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/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* @ingroup lavu_md5
* Public header for MD5 hash function implementation.
*/
#ifndef AVUTIL_MD5_H
#define AVUTIL_MD5_H
#include <stddef.h>
#include <stdint.h>
#include "attributes.h"
#include "version.h"
/**
* @defgroup lavu_md5 MD5
* @ingroup lavu_hash
* MD5 hash function implementation.
*
* @{
*/
extern const int av_md5_size;
struct AVMD5;
/**
* Allocate an AVMD5 context.
*/
struct AVMD5 *av_md5_alloc(void);
/**
* Initialize MD5 hashing.
*
* @param ctx pointer to the function context (of size av_md5_size)
*/
void av_md5_init(struct AVMD5 *ctx);
/**
* Update hash value.
*
* @param ctx hash function context
* @param src input data to update hash with
* @param len input data length
*/
#if FF_API_CRYPTO_SIZE_T
void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, int len);
#else
void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, size_t len);
#endif
/**
* Finish hashing and output digest value.
*
* @param ctx hash function context
* @param dst buffer where output digest value is stored
*/
void av_md5_final(struct AVMD5 *ctx, uint8_t *dst);
/**
* Hash an array of data.
*
* @param dst The output buffer to write the digest into
* @param src The data to hash
* @param len The length of the data, in bytes
*/
#if FF_API_CRYPTO_SIZE_T
void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len);
#else
void av_md5_sum(uint8_t *dst, const uint8_t *src, size_t len);
#endif
/**
* @}
*/
#endif /* AVUTIL_MD5_H */