd = &xd->plane[plane];
const BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
const int tx_row = blk_row >> (1 - pd->subsampling_y);
const int tx_col = blk_col >> (1 - pd->subsampling_x);
const TX_SIZE plane_tx_size = plane ?
get_uv_tx_size_impl(mbmi->inter_tx_size[tx_row][tx_col], bsize, 0, 0) :
mbmi->inter_tx_size[tx_row][tx_col];
int max_blocks_high = num_4x4_blocks_high_lookup[plane_bsize];
int max_blocks_wide = num_4x4_blocks_wide_lookup[plane_bsize];
if (xd->mb_to_bottom_edge < 0)
max_blocks_high += xd->mb_to_bottom_edge >> (5 + pd->subsampling_y);
if (xd->mb_to_right_edge < 0)
max_blocks_wide += xd->mb_to_right_edge >> (5 + pd->subsampling_x);
if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide)
return;
if (tx_size == plane_tx_size) {
pack_mb_tokens(w, tp, tok_end, bit_depth, tx_size);
} else {
int bsl = b_width_log2_lookup[bsize];
int i;
assert(bsl > 0);
--bsl;
for (i = 0; i < 4; ++i) {
const int offsetr = blk_row + ((i >> 1) << bsl);
const int offsetc = blk_col + ((i & 0x01) << bsl);
int step = num_4x4_blocks_txsize_lookup[tx_size - 1];
if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide)
continue;
pack_txb_tokens(w, tp, tok_end, xd, mbmi, plane,
plane_bsize, bit_depth, block + i * step,
offsetr, offsetc, tx_size - 1);
}
}
}
#endif
static void write_segment_id(vp10_writer *w, const struct segmentation *seg,
const struct segmentation_probs *segp,
int segment_id) {
if (seg->enabled && seg->update_map)
vp10_write_tree(w, vp10_segment_tree, segp->tree_probs, segment_id, 3, 0);
}
// This function encodes the reference frame
static void write_ref_frames(const VP10_COMMON *cm, const MACROBLOCKD *xd,
vp10_writer *w) {
const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
const int is_compound = has_second_ref(mbmi);
const int segment_id = mbmi->segment_id;
// If segment level coding of this signal is disabled...
// or the segment allows multiple reference frame options
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
assert(!is_compound);
assert(mbmi->ref_frame[0] ==
get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME));
} else {
// does the feature use compound prediction or not
// (if not specified at the frame/segment level)
if (cm->reference_mode == REFERENCE_MODE_SELECT) {
vp10_write(w, is_compound, vp10_get_reference_mode_prob(cm, xd));
} else {
assert((!is_compound) == (cm->reference_mode == SINGLE_REFERENCE));
}
if (is_compound) {
#if CONFIG_EXT_REFS
const int bit = (mbmi->ref_frame[0] == GOLDEN_FRAME ||
mbmi->ref_frame[0] == LAST3_FRAME);
const int bit_bwd = mbmi->ref_frame[1] == ALTREF_FRAME;
#else // CONFIG_EXT_REFS
const int bit = mbmi->ref_frame[0] == GOLDEN_FRAME;
#endif // CONFIG_EXT_REFS
vp10_write(w, bit, vp10_get_pred_prob_comp_ref_p(cm, xd));
#if CONFIG_EXT_REFS
if (!bit) {
const int bit1 = mbmi->ref_frame[0] == LAST_FRAME;
vp10_write(w, bit1, vp10_get_pred_prob_comp_ref_p1(cm, xd));
} else {
const int bit2 = mbmi->ref_frame[0] == GOLDEN_FRAME;
vp10_write(w, bit2, vp10_get_pred_prob_comp_ref_p2(cm, xd));
}
vp10_write(w, bit_bwd, vp10_get_pred_prob_comp_bwdref_p(cm, xd));
#endif // CONFIG_EXT_REFS
} else {
#if CONFIG_EXT_REFS
const int bit0 = (mbmi->ref_frame[0] == ALTREF_FRAME ||
mbmi->ref_frame[0] == BWDREF_FRAME);
vp10_write(w, bit0, vp10_get_pred_prob_single_ref_p1(cm, xd));
if (bit0) {
const int bit1 = mbmi->ref_frame[0] == ALTREF_FRAME;
vp10_write(w, bit1, vp10_get_pred_prob_single_ref_p2(cm, xd));
} else {
const int bit2 = (mbmi->ref_frame[0] == LAST3_FRAME ||
mbmi->ref_frame[0] == GOLDEN_FRAME);
vp10_write(w, bit2, vp10_get_pred_prob_single_ref_p3(cm, xd));
if (!bit2) {
const int bit3 = mbmi->ref_frame[0] != LAST_FRAME;
vp10_write(w, bit3, vp10_get_pred_prob_single_ref_p4(cm, xd));
} else {
const int bit4 = mbmi->ref_frame[0] != LAST3_FRAME;
vp10_write(w, bit4, vp10_get_pred_prob_single_ref_p5(cm, xd));
}
}
#else // CONFIG_EXT_REFS
const int bit0 = mbmi->ref_frame[0] != LAST_FRAME;
vp10_write(w, bit0, vp10_get_pred_prob_single_ref_p1(cm, xd));
if (bit0) {
const int bit1 = mbmi->ref_frame[0] != GOLDEN_FRAME;
vp10_write(w, bit1, vp10_get_pred_prob_single_ref_p2(cm, xd));
}
#endif // CONFIG_EXT_REFS
}
}
}
#if CONFIG_EXT_INTRA
static void write_ext_intra_mode_info(const VP10_COMMON *const cm,
const MB_MODE_INFO *const mbmi,
vp10_writer *w) {
#if !ALLOW_FILTER_INTRA_MODES
return;
#endif
if (mbmi->mode == DC_PRED &&
mbmi->palette_mode_info.palette_size[0] == 0) {
vp10_write(w, mbmi->ext_intra_mode_info.use_ext_intra_mode[0],
cm->fc->ext_intra_probs[0]);
if (mbmi->ext_intra_mode_info.use_ext_intra_mode[0]) {
EXT_INTRA_MODE mode = mbmi->ext_intra_mode_info.ext_intra_mode[0];
write_uniform(w, FILTER_INTRA_MODES, mode);
}
}
if (mbmi->uv_mode == DC_PRED &&
mbmi->palette_mode_info.palette_size[1] == 0) {
vp10_write(w, mbmi->ext_intra_mode_info.use_ext_intra_mode[1],
cm->fc->ext_intra_probs[1]);
if (mbmi->ext_intra_mode_info.use_ext_intra_mode[1]) {
EXT_INTRA_MODE mode = mbmi->ext_intra_mode_info.ext_intra_mode[1];
write_uniform(w, FILTER_INTRA_MODES, mode);
}
}
}
static void write_intra_angle_info(const VP10_COMMON *cm, const MACROBLOCKD *xd,
vp10_writer *w) {
const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
const BLOCK_SIZE bsize = mbmi->sb_type;
const int intra_filter_ctx = vp10_get_pred_context_intra_interp(xd);
int p_angle;
if (bsize < BLOCK_8X8)
return;
if (mbmi->mode != DC_PRED && mbmi->mode != TM_PRED) {
write_uniform(w, 2 * MAX_ANGLE_DELTAS + 1,
MAX_ANGLE_DELTAS + mbmi->angle_delta[0]);
p_angle = mode_to_angle_map[mbmi->mode] + mbmi->angle_delta[0] * ANGLE_STEP;
if (vp10_is_intra_filter_switchable(p_angle)) {
vp10_write_token(w, vp10_intra_filter_tree,
cm->fc->intra_filter_probs[intra_filter_ctx],
&intra_filter_encodings[mbmi->intra_filter]);
}
}
if (mbmi->uv_mode != DC_PRED && mbmi->uv_mode != TM_PRED) {
write_uniform(w, 2 * MAX_ANGLE_DELTAS + 1,
MAX_ANGLE_DELTAS + mbmi->angle_delta[1]);
}
}
#endif // CONFIG_EXT_INTRA
static void write_switchable_interp_filter(VP10_COMP *cpi,
const MACROBLOCKD *xd,
vp10_writer *w) {
VP10_COMMON *const cm = &cpi->common;
const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
#if CONFIG_DUAL_FILTER
int dir;
#endif
if (cm->interp_filter == SWITCHABLE) {
#if CONFIG_EXT_INTERP
#if CONFIG_DUAL_FILTER
if (!vp10_is_interp_needed(xd)) {
assert(mbmi->interp_filter[0] == EIGHTTAP_REGULAR);
return;
}
#else
if (!vp10_is_interp_needed(xd)) {
#if CONFIG_DUAL_FILTER
assert(mbmi->interp_filter[0] == EIGHTTAP_REGULAR);
assert(mbmi->interp_filter[1] == EIGHTTAP_REGULAR);
#else
assert(mbmi->interp_filter == EIGHTTAP_REGULAR);
#endif
return;
}
#endif // CONFIG_DUAL_FILTER
#endif // CONFIG_EXT_INTERP
#if CONFIG_DUAL_FILTER
for (dir = 0; dir < 2; ++dir) {
if (has_subpel_mv_component(xd->mi[0], xd, dir) ||
(mbmi->ref_frame[1] > INTRA_FRAME &&
has_subpel_mv_component(xd->mi[0], xd, dir + 2))) {
const int ctx = vp10_get_pred_context_switchable_interp(xd, dir);
vp10_write_token(w, vp10_switchable_interp_tree,
cm->fc->switchable_interp_prob[ctx],
&switchable_interp_encodings[mbmi->interp_filter[dir]]);
++cpi->interp_filter_selected[0][mbmi->interp_filter[dir]];
}
}
#else
{
const int ctx = vp10_get_pred_context_switchable_interp(xd);
vp10_write_token(w, vp10_switchable_interp_tree,
cm->fc->switchable_interp_prob[ctx],
&switchable_interp_encodings[mbmi->interp_filter]);
++cpi->interp_filter_selected[0][mbmi->interp_filter];
}
#endif
}
}
static void write_palette_mode_info(const VP10_COMMON *cm,
const MACROBLOCKD *xd,
const MODE_INFO *const mi,
vp10_writer *w) {
const MB_MODE_INFO *const mbmi = &mi->mbmi;
const MODE_INFO *const above_mi = xd->above_mi;
const MODE_INFO *const left_mi = xd->left_mi;
const BLOCK_SIZE bsize = mbmi->sb_type;
const PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info;
int palette_ctx = 0;
int n, i;
if (mbmi->mode == DC_PRED) {
n = pmi->palette_size[0];
if (above_mi)
palette_ctx += (above_mi->mbmi.palette_mode_info.palette_size[0] > 0);
if (left_mi)
palette_ctx += (left_mi->mbmi.palette_mode_info.palette_size[0] > 0);
vp10_write(w, n > 0,
vp10_default_palette_y_mode_prob[bsize - BLOCK_8X8][palette_ctx]);
if (n > 0) {
vp10_write_token(w, vp10_palette_size_tree,
vp10_default_palette_y_size_prob[bsize - BLOCK_8X8],
&palette_size_encodings[n - 2]);
for (i = 0; i < n; ++i)
vp10_write_literal(w, pmi->palette_colors[i], cm->bit_depth);
write_uniform(w, n, pmi->palette_first_color_idx[0]);
}
}
if (mbmi->uv_mode == DC_PRED) {
n = pmi->palette_size[1];
vp10_write(w, n > 0,
vp10_default_palette_uv_mode_prob[pmi->palette_size[0] > 0]);
if (n > 0) {
vp10_write_token(w, vp10_palette_size_tree,
vp10_default_palette_uv_size_prob[bsize - BLOCK_8X8],
&palette_size_encodings[n - 2]);
for (i = 0; i < n; ++i) {
vp10_write_literal(w, pmi->palette_colors[PALETTE_MAX_SIZE + i],
cm->bit_depth);
vp10_write_literal(w, pmi->palette_colors[2 * PALETTE_MAX_SIZE + i],
cm->bit_depth);
}
write_uniform(w, n, pmi->palette_first_color_idx[1]);
}
}
}
static void pack_inter_mode_mvs(VP10_COMP *cpi, const MODE_INFO *mi,
#if CONFIG_SUPERTX
int supertx_enabled,
#endif
vp10_writer *w) {
VP10_COMMON *const cm = &cpi->common;
#if !CONFIG_REF_MV
const nmv_context *nmvc = &cm->fc->nmvc;
#endif
const MACROBLOCK *x = &cpi->td.mb;
const MACROBLOCKD *xd = &x->e_mbd;
const struct segmentation *const seg = &cm->seg;
const struct segmentation_probs *const segp = &cm->fc->seg;
const MB_MODE_INFO *const mbmi = &mi->mbmi;
const MB_MODE_INFO_EXT *const mbmi_ext = x->mbmi_ext;
const PREDICTION_MODE mode = mbmi->mode;
const int segment_id = mbmi->segment_id;
const BLOCK_SIZE bsize = mbmi->sb_type;
const int allow_hp = cm->allow_high_precision_mv;
const int is_inter = is_inter_block(mbmi);
const int is_compound = has_second_ref(mbmi);
int skip, ref;
if (seg->update_map) {
if (seg->temporal_update) {
const int pred_flag = mbmi->seg_id_predicted;
vpx_prob pred_prob = vp10_get_pred_prob_seg_id(segp, xd);
vp10_write(w, pred_flag, pred_prob);
if (!pred_flag)
write_segment_id(w, seg, segp, segment_id);
} else {
write_segment_id(w, seg, segp, segment_id);
}
}
#if CONFIG_SUPERTX
if (supertx_enabled)
skip = mbmi->skip;
else
skip = write_skip(cm, xd, segment_id, mi, w);
#else
skip = write_skip(cm, xd, segment_id, mi, w);
#endif // CONFIG_SUPERTX
#if CONFIG_SUPERTX
if (!supertx_enabled)
#endif // CONFIG_SUPERTX
if (!segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME))
vp10_write(w, is_inter, vp10_get_intra_inter_prob(cm, xd));
if (bsize >= BLOCK_8X8 && cm->tx_mode == TX_MODE_SELECT &&
#if CONFIG_SUPERTX
!supertx_enabled &&
#endif // CONFIG_SUPERTX
!(is_inter && skip) && !xd->lossless[segment_id]) {
#if CONFIG_VAR_TX
if (is_inter) { // This implies skip flag is 0.
const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
const int txb_size = txsize_to_bsize[max_tx_size];
const int bs = num_4x4_blocks_wide_lookup[txb_size];
const int width = num_4x4_blocks_wide_lookup[bsize];
const int height = num_4x4_blocks_high_lookup[bsize];
int idx, idy;
for (idy = 0; idy < height; idy += bs)
for (idx = 0; idx < width; idx += bs)
write_tx_size_inter(cm, xd, mbmi, max_tx_size, idy, idx, w);
} else {
set_txfm_ctx(xd->left_txfm_context, mbmi->tx_size, xd->n8_h);
set_txfm_ctx(xd->above_txfm_context, mbmi->tx_size, xd->n8_w);
write_selected_tx_size(cm, xd, w);
}
} else {
set_txfm_ctx(xd->left_txfm_context, mbmi->tx_size, xd->n8_h);
set_txfm_ctx(xd->above_txfm_context, mbmi->tx_size, xd->n8_w);
#else
write_selected_tx_size(cm, xd, w);
#endif
}
if (!is_inter) {
if (bsize >= BLOCK_8X8) {
write_intra_mode(w, mode, cm->fc->y_mode_prob[size_group_lookup[bsize]]);
} else {
int idx, idy;
const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_h = num_4x4_blocks_high_lookup[bsize];
for (idy = 0; idy < 2; idy += num_4x4_h) {
for (idx = 0; idx < 2; idx += num_4x4_w) {
const PREDICTION_MODE b_mode = mi->bmi[idy * 2 + idx].as_mode;
write_intra_mode(w, b_mode, cm->fc->y_mode_prob[0]);
}
}
}
write_intra_mode(w, mbmi->uv_mode, cm->fc->uv_mode_prob[mode]);
#if CONFIG_EXT_INTRA
write_intra_angle_info(cm, xd, w);
#endif // CONFIG_EXT_INTRA
if (bsize >= BLOCK_8X8 && cm->allow_screen_content_tools)
write_palette_mode_info(cm, xd, mi, w);
#if CONFIG_EXT_INTRA
if (bsize >= BLOCK_8X8)
write_ext_intra_mode_info(cm, mbmi, w);
#endif // CONFIG_EXT_INTRA
} else {
int16_t mode_ctx = mbmi_ext->mode_context[mbmi->ref_frame[0]];
write_ref_frames(cm, xd, w);
#if CONFIG_REF_MV
#if CONFIG_EXT_INTER
if (is_compound)
mode_ctx = mbmi_ext->compound_mode_context[mbmi->ref_frame[0]];
else
#endif // CONFIG_EXT_INTER
mode_ctx = vp10_mode_context_analyzer(mbmi_ext->mode_context,
mbmi->ref_frame, bsize, -1);
#endif
// If segment skip is not enabled code the mode.
if (!segfeature_active(seg, segment_id, SEG_LVL_SKIP)) {
if (bsize >= BLOCK_8X8) {
#if CONFIG_EXT_INTER
if (is_inter_compound_mode(mode))
write_inter_compound_mode(cm, w, mode, mode_ctx);
else if (is_inter_singleref_mode(mode))
#endif // CONFIG_EXT_INTER
write_inter_mode(cm, w, mode,
#if CONFIG_REF_MV && CONFIG_EXT_INTER
is_compound,
#endif // CONFIG_REF_MV && CONFIG_EXT_INTER
mode_ctx);
#if CONFIG_REF_MV
if (mode == NEARMV || mode == NEWMV)
write_drl_idx(cm, mbmi, mbmi_ext, w);
#endif
}
}
#if !CONFIG_EXT_INTERP && !CONFIG_DUAL_FILTER
write_switchable_interp_filter(cpi, xd, w);
#endif // !CONFIG_EXT_INTERP
if (bsize < BLOCK_8X8) {
const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_h = num_4x4_blocks_high_lookup[bsize];
int idx, idy;
for (idy = 0; idy < 2; idy += num_4x4_h) {
for (idx = 0; idx < 2; idx += num_4x4_w) {
const int j = idy * 2 + idx;
const PREDICTION_MODE b_mode = mi->bmi[j].as_mode;
#if CONFIG_REF_MV
#if CONFIG_EXT_INTER
if (!is_compound)
#endif // CONFIG_EXT_INTER
mode_ctx = vp10_mode_context_analyzer(mbmi_ext->mode_context,
mbmi->ref_frame, bsize, j);
#endif
#if CONFIG_EXT_INTER
if (is_inter_compound_mode(b_mode))
write_inter_compound_mode(cm, w, b_mode, mode_ctx);
else if (is_inter_singleref_mode(b_mode))
#endif // CONFIG_EXT_INTER
write_inter_mode(cm, w, b_mode,
#if CONFIG_REF_MV && CONFIG_EXT_INTER
has_second_ref(mbmi),
#endif // CONFIG_REF_MV && CONFIG_EXT_INTER
mode_ctx);
#if CONFIG_EXT_INTER
if (b_mode == NEWMV || b_mode == NEWFROMNEARMV ||
b_mode == NEW_NEWMV) {
#else
if (b_mode == NEWMV) {
#endif // CONFIG_EXT_INTER
for (ref = 0; ref < 1 + is_compound; ++ref) {
#if CONFIG_REF_MV
int nmv_ctx =
vp10_nmv_ctx(mbmi_ext->ref_mv_count[mbmi->ref_frame[ref]],
mbmi_ext->ref_mv_stack[mbmi->ref_frame[ref]]);
const nmv_context *nmvc = &cm->fc->nmvc[nmv_ctx];
#endif
vp10_encode_mv(cpi, w, &mi->bmi[j].as_mv[ref].as_mv,
#if CONFIG_EXT_INTER
&mi->bmi[j].ref_mv[ref].as_mv,
#if CONFIG_REF_MV
is_compound,
#endif
#else
#if CONFIG_REF_MV
&mi->bmi[j].pred_mv_s8[ref].as_mv,
is_compound,
#else
&mbmi_ext->ref_mvs[mbmi->ref_frame[ref]][0].as_mv,
#endif // CONFIG_REF_MV
#endif // CONFIG_EXT_INTER
nmvc, allow_hp);
}
}
#if CONFIG_EXT_INTER
else if (b_mode == NEAREST_NEWMV || b_mode == NEAR_NEWMV) {
#if CONFIG_REF_MV
int nmv_ctx =
vp10_nmv_ctx(mbmi_ext->ref_mv_count[mbmi->ref_frame[1]],
mbmi_ext->ref_mv_stack[mbmi->ref_frame[1]]);
const nmv_context *nmvc = &cm->fc->nmvc[nmv_ctx];
#endif
vp10_encode_mv(cpi, w, &mi->bmi[j].as_mv[1].as_mv,
&mi->bmi[j].ref_mv[1].as_mv,
#if CONFIG_REF_MV
is_compound,
#endif
nmvc, allow_hp);
} else if (b_mode == NEW_NEARESTMV || b_mode == NEW_NEARMV) {
#if CONFIG_REF_MV
int nmv_ctx =
vp10_nmv_ctx(mbmi_ext->ref_mv_count[mbmi->ref_frame[0]],
mbmi_ext->ref_mv_stack[mbmi->ref_frame[0]]);
const nmv_context *nmvc = &cm->fc->nmvc[nmv_ctx];
#endif
vp10_encode_mv(cpi, w, &mi->bmi[j].as_mv[0].as_mv,
&mi->bmi[j].ref_mv[0].as_mv,
#if CONFIG_REF_MV
is_compound,
#endif
nmvc, allow_hp);
}
#endif // CONFIG_EXT_INTER
}
}
} else {
#if CONFIG_EXT_INTER
if (mode == NEWMV || mode == NEWFROMNEARMV || mode == NEW_NEWMV) {
#else
if (mode == NEWMV) {
#endif // CONFIG_EXT_INTER
int_mv ref_mv;
for (ref = 0; ref < 1 + is_compound; ++ref) {
#if CONFIG_REF_MV
int nmv_ctx =
vp10_nmv_ctx(mbmi_ext->ref_mv_count[mbmi->ref_frame[ref]],
mbmi_ext->ref_mv_stack[mbmi->ref_frame[ref]]);
const nmv_context *nmvc = &cm->fc->nmvc[nmv_ctx];
#endif
ref_mv = mbmi_ext->ref_mvs[mbmi->ref_frame[ref]][0];
#if CONFIG_EXT_INTER
if (mode == NEWFROMNEARMV)
vp10_encode_mv(cpi, w, &mbmi->mv[ref].as_mv,
&mbmi_ext->ref_mvs[mbmi->ref_frame[ref]][1].as_mv,
#if CONFIG_REF_MV
is_compound,
#endif
nmvc, allow_hp);
else
#endif // CONFIG_EXT_INTER
vp10_encode_mv(cpi, w, &mbmi->mv[ref].as_mv,
&ref_mv.as_mv,
#if CONFIG_REF_MV
is_compound,
#endif
nmvc, allow_hp);
}
#if CONFIG_EXT_INTER
} else if (mode == NEAREST_NEWMV || mode == NEAR_NEWMV) {
#if CONFIG_REF_MV
int nmv_ctx =
vp10_nmv_ctx(mbmi_ext->ref_mv_count[mbmi->ref_frame[1]],
mbmi_ext->ref_mv_stack[mbmi->ref_frame[1]]);
const nmv_context *nmvc = &cm->fc->nmvc[nmv_ctx];
#endif
vp10_encode_mv(cpi, w, &mbmi->mv[1].as_mv,
&mbmi_ext->ref_mvs[mbmi->ref_frame[1]][0].as_mv,
#if CONFIG_REF_MV
is_compound,
#endif
nmvc, allow_hp);
} else if (mode == NEW_NEARESTMV || mode == NEW_NEARMV) {
#if CONFIG_REF_MV
int nmv_ctx =
vp10_nmv_ctx(mbmi_ext->ref_mv_count[mbmi->ref_frame[0]],
mbmi_ext->ref_mv_stack[mbmi->ref_frame[0]]);
const nmv_context *nmvc = &cm->fc->nmvc[nmv_ctx];
#endif
vp10_encode_mv(cpi, w, &mbmi->mv[0].as_mv,
&mbmi_ext->ref_mvs[mbmi->ref_frame[0]][0].as_mv,
#if CONFIG_REF_MV
is_compound,
#endif
nmvc, allow_hp);
#endif // CONFIG_EXT_INTER
}
}
#if CONFIG_EXT_INTER
if (cpi->common.reference_mode != COMPOUND_REFERENCE &&
#if CONFIG_SUPERTX
!supertx_enabled &&
#endif // CONFIG_SUPERTX
is_interintra_allowed(mbmi)) {
const int interintra = mbmi->ref_frame[1] == INTRA_FRAME;
const int bsize_group = size_group_lookup[bsize];
vp10_write(w, interintra, cm->fc->interintra_prob[bsize_group]);
if (interintra) {
write_interintra_mode(
w, mbmi->interintra_mode,
cm->fc->interintra_mode_prob[bsize_group]);
if (is_interintra_wedge_used(bsize)) {
vp10_write(w, mbmi->use_wedge_interintra,
cm->fc->wedge_interintra_prob[bsize]);
if (mbmi->use_wedge_interintra) {
vp10_write_literal(w, mbmi->interintra_wedge_index,
get_wedge_bits_lookup(bsize));
assert(mbmi->interintra_wedge_sign == 0);
}
}
}
}
#endif // CONFIG_EXT_INTER
#if CONFIG_OBMC || CONFIG_WARPED_MOTION
#if CONFIG_SUPERTX
if (!supertx_enabled)
#endif // CONFIG_SUPERTX
#if CONFIG_EXT_INTER
if (mbmi->ref_frame[1] != INTRA_FRAME)
#endif // CONFIG_EXT_INTER
if (is_motvar_allowed(mbmi)) {
// TODO(debargha): Might want to only emit this if SEG_LVL_SKIP
// is not active, and assume SIMPLE_TRANSLATION in the decoder if
// it is active.
assert(mbmi->motion_variation < MOTION_VARIATIONS);
vp10_write_token(w, vp10_motvar_tree, cm->fc->motvar_prob[bsize],
&motvar_encodings[mbmi->motion_variation]);
}
#endif // CONFIG_OBMC || CONFIG_WARPED_MOTION
#if CONFIG_EXT_INTER
if (cpi->common.reference_mode != SINGLE_REFERENCE &&
is_inter_compound_mode(mbmi->mode) &&
#if CONFIG_OBMC
!(is_motvar_allowed(mbmi) &&
mbmi->motion_variation != SIMPLE_TRANSLATION) &&
#endif // CONFIG_OBMC
is_interinter_wedge_used(bsize)) {
vp10_write(w, mbmi->use_wedge_interinter,
cm->fc->wedge_interinter_prob[bsize]);
if (mbmi->use_wedge_interinter) {
vp10_write_literal(w, mbmi->interinter_wedge_index,
get_wedge_bits_lookup(bsize));
vp10_write_bit(w, mbmi->interinter_wedge_sign);
}
}
#endif // CONFIG_EXT_INTER
#if CONFIG_EXT_INTERP || CONFIG_DUAL_FILTER
write_switchable_interp_filter(cpi, xd, w);
#endif // CONFIG_EXT_INTERP
}
if (!FIXED_TX_TYPE) {
#if CONFIG_EXT_TX
if (get_ext_tx_types(mbmi->tx_size, bsize, is_inter) > 1 &&
cm->base_qindex > 0 && !mbmi->skip &&
#if CONFIG_SUPERTX
!supertx_enabled &&
#endif // CONFIG_SUPERTX
!segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
int eset = get_ext_tx_set(mbmi->tx_size, bsize, is_inter);
if (is_inter) {
if (eset > 0)
vp10_write_token(w, vp10_ext_tx_inter_tree[eset],
cm->fc->inter_ext_tx_prob[eset][mbmi->tx_size],
&ext_tx_inter_encodings[eset][mbmi->tx_type]);
} else if (ALLOW_INTRA_EXT_TX) {
if (eset > 0)
vp10_write_token(
w, vp10_ext_tx_intra_tree[eset],
cm->fc->intra_ext_tx_prob[eset][mbmi->tx_size][mbmi->mode],
&ext_tx_intra_encodings[eset][mbmi->tx_type]);
}
}
#else
if (mbmi->tx_size < TX_32X32 &&
cm->base_qindex > 0 && !mbmi->skip &&
#if CONFIG_SUPERTX
!supertx_enabled &&
#endif // CONFIG_SUPERTX
!segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
if (is_inter) {
vp10_write_token(
w, vp10_ext_tx_tree,
cm->fc->inter_ext_tx_prob[mbmi->tx_size],
&ext_tx_encodings[mbmi->tx_type]);
} else {
vp10_write_token(
w, vp10_ext_tx_tree,
cm->fc->intra_ext_tx_prob[mbmi->tx_size]
[intra_mode_to_tx_type_context[mbmi->mode]],
&ext_tx_encodings[mbmi->tx_type]);
}
} else {
if (!mbmi->skip) {
#if CONFIG_SUPERTX
if (!supertx_enabled)
#endif // CONFIG_SUPERTX
assert(mbmi->tx_type == DCT_DCT);
}
}
#endif // CONFIG_EXT_TX
}
}
static void write_mb_modes_kf(const VP10_COMMON *cm, const MACROBLOCKD *xd,
MODE_INFO **mi_8x8, vp10_writer *w) {
const struct segmentation *const seg = &cm->seg;
const struct segmentation_probs *const segp = &cm->fc->seg;
const MODE_INFO *const mi = mi_8x8[0];
const MODE_INFO *const above_mi = xd->above_mi;
const MODE_INFO *const left_mi = xd->left_mi;
const MB_MODE_INFO *const mbmi = &mi->mbmi;
const BLOCK_SIZE bsize = mbmi->sb_type;
if (seg->update_map)
write_segment_id(w, seg, segp, mbmi->segment_id);
write_skip(cm, xd, mbmi->segment_id, mi, w);
if (bsize >= BLOCK_8X8 && cm->tx_mode == TX_MODE_SELECT &&
!xd->lossless[mbmi->segment_id])
write_selected_tx_size(cm, xd, w);
if (bsize >= BLOCK_8X8) {
write_intra_mode(w, mbmi->mode,
get_y_mode_probs(cm, mi, above_mi, left_mi, 0));
} else {
const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_h = num_4x4_blocks_high_lookup[bsize];
int idx, idy;
for (idy = 0; idy < 2; idy += num_4x4_h) {
for (idx = 0; idx < 2; idx += num_4x4_w) {
const int block = idy * 2 + idx;
write_intra_mode(w, mi->bmi[block].as_mode,
get_y_mode_probs(cm, mi, above_mi, left_mi, block));
}
}
}
write_intra_mode(w, mbmi->uv_mode, cm->fc->uv_mode_prob[mbmi->mode]);
#if CONFIG_EXT_INTRA
write_intra_angle_info(cm, xd, w);
#endif // CONFIG_EXT_INTRA
if (bsize >= BLOCK_8X8 && cm->allow_screen_content_tools)
write_palette_mode_info(cm, xd, mi, w);
#if CONFIG_EXT_INTRA
if (bsize >= BLOCK_8X8)
write_ext_intra_mode_info(cm, mbmi, w);
#endif // CONFIG_EXT_INTRA
if (!FIXED_TX_TYPE) {
#if CONFIG_EXT_TX
if (get_ext_tx_types(mbmi->tx_size, bsize, 0) > 1 &&
cm->base_qindex > 0 && !mbmi->skip &&
!segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP) &&
ALLOW_INTRA_EXT_TX) {
int eset = get_ext_tx_set(mbmi->tx_size, bsize, 0);
if (eset > 0)
vp10_write_token(
w, vp10_ext_tx_intra_tree[eset],
cm->fc->intra_ext_tx_prob[eset][mbmi->tx_size][mbmi->mode],
&ext_tx_intra_encodings[eset][mbmi->tx_type]);
}
#else
if (mbmi->tx_size < TX_32X32 &&
cm->base_qindex > 0 && !mbmi->skip &&
!segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
vp10_write_token(
w, vp10_ext_tx_tree,
cm->fc->intra_ext_tx_prob[mbmi->tx_size]
[intra_mode_to_tx_type_context[mbmi->mode]],
&ext_tx_encodings[mbmi->tx_type]);
}
#endif // CONFIG_EXT_TX
}
}
#if CONFIG_SUPERTX
#define write_modes_b_wrapper(cpi, tile, w, tok, tok_end, \
supertx_enabled, mi_row, mi_col) \
write_modes_b(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col)
#else
#define write_modes_b_wrapper(cpi, tile, w, tok, tok_end, \
supertx_enabled, mi_row, mi_col) \
write_modes_b(cpi, tile, w, tok, tok_end, mi_row, mi_col)
#endif // CONFIG_ANS && CONFIG_SUPERTX
static void write_modes_b(VP10_COMP *cpi, const TileInfo *const tile,
vp10_writer *w,
const TOKENEXTRA **tok,
const TOKENEXTRA *const tok_end,
#if CONFIG_SUPERTX
int supertx_enabled,
#endif
int mi_row, int mi_col) {
VP10_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
MODE_INFO *m;
int plane;
int bh, bw;
#if CONFIG_ANS
(void) tok;
(void) tok_end;
(void) plane;
#endif // !CONFIG_ANS
xd->mi = cm->mi_grid_visible + (mi_row * cm->mi_stride + mi_col);
m = xd->mi[0];
assert(m->mbmi.sb_type <= cm->sb_size);
bh = num_8x8_blocks_high_lookup[m->mbmi.sb_type];
bw = num_8x8_blocks_wide_lookup[m->mbmi.sb_type];
cpi->td.mb.mbmi_ext = cpi->mbmi_ext_base + (mi_row * cm->mi_cols + mi_col);
set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, cm->mi_rows, cm->mi_cols);
if (frame_is_intra_only(cm)) {
write_mb_modes_kf(cm, xd, xd->mi, w);
} else {
#if CONFIG_VAR_TX
xd->above_txfm_context = cm->above_txfm_context + mi_col;
xd->left_txfm_context =
xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
#endif
#if CONFIG_EXT_INTERP
// vp10_is_interp_needed needs the ref frame buffers set up to look
// up if they are scaled. vp10_is_interp_needed is in turn needed by
// write_switchable_interp_filter, which is called by pack_inter_mode_mvs.
set_ref_ptrs(cm, xd, m->mbmi.ref_frame[0], m->mbmi.ref_frame[1]);
#endif // CONFIG_EXT_INTERP
#if 0
// NOTE(zoeliu): For debug
if (cm->current_video_frame == FRAME_TO_CHECK && cm->show_frame == 1) {
const PREDICTION_MODE mode = m->mbmi.mode;
const int segment_id = m->mbmi.segment_id;
const BLOCK_SIZE bsize = m->mbmi.sb_type;
// For sub8x8, simply dump out the first sub8x8 block info
const PREDICTION_MODE b_mode =
(bsize < BLOCK_8X8) ? m->bmi[0].as_mode : -1;
const int mv_x = (bsize < BLOCK_8X8) ?
m->bmi[0].as_mv[0].as_mv.row : m->mbmi.mv[0].as_mv.row;
const int mv_y = (bsize < BLOCK_8X8) ?
m->bmi[0].as_mv[0].as_mv.col : m->mbmi.mv[0].as_mv.col;
printf("Before pack_inter_mode_mvs(): "
"Frame=%d, (mi_row,mi_col)=(%d,%d), "
"mode=%d, segment_id=%d, bsize=%d, b_mode=%d, "
"mv[0]=(%d, %d), ref[0]=%d, ref[1]=%d\n",
cm->current_video_frame, mi_row, mi_col,
mode, segment_id, bsize, b_mode, mv_x, mv_y,
m->mbmi.ref_frame[0], m->mbmi.ref_frame[1]);
}
#endif // 0
pack_inter_mode_mvs(cpi, m,
#if CONFIG_SUPERTX
supertx_enabled,
#endif
w);
}
for (plane = 0; plane <= 1; ++plane) {
if (m->mbmi.palette_mode_info.palette_size[plane] > 0) {
const int rows = (4 * num_4x4_blocks_high_lookup[m->mbmi.sb_type]) >>
(xd->plane[plane].subsampling_y);
const int cols = (4 * num_4x4_blocks_wide_lookup[m->mbmi.sb_type]) >>
(xd->plane[plane].subsampling_x);
assert(*tok < tok_end);
pack_palette_tokens(w, tok, m->mbmi.palette_mode_info.palette_size[plane],
rows * cols - 1);
assert(*tok < tok_end + m->mbmi.skip);
}
}
#if CONFIG_SUPERTX
if (supertx_enabled) return;
#endif // CONFIG_SUPERTX
if (!m->mbmi.skip) {
assert(*tok < tok_end);
for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
#if CONFIG_VAR_TX
const struct macroblockd_plane *const pd = &xd->plane[plane];
MB_MODE_INFO *mbmi = &m->mbmi;
BLOCK_SIZE bsize = mbmi->sb_type;
const BLOCK_SIZE plane_bsize =
get_plane_block_size(VPXMAX(bsize, BLOCK_8X8), pd);
const int num_4x4_w = num_4x4_blocks_wide_lookup[plane_bsize];
const int num_4x4_h = num_4x4_blocks_high_lookup[plane_bsize];
int row, col;
if (is_inter_block(mbmi)) {
const TX_SIZE max_tx_size = max_txsize_lookup[plane_bsize];
const BLOCK_SIZE txb_size = txsize_to_bsize[max_tx_size];
int bw = num_4x4_blocks_wide_lookup[txb_size];
int block = 0;
const int step = num_4x4_blocks_txsize_lookup[max_tx_size];
for (row = 0; row < num_4x4_h; row += bw) {
for (col = 0; col < num_4x4_w; col += bw) {
pack_txb_tokens(w, tok, tok_end, xd, mbmi, plane, plane_bsize,
cm->bit_depth, block, row, col, max_tx_size);
block += step;
}
}
} else {
TX_SIZE tx = plane ? get_uv_tx_size(&m->mbmi, &xd->plane[plane])
: m->mbmi.tx_size;
BLOCK_SIZE txb_size = txsize_to_bsize[tx];
int bw = num_4x4_blocks_wide_lookup[txb_size];
for (row = 0; row < num_4x4_h; row += bw)
for (col = 0; col < num_4x4_w; col += bw)
pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx);
}
#else
TX_SIZE tx = plane ? get_uv_tx_size(&m->mbmi, &xd->plane[plane])
: m->mbmi.tx_size;
pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx);
#endif // CONFIG_VAR_TX
assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN);
(*tok)++;
}
}
}
static void write_partition(const VP10_COMMON *const cm,
const MACROBLOCKD *const xd,
int hbs, int mi_row, int mi_col,
PARTITION_TYPE p, BLOCK_SIZE bsize,
vp10_writer *w) {
const int ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
const vpx_prob *const probs = cm->fc->partition_prob[ctx];
const int has_rows = (mi_row + hbs) < cm->mi_rows;
const int has_cols = (mi_col + hbs) < cm->mi_cols;
if (has_rows && has_cols) {
#if CONFIG_EXT_PARTITION_TYPES
if (bsize <= BLOCK_8X8)
vp10_write_token(w, vp10_partition_tree, probs, &partition_encodings[p]);
else
vp10_write_token(w, vp10_ext_partition_tree, probs,
&ext_partition_encodings[p]);
#else
vp10_write_token(w, vp10_partition_tree, probs, &partition_encodings[p]);
#endif // CONFIG_EXT_PARTITION_TYPES
} else if (!has_rows && has_cols) {
assert(p == PARTITION_SPLIT || p == PARTITION_HORZ);
vp10_write(w, p == PARTITION_SPLIT, probs[1]);
} else if (has_rows && !has_cols) {
assert(p == PARTITION_SPLIT || p == PARTITION_VERT);
vp10_write(w, p == PARTITION_SPLIT, probs[2]);
} else {
assert(p == PARTITION_SPLIT);
}
}
#if CONFIG_SUPERTX
#define write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, \
supertx_enabled, mi_row, mi_col, bsize) \
write_modes_sb(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col, \
bsize)
#else
#define write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, \
supertx_enabled, mi_row, mi_col, bsize) \
write_modes_sb(cpi, tile, w, tok, tok_end, mi_row, mi_col, bsize)
#endif // CONFIG_ANS && CONFIG_SUPERTX
static void write_modes_sb(VP10_COMP *const cpi,
const TileInfo *const tile,
vp10_writer *const w,
const TOKENEXTRA **tok,
const TOKENEXTRA *const tok_end,
#if CONFIG_SUPERTX
int supertx_enabled,
#endif
int mi_row, int mi_col, BLOCK_SIZE bsize) {
const VP10_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
const int hbs = num_8x8_blocks_wide_lookup[bsize] / 2;
const PARTITION_TYPE partition = get_partition(cm, mi_row, mi_col, bsize);
const BLOCK_SIZE subsize = get_subsize(bsize, partition);
#if CONFIG_SUPERTX
const int mi_offset = mi_row * cm->mi_stride + mi_col;
MB_MODE_INFO *mbmi;
const int pack_token = !supertx_enabled;
TX_SIZE supertx_size;
int plane;
#endif
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
return;
write_partition(cm, xd, hbs, mi_row, mi_col, partition, bsize, w);
#if CONFIG_SUPERTX
mbmi = &cm->mi_grid_visible[mi_offset]->mbmi;
xd->mi = cm->mi_grid_visible + mi_offset;
set_mi_row_col(xd, tile,
mi_row, num_8x8_blocks_high_lookup[bsize],
mi_col, num_8x8_blocks_wide_lookup[bsize],
cm->mi_rows, cm->mi_cols);
if (!supertx_enabled &&
!frame_is_intra_only(cm) &&
partition != PARTITION_NONE && bsize <= MAX_SUPERTX_BLOCK_SIZE &&
!xd->lossless[0]) {
vpx_prob prob;
supertx_size = max_txsize_lookup[bsize];
prob = cm->fc->supertx_prob[partition_supertx_context_lookup[partition]]
[supertx_size];
supertx_enabled = (xd->mi[0]->mbmi.tx_size == supertx_size);
vp10_write(w, supertx_enabled, prob);
}
#endif // CONFIG_SUPERTX
if (subsize < BLOCK_8X8) {
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col);
} else {
switch (partition) {
case PARTITION_NONE:
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col);
break;
case PARTITION_HORZ:
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col);
if (mi_row + hbs < cm->mi_rows)
write_modes_b_wrapper(cpi, tile, w, tok, tok_end,
supertx_enabled, mi_row + hbs, mi_col);
break;
case PARTITION_VERT:
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col);
if (mi_col + hbs < cm->mi_cols)
write_modes_b_wrapper(cpi, tile, w, tok, tok_end,
supertx_enabled, mi_row, mi_col + hbs);
break;
case PARTITION_SPLIT:
write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col, subsize);
write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col + hbs, subsize);
write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row + hbs, mi_col, subsize);
write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row + hbs, mi_col + hbs, subsize);
break;
#if CONFIG_EXT_PARTITION_TYPES
case PARTITION_HORZ_A:
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col);
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col + hbs);
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row + hbs, mi_col);
break;
case PARTITION_HORZ_B:
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col);
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row + hbs, mi_col);
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row + hbs, mi_col + hbs);
break;
case PARTITION_VERT_A:
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col);
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row + hbs, mi_col);
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col + hbs);
break;
case PARTITION_VERT_B:
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col);
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row, mi_col + hbs);
write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled,
mi_row + hbs, mi_col + hbs);
break;
#endif // CONFIG_EXT_PARTITION_TYPES
default:
assert(0);
}
}
#if CONFIG_SUPERTX
if (partition != PARTITION_NONE && supertx_enabled && pack_token) {
int skip;
xd->mi = cm->mi_grid_visible + mi_offset;
supertx_size = mbmi->tx_size;
set_mi_row_col(xd, tile,
mi_row, num_8x8_blocks_high_lookup[bsize],
mi_col, num_8x8_blocks_wide_lookup[bsize],
cm->mi_rows, cm->mi_cols);
assert(IMPLIES(!cm->seg.enabled, mbmi->segment_id_supertx == 0));
assert(mbmi->segment_id_supertx < MAX_SEGMENTS);
skip = write_skip(cm, xd, mbmi->segment_id_supertx, xd->mi[0], w);
#if CONFIG_EXT_TX
if (get_ext_tx_types(supertx_size, bsize, 1) > 1 && !skip) {
int eset = get_ext_tx_set(supertx_size, bsize, 1);
if (eset > 0) {
vp10_write_token(
w, vp10_ext_tx_inter_tree[eset],
cm->fc->inter_ext_tx_prob[eset][supertx_size],
&ext_tx_inter_encodings[eset][mbmi->tx_type]);
}
}
#else
if (supertx_size < TX_32X32 && !skip) {
vp10_write_token(
w, vp10_ext_tx_tree,
cm->fc->inter_ext_tx_prob[supertx_size],
&ext_tx_encodings[mbmi->tx_type]);
}
#endif // CONFIG_EXT_TX
if (!skip) {
assert(*tok < tok_end);
for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
const int mbmi_txb_size = txsize_to_bsize[mbmi->tx_size];
const int num_4x4_w = num_4x4_blocks_wide_lookup[mbmi_txb_size];
const int num_4x4_h = num_4x4_blocks_high_lookup[mbmi_txb_size];
int row, col;
TX_SIZE tx = plane ? get_uv_tx_size(mbmi, &xd->plane[plane])
: mbmi->tx_size;
BLOCK_SIZE txb_size = txsize_to_bsize[tx];
int bw = num_4x4_blocks_wide_lookup[txb_size];
for (row = 0; row < num_4x4_h; row += bw)
for (col = 0; col < num_4x4_w; col += bw)
pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx);
assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN);
(*tok)++;
}
}
}
#endif // CONFIG_SUPERTX
// update partition context
#if CONFIG_EXT_PARTITION_TYPES
update_ext_partition_context(xd, mi_row, mi_col, subsize, bsize, partition);
#else
if (bsize >= BLOCK_8X8 &&
(bsize == BLOCK_8X8 || partition != PARTITION_SPLIT))
update_partition_context(xd, mi_row, mi_col, subsize, bsize);
#endif // CONFIG_EXT_PARTITION_TYPES
}
static void write_modes(VP10_COMP *const cpi,
const TileInfo *const tile,
vp10_writer *const w,
const TOKENEXTRA **tok,
const TOKENEXTRA *const tok_end) {
VP10_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
const int mi_row_start = tile->mi_row_start;
const int mi_row_end = tile->mi_row_end;
const int mi_col_start = tile->mi_col_start;
const int mi_col_end = tile->mi_col_end;
int mi_row, mi_col;
vp10_zero_above_context(cm, mi_col_start, mi_col_end);
for (mi_row = mi_row_start; mi_row < mi_row_end; mi_row += cm->mib_size) {
vp10_zero_left_context(xd);
for (mi_col = mi_col_start; mi_col < mi_col_end; mi_col += cm->mib_size) {
write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, 0,
mi_row, mi_col, cm->sb_size);
}
}
}
static void build_tree_distribution(VP10_COMP *cpi, TX_SIZE tx_size,
vp10_coeff_stats *coef_branch_ct,
vp10_coeff_probs_model *coef_probs) {
vp10_coeff_count *coef_counts = cpi->td.rd_counts.coef_counts[tx_size];
unsigned int (*eob_branch_ct)[REF_TYPES][COEF_BANDS][COEFF_CONTEXTS] =
cpi->common.counts.eob_branch[tx_size];
int i, j, k, l, m;
for (i = 0; i < PLANE_TYPES; ++i) {
for (j = 0; j < REF_TYPES; ++j) {
for (k = 0; k < COEF_BANDS; ++k) {
for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
vp10_tree_probs_from_distribution(vp10_coef_tree,
coef_branch_ct[i][j][k][l],
coef_counts[i][j][k][l]);
coef_branch_ct[i][j][k][l][0][1] = eob_branch_ct[i][j][k][l] -
coef_branch_ct[i][j][k][l][0][0];
for (m = 0; m < UNCONSTRAINED_NODES; ++m)
coef_probs[i][j][k][l][m] = get_binary_prob(
coef_branch_ct[i][j][k][l][m][0],
coef_branch_ct[i][j][k][l][m][1]);
}
}
}
}
}
static void update_coef_probs_common(vp10_writer* const bc, VP10_COMP *cpi,
TX_SIZE tx_size,
vp10_coeff_stats *frame_branch_ct,
vp10_coeff_probs_model *new_coef_probs) {
vp10_coeff_probs_model *old_coef_probs = cpi->common.fc->coef_probs[tx_size];
const vpx_prob upd = DIFF_UPDATE_PROB;
const int entropy_nodes_update = UNCONSTRAINED_NODES;
int i, j, k, l, t;
int stepsize = cpi->sf.coeff_prob_appx_step;
switch (cpi->sf.use_fast_coef_updates) {
case TWO_LOOP: {
/* dry run to see if there is any update at all needed */
int savings = 0;
int update[2] = {0, 0};
for (i = 0; i < PLANE_TYPES; ++i) {
for (j = 0; j < REF_TYPES; ++j) {
for (k = 0; k < COEF_BANDS; ++k) {
for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
for (t = 0; t < entropy_nodes_update; ++t) {
vpx_prob newp = new_coef_probs[i][j][k][l][t];
const vpx_prob oldp = old_coef_probs[i][j][k][l][t];
int s;
int u = 0;
if (t == PIVOT_NODE)
s = vp10_prob_diff_update_savings_search_model(
frame_branch_ct[i][j][k][l][0],
old_coef_probs[i][j][k][l], &newp, upd, stepsize);
else
s = vp10_prob_diff_update_savings_search(
frame_branch_ct[i][j][k][l][t], oldp, &newp, upd);
if (s > 0 && newp != oldp)
u = 1;
if (u)
savings += s - (int)(vp10_cost_zero(upd));
else
savings -= (int)(vp10_cost_zero(upd));
update[u]++;
}
}
}
}
}
/* Is coef updated at all */
if (update[1] == 0 || savings < 0) {
vp10_write_bit(bc, 0);
return;
}
vp10_write_bit(bc, 1);
for (i = 0; i < PLANE_TYPES; ++i) {
for (j = 0; j < REF_TYPES; ++j) {
for (k = 0; k < COEF_BANDS; ++k) {
for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
// calc probs and branch cts for this frame only
for (t = 0; t < entropy_nodes_update; ++t) {
vpx_prob newp = new_coef_probs[i][j][k][l][t];
vpx_prob *oldp = old_coef_probs[i][j][k][l] + t;
const vpx_prob upd = DIFF_UPDATE_PROB;
int s;
int u = 0;
if (t == PIVOT_NODE)
s = vp10_prob_diff_update_savings_search_model(
frame_branch_ct[i][j][k][l][0],
old_coef_probs[i][j][k][l], &newp, upd, stepsize);
else
s = vp10_prob_diff_update_savings_search(
frame_branch_ct[i][j][k][l][t],
*oldp, &newp, upd);
if (s > 0 && newp != *oldp)
u = 1;
vp10_write(bc, u, upd);
if (u) {
/* send/use new probability */
vp10_write_prob_diff_update(bc, newp, *oldp);
*oldp = newp;
}
}
}
}
}
}
return;
}
case ONE_LOOP_REDUCED: {
int updates = 0;
int noupdates_before_first = 0;
for (i = 0; i < PLANE_TYPES; ++i) {
for (j = 0; j < REF_TYPES; ++j) {
for (k = 0; k < COEF_BANDS; ++k) {
for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
// calc probs and branch cts for this frame only
for (t = 0; t < entropy_nodes_update; ++t) {
vpx_prob newp = new_coef_probs[i][j][k][l][t];
vpx_prob *oldp = old_coef_probs[i][j][k][l] + t;
int s;
int u = 0;
if (t == PIVOT_NODE) {
s = vp10_prob_diff_update_savings_search_model(
frame_branch_ct[i][j][k][l][0],
old_coef_probs[i][j][k][l], &newp, upd, stepsize);
} else {
s = vp10_prob_diff_update_savings_search(
frame_branch_ct[i][j][k][l][t],
*oldp, &newp, upd);
}
if (s > 0 && newp != *oldp)
u = 1;
updates += u;
if (u == 0 && updates == 0) {
noupdates_before_first++;
continue;
}
if (u == 1 && updates == 1) {
int v;
// first update
vp10_write_bit(bc, 1);
for (v = 0; v < noupdates_before_first; ++v)
vp10_write(bc, 0, upd);
}
vp10_write(bc, u, upd);
if (u) {
/* send/use new probability */
vp10_write_prob_diff_update(bc, newp, *oldp);
*oldp = newp;
}
}
}
}
}
}
if (updates == 0) {
vp10_write_bit(bc, 0); // no updates
}
return;
}
default:
assert(0);
}
}
#if CONFIG_ENTROPY
// Calculate the token counts between subsequent subframe updates.
static void get_coef_counts_diff(VP10_COMP *cpi, int index,
vp10_coeff_count
coef_counts[TX_SIZES][PLANE_TYPES],
unsigned int eob_counts[TX_SIZES]
[PLANE_TYPES][REF_TYPES][COEF_BANDS]
[COEFF_CONTEXTS]) {
int i, j, k, l, m, tx_size, val;
const int max_idx = cpi->common.coef_probs_update_idx;
const TX_MODE tx_mode = cpi->common.tx_mode;
const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
const SUBFRAME_STATS *subframe_stats = &cpi->subframe_stats;
assert(max_idx < COEF_PROBS_BUFS);
for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size)
for (i = 0; i < PLANE_TYPES; ++i)
for (j = 0; j < REF_TYPES; ++j)
for (k = 0; k < COEF_BANDS; ++k)
for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
if (index == max_idx) {
val = cpi->common.counts.eob_branch[tx_size][i][j][k][l] -
subframe_stats->eob_counts_buf[max_idx][tx_size][i][j][k][l];
} else {
val = subframe_stats->eob_counts_buf[index + 1][tx_size]
[i][j][k][l] -
subframe_stats->eob_counts_buf[index][tx_size][i][j][k][l];
}
assert(val >= 0);
eob_counts[tx_size][i][j][k][l] = val;
for (m = 0; m < ENTROPY_TOKENS; ++m) {
if (index == max_idx) {
val = cpi->td.rd_counts.coef_counts[tx_size][i][j][k][l][m] -
subframe_stats->coef_counts_buf[max_idx][tx_size]
[i][j][k][l][m];
} else {
val = subframe_stats->coef_counts_buf[index + 1]
[tx_size][i][j][k][l][m] -
subframe_stats->coef_counts_buf[index][tx_size]
[i][j][k][l][m];
}
assert(val >= 0);
coef_counts[tx_size][i][j][k][l][m] = val;
}
}
}
static void update_coef_probs_subframe(vp10_writer* const bc, VP10_COMP *cpi,
TX_SIZE tx_size,
vp10_coeff_stats
branch_ct[COEF_PROBS_BUFS][TX_SIZES]
[PLANE_TYPES],
vp10_coeff_probs_model *new_coef_probs) {
vp10_coeff_probs_model *old_coef_probs = cpi->common.fc->coef_probs[tx_size];
const vpx_prob upd = DIFF_UPDATE_PROB;
const int entropy_nodes_update = UNCONSTRAINED_NODES;
int i, j, k, l, t;
int stepsize = cpi->sf.coeff_prob_appx_step;
const int max_idx = cpi->common.coef_probs_update_idx;
int idx;
unsigned int this_branch_ct[ENTROPY_NODES][COEF_PROBS_BUFS][2];
switch (cpi->sf.use_fast_coef_updates) {
case TWO_LOOP: {
/* dry run to see if there is any update at all needed */
int savings = 0;
int update[2] = {0, 0};
for (i = 0; i < PLANE_TYPES; ++i) {
for (j = 0; j < REF_TYPES; ++j) {
for (k = 0; k < COEF_BANDS; ++k) {
for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
for (t = 0; t < ENTROPY_NODES; ++t) {
for (idx = 0; idx <= max_idx; ++idx) {
memcpy(this_branch_ct[t][idx],
branch_ct[idx][tx_size][i][j][k][l][t],
2 * sizeof(this_branch_ct[t][idx][0]));
}
}
for (t = 0; t < entropy_nodes_update; ++t) {
vpx_prob newp = new_coef_probs[i][j][k][l][t];
const vpx_prob oldp = old_coef_probs[i][j][k][l][t];
int s, u = 0;
if (t == PIVOT_NODE)
s = vp10_prob_update_search_model_subframe(this_branch_ct,
old_coef_probs[i][j][k][l], &newp, upd,
stepsize, max_idx);
else
s = vp10_prob_update_search_subframe(this_branch_ct[t],
oldp, &newp, upd,
max_idx);
if (s > 0 && newp != oldp)
u = 1;
if (u)
savings += s - (int)(vp10_cost_zero(upd));
else
savings -= (int)(vp10_cost_zero(upd));
update[u]++;
}
}
}
}
}
/* Is coef updated at all */
if (update[1] == 0 || savings < 0) {
vp10_write_bit(bc, 0);
return;
}
vp10_write_bit(bc, 1);
for (i = 0; i < PLANE_TYPES; ++i) {
for (j = 0; j < REF_TYPES; ++j) {
for (k = 0; k < COEF_BANDS; ++k) {
for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
for (t = 0; t < ENTROPY_NODES; ++t) {
for (idx = 0; idx <= max_idx; ++idx) {
memcpy(this_branch_ct[t][idx],
branch_ct[idx][tx_size][i][j][k][l][t],
2 * sizeof(this_branch_ct[t][idx][0]));
}
}
for (t = 0; t < entropy_nodes_update; ++t) {
vpx_prob newp = new_coef_probs[i][j][k][l][t];
vpx_prob *oldp = old_coef_probs[i][j][k][l] + t;
const vpx_prob upd = DIFF_UPDATE_PROB;
int s;
int u = 0;
if (t == PIVOT_NODE)
s = vp10_prob_update_search_model_subframe(this_branch_ct,
old_coef_probs[i][j][k][l], &newp, upd,
stepsize, max_idx);
else
s = vp10_prob_update_search_subframe(this_branch_ct[t],
*oldp, &newp, upd,
max_idx);
if (s > 0 && newp != *oldp)
u = 1;
vp10_write(bc, u, upd);
if (u) {
/* send/use new probability */
vp10_write_prob_diff_update(bc, newp, *oldp);
*oldp = newp;
}
}
}
}
}
}
return;
}
case ONE_LOOP_REDUCED: {
int updates = 0;
int noupdates_before_first = 0;
for (i = 0; i < PLANE_TYPES; ++i) {
for (j = 0; j < REF_TYPES; ++j) {
for (k = 0; k < COEF_BANDS; ++k) {
for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
for (t = 0; t < ENTROPY_NODES; ++t) {
for (idx = 0; idx <= max_idx; ++idx) {
memcpy(this_branch_ct[t][idx],
branch_ct[idx][tx_size][i][j][k][l][t],
2 * sizeof(this_branch_ct[t][idx][0]));
}
}
for (t = 0; t < entropy_nodes_update; ++t) {
vpx_prob newp = new_coef_probs[i][j][k][l][t];
vpx_prob *oldp = old_coef_probs[i][j][k][l] + t;
int s;
int u = 0;
if (t == PIVOT_NODE)
s = vp10_prob_update_search_model_subframe(this_branch_ct,
old_coef_probs[i][j][k][l], &newp, upd,
stepsize, max_idx);
else
s = vp10_prob_update_search_subframe(this_branch_ct[t],
*oldp, &newp, upd,
max_idx);
if (s > 0 && newp != *oldp)
u = 1;
updates += u;
if (u == 0 && updates == 0) {
noupdates_before_first++;
continue;
}
if (u == 1 && updates == 1) {
int v;
// first update
vp10_write_bit(bc, 1);
for (v = 0; v < noupdates_before_first; ++v)
vp10_write(bc, 0, upd);
}
vp10_write(bc, u, upd);
if (u) {
/* send/use new probability */
vp10_write_prob_diff_update(bc, newp, *oldp);
*oldp = newp;
}
}
}
}
}
}
if (updates == 0) {
vp10_write_bit(bc, 0); // no updates
}
return;
}
default:
assert(0);
}
}
#endif // CONFIG_ENTROPY
static void update_coef_probs(VP10_COMP *cpi, vp10_writer* w) {
const TX_MODE tx_mode = cpi->common.tx_mode;
const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
TX_SIZE tx_size;
#if CONFIG_ANS
int update = 0;
#endif // CONFIG_ANS
#if CONFIG_ENTROPY
VP10_COMMON *cm = &cpi->common;
SUBFRAME_STATS *subframe_stats = &cpi->subframe_stats;
unsigned int eob_counts_copy[TX_SIZES][PLANE_TYPES][REF_TYPES]
[COEF_BANDS][COEFF_CONTEXTS];
int i;
vp10_coeff_probs_model dummy_frame_coef_probs[PLANE_TYPES];
if (cm->do_subframe_update &&
cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
vp10_copy(cpi->common.fc->coef_probs,
subframe_stats->enc_starting_coef_probs);
for (i = 0; i <= cpi->common.coef_probs_update_idx; ++i) {
get_coef_counts_diff(cpi, i,
cpi->wholeframe_stats.coef_counts_buf[i],
cpi->wholeframe_stats.eob_counts_buf[i]);
}
}
#endif // CONFIG_ENTROPY
for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size) {
vp10_coeff_stats frame_branch_ct[PLANE_TYPES];
vp10_coeff_probs_model frame_coef_probs[PLANE_TYPES];
if (cpi->td.counts->tx_size_totals[tx_size] <= 20 ||
(tx_size >= TX_16X16 && cpi->sf.tx_size_search_method == USE_TX_8X8)) {
vp10_write_bit(w, 0);
} else {
#if CONFIG_ENTROPY
if (cm->do_subframe_update &&
cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
unsigned int eob_counts_copy[PLANE_TYPES][REF_TYPES]
[COEF_BANDS][COEFF_CONTEXTS];
vp10_coeff_count coef_counts_copy[PLANE_TYPES];
vp10_copy(eob_counts_copy, cpi->common.counts.eob_branch[tx_size]);
vp10_copy(coef_counts_copy, cpi->td.rd_counts.coef_counts[tx_size]);
build_tree_distribution(cpi, tx_size, frame_branch_ct,
frame_coef_probs);
for (i = 0; i <= cpi->common.coef_probs_update_idx; ++i) {
vp10_copy(cpi->common.counts.eob_branch[tx_size],
cpi->wholeframe_stats.eob_counts_buf[i][tx_size]);
vp10_copy(cpi->td.rd_counts.coef_counts[tx_size],
cpi->wholeframe_stats.coef_counts_buf[i][tx_size]);
build_tree_distribution(cpi, tx_size,
cpi->branch_ct_buf[i][tx_size],
dummy_frame_coef_probs);
}
vp10_copy(cpi->common.counts.eob_branch[tx_size], eob_counts_copy);
vp10_copy(cpi->td.rd_counts.coef_counts[tx_size], coef_counts_copy);
update_coef_probs_subframe(w, cpi, tx_size, cpi->branch_ct_buf,
frame_coef_probs);
#if CONFIG_ANS
update = 1;
#endif // CONFIG_ANS
} else {
#endif // CONFIG_ENTROPY
build_tree_distribution(cpi, tx_size, frame_branch_ct,
frame_coef_probs);
update_coef_probs_common(w, cpi, tx_size, frame_branch_ct,
frame_coef_probs);
#if CONFIG_ANS
update = 1;
#endif // CONFIG_ANS
#if CONFIG_ENTROPY
}
#endif // CONFIG_ENTROPY
}
}
#if CONFIG_ENTROPY
vp10_copy(cm->starting_coef_probs, cm->fc->coef_probs);
vp10_copy(subframe_stats->coef_probs_buf[0], cm->fc->coef_probs);
if (cm->do_subframe_update &&
cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
vp10_copy(eob_counts_copy, cm->counts.eob_branch);
for (i = 1; i <= cpi->common.coef_probs_update_idx; ++i) {
for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size)
vp10_full_to_model_counts(cm->counts.coef[tx_size],
subframe_stats->coef_counts_buf[i][tx_size]);
vp10_copy(cm->counts.eob_branch, subframe_stats->eob_counts_buf[i]);
vp10_partial_adapt_probs(cm, 0, 0);
vp10_copy(subframe_stats->coef_probs_buf[i], cm->fc->coef_probs);
}
vp10_copy(cm->fc->coef_probs, subframe_stats->coef_probs_buf[0]);
vp10_copy(cm->counts.eob_branch, eob_counts_copy);
}
#endif // CONFIG_ENTROPY
#if CONFIG_ANS
if (update) vp10_coef_pareto_cdfs(cpi->common.fc);
#endif // CONFIG_ANS
}
#if CONFIG_LOOP_RESTORATION
static void encode_restoration(VP10_COMMON *cm,
struct vpx_write_bit_buffer *wb) {
RestorationInfo *rst = &cm->rst_info;
vpx_wb_write_bit(wb, rst->restoration_type != RESTORE_NONE);
if (rst->restoration_type != RESTORE_NONE) {
if (rst->restoration_type == RESTORE_BILATERAL) {
vpx_wb_write_bit(wb, 1);
vpx_wb_write_literal(wb, rst->restoration_level,
vp10_restoration_level_bits(cm));
} else {
vpx_wb_write_bit(wb, 0);
vpx_wb_write_literal(
wb, rst->vfilter[0] - WIENER_FILT_TAP0_MINV, WIENER_FILT_TAP0_BITS);
vpx_wb_write_literal(
wb, rst->vfilter[1] - WIENER_FILT_TAP1_MINV, WIENER_FILT_TAP1_BITS);
vpx_wb_write_literal(
wb, rst->vfilter[2] - WIENER_FILT_TAP2_MINV, WIENER_FILT_TAP2_BITS);
vpx_wb_write_literal(
wb, rst->hfilter[0] - WIENER_FILT_TAP0_MINV, WIENER_FILT_TAP0_BITS);
vpx_wb_write_literal(
wb, rst->hfilter[1] - WIENER_FILT_TAP1_MINV, WIENER_FILT_TAP1_BITS);
vpx_wb_write_literal(
wb, rst->hfilter[2] - WIENER_FILT_TAP2_MINV, WIENER_FILT_TAP2_BITS);
}
}
}
#endif // CONFIG_LOOP_RESTORATION
static void encode_loopfilter(VP10_COMMON *cm,
struct vpx_write_bit_buffer *wb) {
int i;
struct loopfilter *lf = &cm->lf;
// Encode the loop filter level and type
vpx_wb_write_literal(wb, lf->filter_level, 6);
vpx_wb_write_literal(wb, lf->sharpness_level, 3);
// Write out loop filter deltas applied at the MB level based on mode or
// ref frame (if they are enabled).
vpx_wb_write_bit(wb, lf->mode_ref_delta_enabled);
if (lf->mode_ref_delta_enabled) {
vpx_wb_write_bit(wb, lf->mode_ref_delta_update);
if (lf->mode_ref_delta_update) {
for (i = 0; i < MAX_REF_FRAMES; i++) {
const int delta = lf->ref_deltas[i];
const int changed = delta != lf->last_ref_deltas[i];
vpx_wb_write_bit(wb, changed);
if (changed) {
lf->last_ref_deltas[i] = delta;
vpx_wb_write_inv_signed_literal(wb, delta, 6);
}
}
for (i = 0; i < MAX_MODE_LF_DELTAS; i++) {
const int delta = lf->mode_deltas[i];
const int changed = delta != lf->last_mode_deltas[i];
vpx_wb_write_bit(wb, changed);
if (changed) {
lf->last_mode_deltas[i] = delta;
vpx_wb_write_inv_signed_literal(wb, delta, 6);
}
}
}
}
}
static void write_delta_q(struct vpx_write_bit_buffer *wb, int delta_q) {
if (delta_q != 0) {
vpx_wb_write_bit(wb, 1);
vpx_wb_write_inv_signed_literal(wb, delta_q, 6);
} else {
vpx_wb_write_bit(wb, 0);
}
}
static void encode_quantization(const VP10_COMMON *const cm,
struct vpx_write_bit_buffer *wb) {
vpx_wb_write_literal(wb, cm->base_qindex, QINDEX_BITS);
write_delta_q(wb, cm->y_dc_delta_q);
write_delta_q(wb, cm->uv_dc_delta_q);
write_delta_q(wb, cm->uv_ac_delta_q);
}
static void encode_segmentation(VP10_COMMON *cm, MACROBLOCKD *xd,
struct vpx_write_bit_buffer *wb) {
int i, j;
const struct segmentation *seg = &cm->seg;
vpx_wb_write_bit(wb, seg->enabled);
if (!seg->enabled)
return;
// Segmentation map
if (!frame_is_intra_only(cm) && !cm->error_resilient_mode) {
vpx_wb_write_bit(wb, seg->update_map);
} else {
assert(seg->update_map == 1);
}
if (seg->update_map) {
// Select the coding strategy (temporal or spatial)
vp10_choose_segmap_coding_method(cm, xd);
// Write out the chosen coding method.
if (!frame_is_intra_only(cm) && !cm->error_resilient_mode) {
vpx_wb_write_bit(wb, seg->temporal_update);
} else {
assert(seg->temporal_update == 0);
}
}
// Segmentation data
vpx_wb_write_bit(wb, seg->update_data);
if (seg->update_data) {
vpx_wb_write_bit(wb, seg->abs_delta);
for (i = 0; i < MAX_SEGMENTS; i++) {
for (j = 0; j < SEG_LVL_MAX; j++) {
const int active = segfeature_active(seg, i, j);
vpx_wb_write_bit(wb, active);
if (active) {
const int data = get_segdata(seg, i, j);
const int data_max = vp10_seg_feature_data_max(j);
if (vp10_is_segfeature_signed(j)) {
encode_unsigned_max(wb, abs(data), data_max);
vpx_wb_write_bit(wb, data < 0);
} else {
encode_unsigned_max(wb, data, data_max);
}
}
}
}
}
}
static void update_seg_probs(VP10_COMP *cpi, vp10_writer *w) {
VP10_COMMON *cm = &cpi->common;
if (!cpi->common.seg.enabled)
return;
if (cpi->common.seg.temporal_update) {
int i;
for (i = 0; i < PREDICTION_PROBS; i++)
vp10_cond_prob_diff_update(w, &cm->fc->seg.pred_probs[i],
cm->counts.seg.pred[i]);
prob_diff_update(vp10_segment_tree, cm->fc->seg.tree_probs,
cm->counts.seg.tree_mispred, MAX_SEGMENTS, w);
} else {
prob_diff_update(vp10_segment_tree, cm->fc->seg.tree_probs,
cm->counts.seg.tree_total, MAX_SEGMENTS, w);
}
}
static void write_txfm_mode(TX_MODE mode, struct vpx_write_bit_buffer *wb) {
vpx_wb_write_bit(wb, mode == TX_MODE_SELECT);
if (mode != TX_MODE_SELECT)
vpx_wb_write_literal(wb, mode, 2);
}
static void update_txfm_probs(VP10_COMMON *cm, vp10_writer *w,
FRAME_COUNTS *counts) {
if (cm->tx_mode == TX_MODE_SELECT) {
int i, j;
for (i = 0; i < TX_SIZES - 1; ++i)
for (j = 0; j < TX_SIZE_CONTEXTS; ++j)
prob_diff_update(vp10_tx_size_tree[i],
cm->fc->tx_size_probs[i][j],
counts->tx_size[i][j], i + 2, w);
}
}
static void write_interp_filter(INTERP_FILTER filter,
struct vpx_write_bit_buffer *wb) {
vpx_wb_write_bit(wb, filter == SWITCHABLE);
if (filter != SWITCHABLE)
vpx_wb_write_literal(wb, filter, 2 + CONFIG_EXT_INTERP);
}
static void fix_interp_filter(VP10_COMMON *cm, FRAME_COUNTS *counts) {
if (cm->interp_filter == SWITCHABLE) {
// Check to see if only one of the filters is actually used
int count[SWITCHABLE_FILTERS];
int i, j, c = 0;
for (i = 0; i < SWITCHABLE_FILTERS; ++i) {
count[i] = 0;
for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j)
count[i] += counts->switchable_interp[j][i];
c += (count[i] > 0);
}
if (c == 1) {
// Only one filter is used. So set the filter at frame level
for (i = 0; i < SWITCHABLE_FILTERS; ++i) {
if (count[i]) {
cm->interp_filter = i;
break;
}
}
}
}
}
static void write_tile_info(const VP10_COMMON *const cm,
struct vpx_write_bit_buffer *wb) {
#if CONFIG_EXT_TILE
const int tile_width =
ALIGN_POWER_OF_TWO(cm->tile_width, cm->mib_size_log2) >> cm->mib_size_log2;
const int tile_height =
ALIGN_POWER_OF_TWO(cm->tile_height, cm->mib_size_log2) >> cm->mib_size_log2;
assert(tile_width > 0);
assert(tile_height > 0);
// Write the tile sizes
#if CONFIG_EXT_PARTITION
if (cm->sb_size == BLOCK_128X128) {
assert(tile_width <= 32);
assert(tile_height <= 32);
vpx_wb_write_literal(wb, tile_width - 1, 5);
vpx_wb_write_literal(wb, tile_height - 1, 5);
} else
#endif // CONFIG_EXT_PARTITION
{
assert(tile_width <= 64);
assert(tile_height <= 64);
vpx_wb_write_literal(wb, tile_width - 1, 6);
vpx_wb_write_literal(wb, tile_height - 1, 6);
}
#else
int min_log2_tile_cols, max_log2_tile_cols, ones;
vp10_get_tile_n_bits(cm->mi_cols, &min_log2_tile_cols, &max_log2_tile_cols);
// columns
ones = cm->log2_tile_cols - min_log2_tile_cols;
while (ones--)
vpx_wb_write_bit(wb, 1);
if (cm->log2_tile_cols < max_log2_tile_cols)
vpx_wb_write_bit(wb, 0);
// rows
vpx_wb_write_bit(wb, cm->log2_tile_rows != 0);
if (cm->log2_tile_rows != 0)
vpx_wb_write_bit(wb, cm->log2_tile_rows != 1);
#endif // CONFIG_EXT_TILE
}
static int get_refresh_mask(VP10_COMP *cpi) {
int refresh_mask = 0;
#if CONFIG_EXT_REFS
// NOTE(zoeliu): When LAST_FRAME is to get refreshed, the decoder will be
// notified to get LAST3_FRAME refreshed and then the virtual indexes for all
// the 3 LAST reference frames will be updated accordingly, i.e.:
// (1) The original virtual index for LAST3_FRAME will become the new virtual
// index for LAST_FRAME; and
// (2) The original virtual indexes for LAST_FRAME and LAST2_FRAME will be
// shifted and become the new virtual indexes for LAST2_FRAME and
// LAST3_FRAME.
refresh_mask |=
(cpi->refresh_last_frame << cpi->lst_fb_idxes[LAST_REF_FRAMES - 1]);
refresh_mask |= (cpi->refresh_bwd_ref_frame << cpi->bwd_fb_idx);
#else
refresh_mask |= (cpi->refresh_last_frame << cpi->lst_fb_idx);
#endif // CONFIG_EXT_REFS
if (vp10_preserve_existing_gf(cpi)) {
// We have decided to preserve the previously existing golden frame as our
// new ARF frame. However, in the short term we leave it in the GF slot and,
// if we're updating the GF with the current decoded frame, we save it
// instead to the ARF slot.
// Later, in the function vp10_encoder.c:vp10_update_reference_frames() we
// will swap gld_fb_idx and alt_fb_idx to achieve our objective. We do it
// there so that it can be done outside of the recode loop.
// Note: This is highly specific to the use of ARF as a forward reference,
// and this needs to be generalized as other uses are implemented
// (like RTC/temporal scalability).
return refresh_mask | (cpi->refresh_golden_frame << cpi->alt_fb_idx);
} else {
int arf_idx = cpi->alt_fb_idx;
if ((cpi->oxcf.pass == 2) && cpi->multi_arf_allowed) {
const GF_GROUP *const gf_group = &cpi->twopass.gf_group;
arf_idx = gf_group->arf_update_idx[gf_group->index];
}
return refresh_mask |
(cpi->refresh_golden_frame << cpi->gld_fb_idx) |
(cpi->refresh_alt_ref_frame << arf_idx);
}
}
#if CONFIG_EXT_TILE
static INLINE int find_identical_tile(
const int tile_row, const int tile_col,
TileBufferEnc (*const tile_buffers)[1024]) {
const MV32 candidate_offset[1] = {{1, 0}};
const uint8_t *const cur_tile_data =
tile_buffers[tile_row][tile_col].data + 4;
const unsigned int cur_tile_size = tile_buffers[tile_row][tile_col].size;
int i;
if (tile_row == 0)
return 0;
// (TODO: yunqingwang) For now, only above tile is checked and used.
// More candidates such as left tile can be added later.
for (i = 0; i < 1; i++) {
int row_offset = candidate_offset[0].row;
int col_offset = candidate_offset[0].col;
int row = tile_row - row_offset;
int col = tile_col - col_offset;
uint8_t tile_hdr;
const uint8_t *tile_data;
TileBufferEnc *candidate;
if (row < 0 || col < 0)
continue;
tile_hdr = *(tile_buffers[row][col].data);
// Read out tcm bit
if ((tile_hdr >> 7) == 1) {
// The candidate is a copy tile itself
row_offset += tile_hdr & 0x7f;
row = tile_row - row_offset;
}
candidate = &tile_buffers[row][col];
if (row_offset >= 128 || candidate->size != cur_tile_size)
continue;
tile_data = candidate->data + 4;
if (memcmp(tile_data, cur_tile_data, cur_tile_size) != 0)
continue;
// Identical tile found
assert(row_offset > 0);
return row_offset;
}
// No identical tile found
return 0;
}
#endif // CONFIG_EXT_TILE
static uint32_t write_tiles(VP10_COMP *const cpi,
uint8_t *const dst,
unsigned int *max_tile_size,
unsigned int *max_tile_col_size) {
const VP10_COMMON *const cm = &cpi->common;
#if CONFIG_ANS
struct AnsCoder token_ans;
#else
vp10_writer mode_bc;
#endif // CONFIG_ANS
int tile_row, tile_col;
TOKENEXTRA *(*const tok_buffers)[MAX_TILE_COLS] = cpi->tile_tok;
TileBufferEnc (*const tile_buffers)[MAX_TILE_COLS] = cpi->tile_buffers;
size_t total_size = 0;
const int tile_cols = cm->tile_cols;
const int tile_rows = cm->tile_rows;
#if CONFIG_EXT_TILE
const int have_tiles = tile_cols * tile_rows > 1;
#endif // CONFIG_EXT_TILE
#if CONFIG_ANS
BufAnsCoder *buf_ans = &cpi->buf_ans;
#endif // CONFIG_ANS
*max_tile_size = 0;
*max_tile_col_size = 0;
// All tile size fields are output on 4 bytes. A call to remux_tiles will
// later compact the data if smaller headers are adequate.
#if CONFIG_EXT_TILE
for (tile_col = 0; tile_col < tile_cols; tile_col++) {
TileInfo tile_info;
const int is_last_col = (tile_col == tile_cols - 1);
const size_t col_offset = total_size;
vp10_tile_set_col(&tile_info, cm, tile_col);
// The last column does not have a column header
if (!is_last_col)
total_size += 4;
for (tile_row = 0; tile_row < tile_rows; tile_row++) {
TileBufferEnc *const buf = &tile_buffers[tile_row][tile_col];
unsigned int tile_size;
const TOKENEXTRA *tok = tok_buffers[tile_row][tile_col];
const TOKENEXTRA *tok_end = tok + cpi->tok_count[tile_row][tile_col];
const int data_offset = have_tiles ? 4 : 0;
vp10_tile_set_row(&tile_info, cm, tile_row);
buf->data = dst + total_size;
// Is CONFIG_EXT_TILE = 1, every tile in the row has a header,
// even for the last one, unless no tiling is used at all.
total_size += data_offset;
#if !CONFIG_ANS
vpx_start_encode(&mode_bc, buf->data + data_offset);
write_modes(cpi, &tile_info, &mode_bc, &tok, tok_end);
assert(tok == tok_end);
vpx_stop_encode(&mode_bc);
tile_size = mode_bc.pos;
#else
buf_ans_write_reset(buf_ans);
write_modes(cpi, &tile_info, buf_ans, &tok, tok_end);
assert(tok == tok_end);
ans_write_init(&token_ans, buf->data + data_offset);
buf_ans_flush(buf_ans, &token_ans);
tile_size = ans_write_end(&token_ans);
#endif // !CONFIG_ANS
buf->size = tile_size;
// Record the maximum tile size we see, so we can compact headers later.
*max_tile_size = VPXMAX(*max_tile_size, tile_size);
if (have_tiles) {
// tile header: size of this tile, or copy offset
uint32_t tile_header = tile_size;
// Check if this tile is a copy tile.
// Very low chances to have copy tiles on the key frames, so don't
// search on key frames to reduce unnecessary search.
if (cm->frame_type != KEY_FRAME) {
const int idendical_tile_offset =
find_identical_tile(tile_row, tile_col, tile_buffers);
if (idendical_tile_offset > 0) {
tile_size = 0;
tile_header = idendical_tile_offset | 0x80;
tile_header <<= 24;
}
}
mem_put_le32(buf->data, tile_header);
}
total_size += tile_size;
}
if (!is_last_col) {
size_t col_size = total_size - col_offset - 4;
mem_put_le32(dst + col_offset, col_size);
// If it is not final packing, record the maximum tile column size we see,
// otherwise, check if the tile size is out of the range.
*max_tile_col_size = VPXMAX(*max_tile_col_size, col_size);
}
}
#else
for (tile_row = 0; tile_row < tile_rows; tile_row++) {
TileInfo tile_info;
const int is_last_row = (tile_row == tile_rows - 1);
vp10_tile_set_row(&tile_info, cm, tile_row);
for (tile_col = 0; tile_col < tile_cols; tile_col++) {
TileBufferEnc *const buf = &tile_buffers[tile_row][tile_col];
const int is_last_col = (tile_col == tile_cols - 1);
const int is_last_tile = is_last_col && is_last_row;
unsigned int tile_size;
const TOKENEXTRA *tok = tok_buffers[tile_row][tile_col];
const TOKENEXTRA *tok_end = tok + cpi->tok_count[tile_row][tile_col];
vp10_tile_set_col(&tile_info, cm, tile_col);
buf->data = dst + total_size;
// The last tile does not have a header.
if (!is_last_tile)
total_size += 4;
#if !CONFIG_ANS
vpx_start_encode(&mode_bc, dst + total_size);
write_modes(cpi, &tile_info, &mode_bc, &tok, tok_end);
assert(tok == tok_end);
vpx_stop_encode(&mode_bc);
tile_size = mode_bc.pos;
#else
buf_ans_write_reset(buf_ans);
write_modes(cpi, &tile_info, buf_ans, &tok, tok_end);
assert(tok == tok_end);
ans_write_init(&token_ans, dst + total_size);
buf_ans_flush(buf_ans, &token_ans);
tile_size = ans_write_end(&token_ans);
#endif // !CONFIG_ANS
assert(tile_size > 0);
buf->size = tile_size;
if (!is_last_tile) {
*max_tile_size = VPXMAX(*max_tile_size, tile_size);
// size of this tile
mem_put_le32(buf->data, tile_size);
}
total_size += tile_size;
}
}
#endif // CONFIG_EXT_TILE
return (uint32_t)total_size;
}
static void write_render_size(const VP10_COMMON *cm,
struct vpx_write_bit_buffer *wb) {
const int scaling_active = cm->width != cm->render_width ||
cm->height != cm->render_height;
vpx_wb_write_bit(wb, scaling_active);
if (scaling_active) {
vpx_wb_write_literal(wb, cm->render_width - 1, 16);
vpx_wb_write_literal(wb, cm->render_height - 1, 16);
}
}
static void write_frame_size(const VP10_COMMON *cm,
struct vpx_write_bit_buffer *wb) {
vpx_wb_write_literal(wb, cm->width - 1, 16);
vpx_wb_write_literal(wb, cm->height - 1, 16);
write_render_size(cm, wb);
}
static void write_frame_size_with_refs(VP10_COMP *cpi,
struct vpx_write_bit_buffer *wb) {
VP10_COMMON *const cm = &cpi->common;
int found = 0;
MV_REFERENCE_FRAME ref_frame;
for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
YV12_BUFFER_CONFIG *cfg = get_ref_frame_buffer(cpi, ref_frame);
if (cfg != NULL) {
found = cm->width == cfg->y_crop_width &&
cm->height == cfg->y_crop_height;
found &= cm->render_width == cfg->render_width &&
cm->render_height == cfg->render_height;
}
vpx_wb_write_bit(wb, found);
if (found) {
break;
}
}
if (!found) {
vpx_wb_write_literal(wb, cm->width - 1, 16);
vpx_wb_write_literal(wb, cm->height - 1, 16);
write_render_size(cm, wb);
}
}
static void write_sync_code(struct vpx_write_bit_buffer *wb) {
vpx_wb_write_literal(wb, VP10_SYNC_CODE_0, 8);
vpx_wb_write_literal(wb, VP10_SYNC_CODE_1, 8);
vpx_wb_write_literal(wb, VP10_SYNC_CODE_2, 8);
}
static void write_profile(BITSTREAM_PROFILE profile,
struct vpx_write_bit_buffer *wb) {
switch (profile) {
case PROFILE_0:
vpx_wb_write_literal(wb, 0, 2);
break;
case PROFILE_1:
vpx_wb_write_literal(wb, 2, 2);
break;
case PROFILE_2:
vpx_wb_write_literal(wb, 1, 2);
break;
case PROFILE_3:
vpx_wb_write_literal(wb, 6, 3);
break;
default:
assert(0);
}
}
static void write_bitdepth_colorspace_sampling(
VP10_COMMON *const cm, struct vpx_write_bit_buffer *wb) {
if (cm->profile >= PROFILE_2) {
assert(cm->bit_depth > VPX_BITS_8);
vpx_wb_write_bit(wb, cm->bit_depth == VPX_BITS_10 ? 0 : 1);
}
vpx_wb_write_literal(wb, cm->color_space, 3);
if (cm->color_space != VPX_CS_SRGB) {
// 0: [16, 235] (i.e. xvYCC), 1: [0, 255]
vpx_wb_write_bit(wb, cm->color_range);
if (cm->profile == PROFILE_1 || cm->profile == PROFILE_3) {
assert(cm->subsampling_x != 1 || cm->subsampling_y != 1);
vpx_wb_write_bit(wb, cm->subsampling_x);
vpx_wb_write_bit(wb, cm->subsampling_y);
vpx_wb_write_bit(wb, 0); // unused
} else {
assert(cm->subsampling_x == 1 && cm->subsampling_y == 1);
}
} else {
assert(cm->profile == PROFILE_1 || cm->profile == PROFILE_3);
vpx_wb_write_bit(wb, 0); // unused
}
}
static void write_uncompressed_header(VP10_COMP *cpi,
struct vpx_write_bit_buffer *wb) {
VP10_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
vpx_wb_write_literal(wb, VP9_FRAME_MARKER, 2);
write_profile(cm->profile, wb);
#if CONFIG_EXT_REFS
// NOTE: By default all coded frames to be used as a reference
cm->is_reference_frame = 1;
if (cm->show_existing_frame) {
RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs;
const int frame_to_show =
cm->ref_frame_map[cpi->existing_fb_idx_to_show];
if (frame_to_show < 0 || frame_bufs[frame_to_show].ref_count < 1) {
vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
"Buffer %d does not contain a reconstructed frame",
frame_to_show);
}
ref_cnt_fb(frame_bufs, &cm->new_fb_idx, frame_to_show);
vpx_wb_write_bit(wb, 1); // show_existing_frame
vpx_wb_write_literal(wb, cpi->existing_fb_idx_to_show, 3);
return;
} else {
#endif // CONFIG_EXT_REFS
vpx_wb_write_bit(wb, 0); // show_existing_frame
#if CONFIG_EXT_REFS
}
#endif // CONFIG_EXT_REFS
vpx_wb_write_bit(wb, cm->frame_type);
vpx_wb_write_bit(wb, cm->show_frame);
vpx_wb_write_bit(wb, cm->error_resilient_mode);
if (cm->frame_type == KEY_FRAME) {
write_sync_code(wb);
write_bitdepth_colorspace_sampling(cm, wb);
write_frame_size(cm, wb);
if (frame_is_intra_only(cm))
vpx_wb_write_bit(wb, cm->allow_screen_content_tools);
} else {
if (!cm->show_frame)
vpx_wb_write_bit(wb, cm->intra_only);
if (!cm->error_resilient_mode) {
if (cm->intra_only) {
vpx_wb_write_bit(wb,
cm->reset_frame_context == RESET_FRAME_CONTEXT_ALL);
} else {
vpx_wb_write_bit(wb,
cm->reset_frame_context != RESET_FRAME_CONTEXT_NONE);
if (cm->reset_frame_context != RESET_FRAME_CONTEXT_NONE)
vpx_wb_write_bit(wb,
cm->reset_frame_context == RESET_FRAME_CONTEXT_ALL);
}
}
#if CONFIG_EXT_REFS
cpi->refresh_frame_mask = get_refresh_mask(cpi);
#endif // CONFIG_EXT_REFS
if (cm->intra_only) {
write_sync_code(wb);
write_bitdepth_colorspace_sampling(cm, wb);
#if CONFIG_EXT_REFS
vpx_wb_write_literal(wb, cpi->refresh_frame_mask, REF_FRAMES);
#else
vpx_wb_write_literal(wb, get_refresh_mask(cpi), REF_FRAMES);
#endif // CONFIG_EXT_REFS
write_frame_size(cm, wb);
} else {
MV_REFERENCE_FRAME ref_frame;
#if CONFIG_EXT_REFS
vpx_wb_write_literal(wb, cpi->refresh_frame_mask, REF_FRAMES);
#else
vpx_wb_write_literal(wb, get_refresh_mask(cpi), REF_FRAMES);
#endif // CONFIG_EXT_REFS
#if CONFIG_EXT_REFS
if (!cpi->refresh_frame_mask) {
// NOTE: "cpi->refresh_frame_mask == 0" indicates that the coded frame
// will not be used as a reference
cm->is_reference_frame = 0;
}
#endif // CONFIG_EXT_REFS
for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
assert(get_ref_frame_map_idx(cpi, ref_frame) != INVALID_IDX);
vpx_wb_write_literal(wb, get_ref_frame_map_idx(cpi, ref_frame),
REF_FRAMES_LOG2);
vpx_wb_write_bit(wb, cm->ref_frame_sign_bias[ref_frame]);
}
write_frame_size_with_refs(cpi, wb);
vpx_wb_write_bit(wb, cm->allow_high_precision_mv);
fix_interp_filter(cm, cpi->td.counts);
write_interp_filter(cm->interp_filter, wb);
}
}
if (!cm->error_resilient_mode) {
vpx_wb_write_bit(wb,
cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_FORWARD);
}
vpx_wb_write_literal(wb, cm->frame_context_idx, FRAME_CONTEXTS_LOG2);
assert(cm->mib_size == num_8x8_blocks_wide_lookup[cm->sb_size]);
assert(cm->mib_size == 1 << cm->mib_size_log2);
#if CONFIG_EXT_PARTITION
assert(cm->sb_size == BLOCK_128X128 || cm->sb_size == BLOCK_64X64);
vpx_wb_write_bit(wb, cm->sb_size == BLOCK_128X128 ? 1 : 0);
#else
assert(cm->sb_size == BLOCK_64X64);
#endif // CONFIG_EXT_PARTITION
encode_loopfilter(cm, wb);
#if CONFIG_LOOP_RESTORATION
encode_restoration(cm, wb);
#endif // CONFIG_LOOP_RESTORATION
encode_quantization(cm, wb);
encode_segmentation(cm, xd, wb);
if (!cm->seg.enabled && xd->lossless[0])
cm->tx_mode = TX_4X4;
else
write_txfm_mode(cm->tx_mode, wb);
if (cpi->allow_comp_inter_inter) {
const int use_hybrid_pred = cm->reference_mode == REFERENCE_MODE_SELECT;
const int use_compound_pred = cm->reference_mode != SINGLE_REFERENCE;
vpx_wb_write_bit(wb, use_hybrid_pred);
if (!use_hybrid_pred)
vpx_wb_write_bit(wb, use_compound_pred);
}
write_tile_info(cm, wb);
}
#if CONFIG_GLOBAL_MOTION
static void write_global_motion_params(Global_Motion_Params *params,
vpx_prob *probs,
vp10_writer *w) {
GLOBAL_MOTION_TYPE gmtype = get_gmtype(params);
vp10_write_token(w, vp10_global_motion_types_tree, probs,
&global_motion_types_encodings[gmtype]);
switch (gmtype) {
case GLOBAL_ZERO:
break;
case GLOBAL_TRANSLATION:
vp10_write_primitive_symmetric(w, params->motion_params.wmmat[0],
GM_ABS_TRANS_BITS);
vp10_write_primitive_symmetric(w, params->motion_params.wmmat[1],
GM_ABS_TRANS_BITS);
break;
case GLOBAL_ROTZOOM:
vp10_write_primitive_symmetric(w, params->motion_params.wmmat[0],
GM_ABS_TRANS_BITS);
vp10_write_primitive_symmetric(w, params->motion_params.wmmat[1],
GM_ABS_TRANS_BITS);
vp10_write_primitive_symmetric(w, params->motion_params.wmmat[2],
GM_ABS_ALPHA_BITS);
vp10_write_primitive_symmetric(w, params->motion_params.wmmat[3],
GM_ABS_ALPHA_BITS);
break;
default:
assert(0);
}
}
static void write_global_motion(VP10_COMP *cpi, vp10_writer *w) {
VP10_COMMON *const cm = &cpi->common;
int frame;
for (frame = LAST_FRAME; frame <= ALTREF_FRAME; ++frame) {
if (!cpi->global_motion_used[frame]) {
memset(&cm->global_motion[frame], 0,
sizeof(*cm->global_motion));
}
write_global_motion_params(
&cm->global_motion[frame], cm->fc->global_motion_types_prob, w);
}
}
#endif
static uint32_t write_compressed_header(VP10_COMP *cpi, uint8_t *data) {
VP10_COMMON *const cm = &cpi->common;
#if CONFIG_SUPERTX
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
#endif // CONFIG_SUPERTX
FRAME_CONTEXT *const fc = cm->fc;
FRAME_COUNTS *counts = cpi->td.counts;
vp10_writer *header_bc;
int i, j;
#if CONFIG_ANS
struct AnsCoder header_ans;
int header_size;
header_bc = &cpi->buf_ans;
buf_ans_write_reset(header_bc);
#else
vp10_writer real_header_bc;
header_bc = &real_header_bc;
vpx_start_encode(header_bc, data);
#endif
update_txfm_probs(cm, header_bc, counts);
update_coef_probs(cpi, header_bc);
#if CONFIG_VAR_TX
update_txfm_partition_probs(cm, header_bc, counts);
#endif
update_skip_probs(cm, header_bc, counts);
update_seg_probs(cpi, header_bc);
for (i = 0; i < INTRA_MODES; ++i)
prob_diff_update(vp10_intra_mode_tree, fc->uv_mode_prob[i],
counts->uv_mode[i], INTRA_MODES, header_bc);
#if CONFIG_EXT_PARTITION_TYPES
prob_diff_update(vp10_partition_tree, fc->partition_prob[0],
counts->partition[0], PARTITION_TYPES, header_bc);
for (i = 1; i < PARTITION_CONTEXTS; ++i)
prob_diff_update(vp10_ext_partition_tree, fc->partition_prob[i],
counts->partition[i], EXT_PARTITION_TYPES,
header_bc);
#else
for (i = 0; i < PARTITION_CONTEXTS; ++i)
prob_diff_update(vp10_partition_tree, fc->partition_prob[i],
counts->partition[i], PARTITION_TYPES, header_bc);
#endif // CONFIG_EXT_PARTITION_TYPES
#if CONFIG_EXT_INTRA
for (i = 0; i < INTRA_FILTERS + 1; ++i)
prob_diff_update(vp10_intra_filter_tree, fc->intra_filter_probs[i],
counts->intra_filter[i], INTRA_FILTERS, header_bc);
#endif // CONFIG_EXT_INTRA
if (frame_is_intra_only(cm)) {
vp10_copy(cm->kf_y_prob, vp10_kf_y_mode_prob);
for (i = 0; i < INTRA_MODES; ++i)
for (j = 0; j < INTRA_MODES; ++j)
prob_diff_update(vp10_intra_mode_tree, cm->kf_y_prob[i][j],
counts->kf_y_mode[i][j], INTRA_MODES, header_bc);
} else {
#if CONFIG_REF_MV
update_inter_mode_probs(cm, header_bc, counts);
#else
for (i = 0; i < INTER_MODE_CONTEXTS; ++i)
prob_diff_update(vp10_inter_mode_tree, cm->fc->inter_mode_probs[i],
counts->inter_mode[i], INTER_MODES, header_bc);
#endif
#if CONFIG_EXT_INTER
update_inter_compound_mode_probs(cm, header_bc);
if (cm->reference_mode != COMPOUND_REFERENCE) {
for (i = 0; i < BLOCK_SIZE_GROUPS; i++) {
if (is_interintra_allowed_bsize_group(i)) {
vp10_cond_prob_diff_update(header_bc,
&fc->interintra_prob[i],
cm->counts.interintra[i]);
}
}
for (i = 0; i < BLOCK_SIZE_GROUPS; i++) {
prob_diff_update(vp10_interintra_mode_tree,
cm->fc->interintra_mode_prob[i],
counts->interintra_mode[i],
INTERINTRA_MODES, header_bc);
}
for (i = 0; i < BLOCK_SIZES; i++) {
if (is_interintra_allowed_bsize(i) && is_interintra_wedge_used(i))
vp10_cond_prob_diff_update(header_bc,
&fc->wedge_interintra_prob[i],
cm->counts.wedge_interintra[i]);
}
}
if (cm->reference_mode != SINGLE_REFERENCE) {
for (i = 0; i < BLOCK_SIZES; i++)
if (is_interinter_wedge_used(i))
vp10_cond_prob_diff_update(header_bc,
&fc->wedge_interinter_prob[i],
cm->counts.wedge_interinter[i]);
}
#endif // CONFIG_EXT_INTER
#if CONFIG_OBMC || CONFIG_WARPED_MOTION
for (i = BLOCK_8X8; i < BLOCK_SIZES; ++i)
prob_diff_update(vp10_motvar_tree, fc->motvar_prob[i],
counts->motvar[i], MOTION_VARIATIONS, header_bc);
#endif // CONFIG_OBMC || CONFIG_WARPED_MOTION
if (cm->interp_filter == SWITCHABLE)
update_switchable_interp_probs(cm, header_bc, counts);
for (i = 0; i < INTRA_INTER_CONTEXTS; i++)
vp10_cond_prob_diff_update(header_bc, &fc->intra_inter_prob[i],
counts->intra_inter[i]);
if (cpi->allow_comp_inter_inter) {
const int use_hybrid_pred = cm->reference_mode == REFERENCE_MODE_SELECT;
if (use_hybrid_pred)
for (i = 0; i < COMP_INTER_CONTEXTS; i++)
vp10_cond_prob_diff_update(header_bc, &fc->comp_inter_prob[i],
counts->comp_inter[i]);
}
if (cm->reference_mode != COMPOUND_REFERENCE) {
for (i = 0; i < REF_CONTEXTS; i++) {
for (j = 0; j < (SINGLE_REFS - 1); j ++) {
vp10_cond_prob_diff_update(header_bc, &fc->single_ref_prob[i][j],
counts->single_ref[i][j]);
}
}
}
if (cm->reference_mode != SINGLE_REFERENCE) {
for (i = 0; i < REF_CONTEXTS; i++) {
#if CONFIG_EXT_REFS
for (j = 0; j < (FWD_REFS - 1); j++) {
vp10_cond_prob_diff_update(header_bc, &fc->comp_ref_prob[i][j],
counts->comp_ref[i][j]);
}
for (j = 0; j < (BWD_REFS - 1); j++) {
vp10_cond_prob_diff_update(header_bc, &fc->comp_bwdref_prob[i][j],
counts->comp_bwdref[i][j]);
}
#else
for (j = 0; j < (COMP_REFS - 1); j++) {
vp10_cond_prob_diff_update(header_bc, &fc->comp_ref_prob[i][j],
counts->comp_ref[i][j]);
}
#endif // CONFIG_EXT_REFS
}
}
for (i = 0; i < BLOCK_SIZE_GROUPS; ++i)
prob_diff_update(vp10_intra_mode_tree, cm->fc->y_mode_prob[i],
counts->y_mode[i], INTRA_MODES, header_bc);
vp10_write_nmv_probs(cm, cm->allow_high_precision_mv, header_bc,
#if CONFIG_REF_MV
counts->mv);
#else
&counts->mv);
#endif
update_ext_tx_probs(cm, header_bc);
#if CONFIG_SUPERTX
if (!xd->lossless[0])
update_supertx_probs(cm, header_bc);
#endif // CONFIG_SUPERTX
}
#if CONFIG_GLOBAL_MOTION
write_global_motion(cpi, header_bc);
#endif // CONFIG_GLOBAL_MOTION
#if CONFIG_ANS
ans_write_init(&header_ans, data);
buf_ans_flush(header_bc, &header_ans);
header_size = ans_write_end(&header_ans);
assert(header_size <= 0xffff);
return header_size;
#else
vpx_stop_encode(header_bc);
assert(header_bc->pos <= 0xffff);
return header_bc->pos;
#endif // CONFIG_ANS
}
static int choose_size_bytes(uint32_t size, int spare_msbs) {
// Choose the number of bytes required to represent size, without
// using the 'spare_msbs' number of most significant bits.
// Make sure we will fit in 4 bytes to start with..
if (spare_msbs > 0 && size >> (32 - spare_msbs) != 0)
return -1;
// Normalise to 32 bits
size <<= spare_msbs;
if (size >> 24 != 0)
return 4;
else if (size >> 16 != 0)
return 3;
else if (size >> 8 != 0)
return 2;
else
return 1;
}
static void mem_put_varsize(uint8_t *const dst, const int sz, const int val) {
switch (sz) {
case 1:
dst[0] = (uint8_t)(val & 0xff);
break;
case 2:
mem_put_le16(dst, val);
break;
case 3:
mem_put_le24(dst, val);
break;
case 4:
mem_put_le32(dst, val);
break;
default:
assert("Invalid size" && 0);
break;
}
}
static int remux_tiles(const VP10_COMMON *const cm,
uint8_t *dst,
const uint32_t data_size,
const uint32_t max_tile_size,
const uint32_t max_tile_col_size,
int *const tile_size_bytes,
int *const tile_col_size_bytes) {
// Choose the tile size bytes (tsb) and tile column size bytes (tcsb)
#if CONFIG_EXT_TILE
// The top bit in the tile size field indicates tile copy mode, so we
// have 1 less bit to code the tile size
const int tsb = choose_size_bytes(max_tile_size, 1);
const int tcsb = choose_size_bytes(max_tile_col_size, 0);
#else
const int tsb = choose_size_bytes(max_tile_size, 0);
const int tcsb = 4; // This is ignored
(void) max_tile_col_size;
#endif // CONFIG_EXT_TILE
assert(tsb > 0);
assert(tcsb > 0);
*tile_size_bytes = tsb;
*tile_col_size_bytes = tcsb;
if (tsb == 4 && tcsb == 4) {
return data_size;
} else {
uint32_t wpos = 0;
uint32_t rpos = 0;
#if CONFIG_EXT_TILE
int tile_row;
int tile_col;
for (tile_col = 0 ; tile_col < cm->tile_cols ; tile_col++) {
// All but the last column has a column header
if (tile_col < cm->tile_cols - 1) {
uint32_t tile_col_size = mem_get_le32(dst + rpos);
rpos += 4;
// Adjust the tile column size by the number of bytes removed
// from the tile size fields.
tile_col_size -= (4-tsb) * cm->tile_rows;
mem_put_varsize(dst + wpos, tcsb, tile_col_size);
wpos += tcsb;
}
for (tile_row = 0 ; tile_row < cm->tile_rows ; tile_row++) {
// All, including the last row has a header
uint32_t tile_header = mem_get_le32(dst + rpos);
rpos += 4;
// If this is a copy tile, we need to shift the MSB to the
// top bit of the new width, and there is no data to copy.
if (tile_header >> 31 != 0) {
if (tsb < 4)
tile_header >>= 32 - 8 * tsb;
mem_put_varsize(dst + wpos, tsb, tile_header);
wpos += tsb;
} else {
mem_put_varsize(dst + wpos, tsb, tile_header);
wpos += tsb;
memmove(dst + wpos, dst + rpos, tile_header);
rpos += tile_header;
wpos += tile_header;
}
}
}
#else
const int n_tiles = cm->tile_cols * cm->tile_rows;
int n;
for (n = 0; n < n_tiles; n++) {
int tile_size;
if (n == n_tiles - 1) {
tile_size = data_size - rpos;
} else {
tile_size = mem_get_le32(dst + rpos);
rpos += 4;
mem_put_varsize(dst + wpos, tsb, tile_size);
wpos += tsb;
}
memmove(dst + wpos, dst + rpos, tile_size);
rpos += tile_size;
wpos += tile_size;
}
#endif // CONFIG_EXT_TILE
assert(rpos > wpos);
assert(rpos == data_size);
return wpos;
}
}
void vp10_pack_bitstream(VP10_COMP *const cpi, uint8_t *dst, size_t *size) {
uint8_t *data = dst;
uint32_t compressed_header_size;
uint32_t uncompressed_header_size;
uint32_t data_size;
struct vpx_write_bit_buffer wb = {data, 0};
struct vpx_write_bit_buffer saved_wb;
unsigned int max_tile_size;
unsigned int max_tile_col_size;
int tile_size_bytes;
int tile_col_size_bytes;
VP10_COMMON *const cm = &cpi->common;
const int have_tiles = cm->tile_cols * cm->tile_rows > 1;
// Write the uncompressed header
write_uncompressed_header(cpi, &wb);
#if CONFIG_EXT_REFS
if (cm->show_existing_frame) {
*size = vpx_wb_bytes_written(&wb);
return;
}
#endif // CONFIG_EXT_REFS
// We do not know these in advance. Output placeholder bit.
saved_wb = wb;
// Write tile size magnitudes
if (have_tiles) {
// Note that the last item in the uncompressed header is the data
// describing tile configuration.
#if CONFIG_EXT_TILE
// Number of bytes in tile column size - 1
vpx_wb_write_literal(&wb, 0, 2);
#endif // CONFIG_EXT_TILE
// Number of bytes in tile size - 1
vpx_wb_write_literal(&wb, 0, 2);
}
// Size of compressed header
vpx_wb_write_literal(&wb, 0, 16);
uncompressed_header_size = (uint32_t)vpx_wb_bytes_written(&wb);
data += uncompressed_header_size;
vpx_clear_system_state();
// Write the compressed header
compressed_header_size = write_compressed_header(cpi, data);
data += compressed_header_size;
// Write the encoded tile data
data_size = write_tiles(cpi, data, &max_tile_size, &max_tile_col_size);
if (have_tiles) {
data_size = remux_tiles(cm, data, data_size,
max_tile_size, max_tile_col_size,
&tile_size_bytes, &tile_col_size_bytes);
}
data += data_size;
// Now fill in the gaps in the uncompressed header.
if (have_tiles) {
#if CONFIG_EXT_TILE
assert(tile_col_size_bytes >= 1 && tile_col_size_bytes <= 4);
vpx_wb_write_literal(&saved_wb, tile_col_size_bytes - 1, 2);
#endif // CONFIG_EXT_TILE
assert(tile_size_bytes >= 1 && tile_size_bytes <= 4);
vpx_wb_write_literal(&saved_wb, tile_size_bytes - 1, 2);
}
// TODO(jbb): Figure out what to do if compressed_header_size > 16 bits.
assert(compressed_header_size <= 0xffff);
vpx_wb_write_literal(&saved_wb, compressed_header_size, 16);
*size = data - dst;
}