chromium/third_party/libaom/source/libaom/common/rawenc.c

/*
 * 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.
 */

#include <stdbool.h>
#include "common/rawenc.h"

// Number of bytes to write per batch in write_greyscale.
#define BATCH_SIZE …

// Interface to writing to either a file or MD5Context. Takes a pointer to
// either the file or MD5Context, the buffer, the size of each element, and
// number of elements to write. Note that size and nmemb (last two args) must
// be unsigned int, as the interface to MD5Update requires that.
WRITER;

static void write_file(void *fp, const uint8_t *buffer, unsigned int size,
                       unsigned int nmemb) { … }

static void write_md5(void *md5, const uint8_t *buffer, unsigned int size,
                      unsigned int nmemb) { … }

// Writes out n neutral chroma samples (for greyscale).
static void write_greyscale(const aom_image_t *img, int n, WRITER writer_func,
                            void *file_or_md5) { … }

// Encapsulates the logic for writing raw data to either an image file or
// to an MD5 context.
static void raw_write_image_file_or_md5(const aom_image_t *img,
                                        const int *planes, const int num_planes,
                                        void *file_or_md5, WRITER writer_func) { … }

void raw_write_image_file(const aom_image_t *img, const int *planes,
                          const int num_planes, FILE *file) { … }

void raw_update_image_md5(const aom_image_t *img, const int *planes,
                          const int num_planes, MD5Context *md5) { … }