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  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. #ifndef AVUTIL_BASE64_H
  21. #define AVUTIL_BASE64_H
  22. #include <stdint.h>
  23. /**
  24. * Decodes the base64-encoded string in \p in and puts the decoded
  25. * data in \p out.
  26. *
  27. * @param out_size size in bytes of the \p out buffer, it should be at
  28. * least 3/4 of the length of \p in
  29. * @return the number of bytes written, or a negative value in case of
  30. * error
  31. */
  32. int av_base64_decode(uint8_t *out, const char *in, int out_size);
  33. /**
  34. * Encodes in base64 the data in \p in and puts the resulting string
  35. * in \p out.
  36. *
  37. * @param out_size size in bytes of the \p out string, it should be at
  38. * least ((\p in_size + 2) / 3) * 4 + 1
  39. * @param in_size size in bytes of the \p in buffer
  40. * @return the string containing the encoded data, or NULL in case of
  41. * error
  42. */
  43. char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
  44. #endif /* AVUTIL_BASE64_H */