140 lines
4.1 KiB
C
140 lines
4.1 KiB
C
/*
|
|
* 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 vpx_prob *context_tree;
|
|
int16_t token;
|
|
EXTRABIT extra;
|
|
} TOKENEXTRA;
|
|
|
|
extern const vpx_tree_index vp9_coef_tree[];
|
|
extern const vpx_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, int seg_skip,
|
|
BLOCK_SIZE bsize);
|
|
|
|
typedef struct {
|
|
const vpx_prob *prob;
|
|
int len;
|
|
int base_val;
|
|
const int16_t *cost;
|
|
} vp9_extra_bit;
|
|
|
|
// indexed by token value
|
|
extern const vp9_extra_bit vp9_extra_bits[ENTROPY_TOKENS];
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
extern const vp9_extra_bit vp9_extra_bits_high10[ENTROPY_TOKENS];
|
|
extern const vp9_extra_bit vp9_extra_bits_high12[ENTROPY_TOKENS];
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
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 int *vp9_dct_cat_lt_10_value_cost;
|
|
extern const int16_t vp9_cat6_low_cost[256];
|
|
extern const int vp9_cat6_high_cost[64];
|
|
extern const int vp9_cat6_high10_high_cost[256];
|
|
extern const int vp9_cat6_high12_high_cost[1024];
|
|
static INLINE int vp9_get_cost(int16_t token, EXTRABIT extrabits,
|
|
const int *cat6_high_table) {
|
|
if (token != CATEGORY6_TOKEN)
|
|
return vp9_extra_bits[token].cost[extrabits >> 1];
|
|
return vp9_cat6_low_cost[(extrabits >> 1) & 0xff]
|
|
+ cat6_high_table[extrabits >> 9];
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
static INLINE const int* 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 int* 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;
|
|
}
|
|
|
|
static INLINE int vp9_get_token_cost(int v, int16_t *token,
|
|
const int *cat6_high_table) {
|
|
if (v >= CAT6_MIN_VAL || v <= -CAT6_MIN_VAL) {
|
|
EXTRABIT extrabits;
|
|
*token = CATEGORY6_TOKEN;
|
|
extrabits = abs(v) - CAT6_MIN_VAL;
|
|
return vp9_cat6_low_cost[extrabits & 0xff] +
|
|
cat6_high_table[extrabits >> 8];
|
|
}
|
|
*token = vp9_dct_cat_lt_10_value_tokens[v].token;
|
|
return vp9_dct_cat_lt_10_value_cost[v];
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#endif // VP9_ENCODER_VP9_TOKENIZE_H_
|