diff options
| -rw-r--r-- | libavutil/des.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libavutil/des.h b/libavutil/des.h index d9fe7a42e4..66dac3b9d7 100644 --- a/libavutil/des.h +++ b/libavutil/des.h @@ -22,6 +22,16 @@ #ifndef FFMPEG_DES_H #define FFMPEG_DES_H +/** + * \brief en- or decrypt an 64-bit block of data with DES + * \param in data to process. + * \param key key to use for en-/decryption. + * \param decrypt if 0 encrypt, else decrypt. + * \return processed data + * + * If your input data is in 8-bit blocks treat it as big-endian + * (use e.g. AV_RB64 and AV_WB64). + */ uint64_t ff_des_encdec(uint64_t in, uint64_t key, int decrypt); #endif /* FFMPEG_DES_H */ |