chromium/third_party/libaom/source/libaom/aom/src/aom_integer.c

/*
 * Copyright (c) 2018, 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.
 */
#include <assert.h>

#include "aom/aom_integer.h"

static const size_t kMaximumLeb128Size = …;
static const uint8_t kLeb128ByteMask = …;  // Binary: 01111111

// Disallow values larger than 32-bits to ensure consistent behavior on 32 and
// 64 bit targets: value is typically used to determine buffer allocation size
// when decoded.
static const uint64_t kMaximumLeb128Value = …;

size_t aom_uleb_size_in_bytes(uint64_t value) { … }

int aom_uleb_decode(const uint8_t *buffer, size_t available, uint64_t *value,
                    size_t *length) { … }

int aom_uleb_encode(uint64_t value, size_t available, uint8_t *coded_value,
                    size_t *coded_size) { … }

int aom_uleb_encode_fixed_size(uint64_t value, size_t available,
                               size_t pad_to_size, uint8_t *coded_value,
                               size_t *coded_size) { … }