bitwriter_buffer.h

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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_AOM_DSP_BITWRITER_BUFFER_H_

#define AOM_AOM_DSP_BITWRITER_BUFFER_H_

#include "aom/aom_integer.h"

#ifdef __cplusplus

extern "C" {

#endif

struct aom_write_bit_buffer {

  uint8_t *bit_buffer;

  uint32_t bit_offset;

};

int aom_wb_is_byte_aligned(const struct aom_write_bit_buffer *wb);

uint32_t aom_wb_bytes_written(const struct aom_write_bit_buffer *wb);

void aom_wb_write_bit(struct aom_write_bit_buffer *wb, int bit);

void aom_wb_write_literal(struct aom_write_bit_buffer *wb, int data, int bits);

void aom_wb_write_unsigned_literal(struct aom_write_bit_buffer *wb,

                                   uint32_t data, int bits);

void aom_wb_overwrite_literal(struct aom_write_bit_buffer *wb, int data,

                              int bits);

void aom_wb_write_inv_signed_literal(struct aom_write_bit_buffer *wb, int data,

                                     int bits);

void aom_wb_write_uvlc(struct aom_write_bit_buffer *wb, uint32_t v);

void aom_wb_write_signed_primitive_refsubexpfin(struct aom_write_bit_buffer *wb,

                                                uint16_t n, uint16_t k,

                                                int16_t ref, int16_t v);

#ifdef __cplusplus

}  // extern "C"

#endif

#endif  // AOM_AOM_DSP_BITWRITER_BUFFER_H_