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| | | /* |
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| | | * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com) |
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| | | * |
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| | | * This file is part of FFmpeg. |
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| | | * |
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| | | * FFmpeg is free software; you can redistribute it and/or |
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| | | * modify it under the terms of the GNU Lesser General Public |
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| | | * License as published by the Free Software Foundation; either |
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| | | * version 2.1 of the License, or (at your option) any later version. |
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| | | * |
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| | | * FFmpeg is distributed in the hope that it will be useful, |
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| | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| | | * Lesser General Public License for more details. |
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| | | * |
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| | | * You should have received a copy of the GNU Lesser General Public |
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| | | * License along with FFmpeg; if not, write to the Free Software |
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| | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| | | */ |
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| | | |
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| | | #ifndef AVUTIL_BASE64_H |
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| | | #define AVUTIL_BASE64_H |
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| | | |
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| | | #include <stdint.h> |
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| | | |
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| | | /** |
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| | | * @defgroup lavu_base64 Base64 |
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| | | * @ingroup lavu_crypto |
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| | | * @{ |
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| | | */ |
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| | | |
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| | | /** |
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| | | * Decode a base64-encoded string. |
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| | | * |
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| | | * @param out buffer for decoded data |
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| | | * @param in null-terminated input string |
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| | | * @param out_size size in bytes of the out buffer, must be at |
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| | | * least 3/4 of the length of in, that is AV_BASE64_DECODE_SIZE(strlen(in)) |
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| | | * @return number of bytes written, or a negative value in case of |
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| | | * invalid input |
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| | | */ |
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| | | int av_base64_decode(uint8_t *out, const char *in, int out_size); |
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| | | |
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| | | /** |
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| | | * Calculate the output size in bytes needed to decode a base64 string |
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| | | * with length x to a data buffer. |
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| | | */ |
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| | | #define AV_BASE64_DECODE_SIZE(x) ((x) * 3LL / 4) |
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| | | |
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| | | /** |
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| | | * Encode data to base64 and null-terminate. |
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| | | * |
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| | | * @param out buffer for encoded data |
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| | | * @param out_size size in bytes of the out buffer (including the |
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| | | * null terminator), must be at least AV_BASE64_SIZE(in_size) |
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| | | * @param in input buffer containing the data to encode |
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| | | * @param in_size size in bytes of the in buffer |
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| | | * @return out or NULL in case of error |
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| | | */ |
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| | | char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size); |
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| | | |
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| | | /** |
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| | | * Calculate the output size needed to base64-encode x bytes to a |
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| | | * null-terminated string. |
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| | | */ |
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| | | #define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1) |
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| | | |
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| | | /** |
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| | | * @} |
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| | | */ |
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| | | |
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| | | #endif /* AVUTIL_BASE64_H */ |
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