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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 AOM_AV1_DECODER_ACCOUNTING_H_
#define AOM_AV1_DECODER_ACCOUNTING_H_
#include <stdlib.h>
#include "aom/aomdx.h"
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#define AOM_ACCOUNTING_HASH_SIZE (1021)
/* Max number of entries for symbol types in the dictionary (increase as
necessary). */
#define MAX_SYMBOL_TYPES (256)
/*The resolution of fractional-precision bit usage measurements, i.e.,
3 => 1/8th bits.*/
#define AOM_ACCT_BITRES (3)
typedef struct {
int16_t x;
int16_t y;
} AccountingSymbolContext;
typedef struct {
AccountingSymbolContext context;
uint32_t id;
/** Number of bits in units of 1/8 bit. */
uint32_t bits;
uint32_t samples;
} AccountingSymbol;
/** Dictionary for translating strings into id. */
typedef struct {
char *(strs[MAX_SYMBOL_TYPES]);
int num_strs;
} AccountingDictionary;
typedef struct {
/** All recorded symbols decoded. */
AccountingSymbol *syms;
/** Number of syntax actually recorded. */
int num_syms;
/** Raw symbol decoding calls for non-binary values. */
int num_multi_syms;
/** Raw binary symbol decoding calls. */
int num_binary_syms;
/** Dictionary for translating strings into id. */
AccountingDictionary dictionary;
} AccountingSymbols;
struct Accounting {
AccountingSymbols syms;
/** Size allocated for symbols (not all may be used). */
int num_syms_allocated;
int16_t hash_dictionary[AOM_ACCOUNTING_HASH_SIZE];
AccountingSymbolContext context;
uint32_t last_tell_frac;
};
void aom_accounting_init(Accounting *accounting);
void aom_accounting_reset(Accounting *accounting);
void aom_accounting_clear(Accounting *accounting);
void aom_accounting_set_context(Accounting *accounting, int16_t x, int16_t y);
int aom_accounting_dictionary_lookup(Accounting *accounting, const char *str);
void aom_accounting_record(Accounting *accounting, const char *str,
uint32_t bits);
void aom_accounting_dump(Accounting *accounting);
#ifdef __cplusplus
} // extern "C"
#endif // __cplusplus
#endif // AOM_AV1_DECODER_ACCOUNTING_H_
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