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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AV1_ENCODER_TOKENIZE_H_
#define AV1_ENCODER_TOKENIZE_H_
#include "av1/common/entropy.h"
#include "av1/encoder/block.h"
#include "av1/encoder/treewriter.h"
#ifdef __cplusplus
extern "C" {
#endif
#define EOSB_TOKEN 127 // Not signalled, encoder only
#if CONFIG_HIGHBITDEPTH
typedef int32_t EXTRABIT;
#else
typedef int16_t EXTRABIT;
#endif
typedef struct {
int16_t token;
EXTRABIT extra;
} TOKENVALUE;
typedef struct {
aom_cdf_prob (*tail_cdf)[CDF_SIZE(ENTROPY_TOKENS)];
aom_cdf_prob (*head_cdf)[CDF_SIZE(ENTROPY_TOKENS)];
int eob_val;
int first_val;
const aom_prob *context_tree;
EXTRABIT extra;
uint8_t token;
uint8_t skip_eob_node;
} TOKENEXTRA;
extern const aom_tree_index av1_coef_tree[];
extern const aom_tree_index av1_coef_con_tree[];
int av1_is_skippable_in_plane(MACROBLOCK *x, BLOCK_SIZE bsize, int plane);
struct AV1_COMP;
struct ThreadData;
struct tokenize_b_args {
const struct AV1_COMP *cpi;
struct ThreadData *td;
TOKENEXTRA **tp;
int this_rate;
};
typedef enum {
OUTPUT_ENABLED = 0,
DRY_RUN_NORMAL,
DRY_RUN_COSTCOEFFS,
} RUN_TYPE;
// Note in all the tokenize functions rate if non NULL is incremented
// with the coefficient token cost only if dry_run = DRY_RUN_COSTCOEFS,
// otherwise rate is not incremented.
#if CONFIG_VAR_TX
void av1_tokenize_sb_vartx(const struct AV1_COMP *cpi, struct ThreadData *td,
TOKENEXTRA **t, RUN_TYPE dry_run, int mi_row,
int mi_col, BLOCK_SIZE bsize, int *rate);
#endif
#if CONFIG_PALETTE
void av1_tokenize_palette_sb(const struct AV1_COMP *cpi,
const struct ThreadData *const td, int plane,
TOKENEXTRA **t, RUN_TYPE dry_run, BLOCK_SIZE bsize,
int *rate);
#endif // CONFIG_PALETTE
void av1_tokenize_sb(const struct AV1_COMP *cpi, struct ThreadData *td,
TOKENEXTRA **t, RUN_TYPE dry_run, BLOCK_SIZE bsize,
int *rate, const int mi_row, const int mi_col);
#if CONFIG_SUPERTX
void av1_tokenize_sb_supertx(const struct AV1_COMP *cpi, struct ThreadData *td,
TOKENEXTRA **t, RUN_TYPE dry_run, int mi_row,
int mi_col, BLOCK_SIZE bsize, int *rate);
#endif
extern const int16_t *av1_dct_value_cost_ptr;
/* TODO: The Token field should be broken out into a separate char array to
* improve cache locality, since it's needed for costing when the rest of the
* fields are not.
*/
extern const TOKENVALUE *av1_dct_value_tokens_ptr;
extern const TOKENVALUE *av1_dct_cat_lt_10_value_tokens;
extern const int *av1_dct_cat_lt_10_value_cost;
extern const int16_t av1_cat6_low_cost[256];
#if CONFIG_HIGHBITDEPTH
#define CAT6_HIGH_COST_ENTRIES 1024
#else
#define CAT6_HIGH_COST_ENTRIES 64
#endif
extern const int av1_cat6_high_cost[CAT6_HIGH_COST_ENTRIES];
extern const uint8_t av1_cat6_skipped_bits_discount[8];
static INLINE void av1_get_token_extra(int v, int16_t *token, EXTRABIT *extra) {
if (v >= CAT6_MIN_VAL || v <= -CAT6_MIN_VAL) {
*token = CATEGORY6_TOKEN;
if (v >= CAT6_MIN_VAL)
*extra = 2 * v - 2 * CAT6_MIN_VAL;
else
*extra = -2 * v - 2 * CAT6_MIN_VAL + 1;
return;
}
*token = av1_dct_cat_lt_10_value_tokens[v].token;
*extra = av1_dct_cat_lt_10_value_tokens[v].extra;
}
static INLINE int16_t av1_get_token(int v) {
if (v >= CAT6_MIN_VAL || v <= -CAT6_MIN_VAL) return 10;
return av1_dct_cat_lt_10_value_tokens[v].token;
}
static INLINE int av1_get_token_cost(int v, int16_t *token, int cat6_bits) {
if (v >= CAT6_MIN_VAL || v <= -CAT6_MIN_VAL) {
EXTRABIT extrabits;
*token = CATEGORY6_TOKEN;
extrabits = abs(v) - CAT6_MIN_VAL;
return av1_cat6_low_cost[extrabits & 0xff] +
av1_cat6_high_cost[extrabits >> 8] -
av1_cat6_skipped_bits_discount[18 - cat6_bits];
}
*token = av1_dct_cat_lt_10_value_tokens[v].token;
return av1_dct_cat_lt_10_value_cost[v];
}
#if !CONFIG_PVQ || CONFIG_VAR_TX
static INLINE int get_tx_eob(const struct segmentation *seg, int segment_id,
TX_SIZE tx_size) {
const int eob_max = tx_size_2d[tx_size];
return segfeature_active(seg, segment_id, SEG_LVL_SKIP) ? 0 : eob_max;
}
#endif
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AV1_ENCODER_TOKENIZE_H_
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