/*
  * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
  *
  * 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
  */
 

 #ifndef AVUTIL_BASE64_H
 #define AVUTIL_BASE64_H

 #include <stdint.h>
 

 /**

  * @defgroup lavu_base64 Base64
  * @ingroup lavu_crypto
  * @{
  */
 
 
 /**

  * Decode a base64-encoded string.

  *

  * @param out      buffer for decoded data
  * @param in       null-terminated input string
  * @param out_size size in bytes of the out buffer, must be at
  *                 least 3/4 of the length of in
  * @return         number of bytes written, or a negative value in case of
  *                 invalid input

  */

 int av_base64_decode(uint8_t *out, const char *in, int out_size);

 
 /**

  * Encode data to base64 and null-terminate.

  *

  * @param out      buffer for encoded data
  * @param out_size size in bytes of the output buffer, must be at
  *                 least AV_BASE64_SIZE(in_size)
  * @param in_size  size in bytes of the 'in' buffer
  * @return         'out' or NULL in case of error

  */

 char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);

 /**
  * Calculate the output size needed to base64-encode x bytes.
  */
 #define AV_BASE64_SIZE(x)  (((x)+2) / 3 * 4 + 1)
 

  /**
   * @}
   */
 

 #endif /* AVUTIL_BASE64_H */