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/*
* 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.
*/
#ifndef VP9_ENCODER_VP9_TOKENIZE_H_
#define VP9_ENCODER_VP9_TOKENIZE_H_
#include "vp9/common/vp9_entropy.h"
#include "vp9/encoder/vp9_block.h"
#include "vp9/encoder/vp9_treewriter.h"
#ifdef __cplusplus
extern "C" {
#endif
#define EOSB_TOKEN 127 // Not signalled, encoder only
#if CONFIG_VP9_HIGHBITDEPTH
typedef int32_t EXTRABIT;
#else
typedef int16_t EXTRABIT;
#endif
typedef struct {
int16_t token;
EXTRABIT extra;
} TOKENVALUE;
typedef struct {
const vp9_prob *context_tree;
EXTRABIT extra;
uint8_t token;
uint8_t skip_eob_node;
} TOKENEXTRA;
extern const vp9_tree_index vp9_coef_tree[];
extern const vp9_tree_index vp9_coef_con_tree[];
extern const struct vp9_token vp9_coef_encodings[];
int vp9_is_skippable_in_plane(MACROBLOCK *x, BLOCK_SIZE bsize, int plane);
int vp9_has_high_freq_in_plane(MACROBLOCK *x, BLOCK_SIZE bsize, int plane);
struct VP9_COMP;
struct ThreadData;
void vp9_tokenize_sb(struct VP9_COMP *cpi, struct ThreadData *td,
TOKENEXTRA **t, int dry_run, BLOCK_SIZE bsize);
extern const int16_t *vp9_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 *vp9_dct_value_tokens_ptr;
extern const TOKENVALUE *vp9_dct_cat_lt_10_value_tokens;
extern const int16_t vp9_cat6_low_cost[256];
extern const int16_t vp9_cat6_high_cost[128];
extern const int16_t vp9_cat6_high10_high_cost[512];
extern const int16_t vp9_cat6_high12_high_cost[2048];
static INLINE int16_t vp9_get_cost(int16_t token, EXTRABIT extrabits,
const int16_t *cat6_high_table) {
if (token != CATEGORY6_TOKEN)
return vp9_extra_bits[token].cost[extrabits];
return vp9_cat6_low_cost[extrabits & 0xff]
+ cat6_high_table[extrabits >> 8];
}
#if CONFIG_VP9_HIGHBITDEPTH
static INLINE const int16_t* vp9_get_high_cost_table(int bit_depth) {
return bit_depth == 8 ? vp9_cat6_high_cost
: (bit_depth == 10 ? vp9_cat6_high10_high_cost :
vp9_cat6_high12_high_cost);
}
#else
static INLINE const int16_t* vp9_get_high_cost_table(int bit_depth) {
(void) bit_depth;
return vp9_cat6_high_cost;
}
#endif // CONFIG_VP9_HIGHBITDEPTH
static INLINE void vp9_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 = vp9_dct_cat_lt_10_value_tokens[v].token;
*extra = vp9_dct_cat_lt_10_value_tokens[v].extra;
}
static INLINE int16_t vp9_get_token(int v) {
if (v >= CAT6_MIN_VAL || v <= -CAT6_MIN_VAL)
return 10;
return vp9_dct_cat_lt_10_value_tokens[v].token;
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP9_ENCODER_VP9_TOKENIZE_H_
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