/*
  * 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 */