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/*
* Copyright (c) 2021, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 3-Clause Clear License
* and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
* License was not distributed with this source code in the LICENSE file, you
* can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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
* aomedia.org/license/patent-license/.
*/
#ifndef AOM_AOM_DSP_BITREADER_BUFFER_H_
#define AOM_AOM_DSP_BITREADER_BUFFER_H_
#include <limits.h>
#include "aom/aom_integer.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef void (*aom_rb_error_handler)(void *data);
struct aom_read_bit_buffer {
const uint8_t *bit_buffer;
const uint8_t *bit_buffer_end;
uint32_t bit_offset;
void *error_handler_data;
aom_rb_error_handler error_handler;
};
size_t aom_rb_bytes_read(const struct aom_read_bit_buffer *rb);
int aom_rb_read_bit(struct aom_read_bit_buffer *rb);
int aom_rb_read_literal(struct aom_read_bit_buffer *rb, int bits);
uint32_t aom_rb_read_unsigned_literal(struct aom_read_bit_buffer *rb, int bits);
int aom_rb_read_inv_signed_literal(struct aom_read_bit_buffer *rb, int bits);
uint32_t aom_rb_read_uvlc(struct aom_read_bit_buffer *rb);
int16_t aom_rb_read_signed_primitive_refsubexpfin(
struct aom_read_bit_buffer *rb, uint16_t n, uint16_t k, int16_t ref);
uint16_t aom_rb_read_primitive_quniform(struct aom_read_bit_buffer *rb,
uint16_t n);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_AOM_DSP_BITREADER_BUFFER_H_