/* * 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 out buffer (including the * null terminator), must be at least AV_BASE64_SIZE(in_size) * @param in input buffer containing the data to encode * @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 to a * null-terminated string. */ #define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1) /** * @} */ #endif /* AVUTIL_BASE64_H */