libavutil/base64.h

   1 /*
   2  * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef AVUTIL_BASE64_H
  22 #define AVUTIL_BASE64_H
  23
  24 #include <stdint.h>
  25
  26 /**
  27  * Decodes the base64-encoded string in \p in and puts the decoded
  28  * data in \p out.
  29  *
  30  * @param out_size size in bytes of the \p out buffer, it should be at
  31  * least 3/4 of the length of \p in
  32  * @return the number of bytes written, or a negative value in case of
  33  * error
  34  */
  35 int av_base64_decode(uint8_t *out, const char *in, int out_size);
  36
  37 /**
  38  * Encodes in base64 the data in \p in and puts the resulting string
  39  * in \p out.
  40  *
  41  * @param out_size size in bytes of the \p out string, it should be at
  42  * least ((\p in_size + 2) / 3) * 4 + 1
  43  * @param in_size size in bytes of the \p in buffer
  44  * @return the string containing the encoded data, or NULL in case of
  45  * error
  46  */
  47 char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
  48
  49 #endif /* AVUTIL_BASE64_H */