blob: 494425878dc5a15881b101f5f5ab7c2a5f2a69c5
| 1 | /* |
| 2 | * copyright (c) 2015 Rodger Combs <rodger.combs@gmail.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_AES_INTERNAL_H |
| 22 | #define AVUTIL_AES_INTERNAL_H |
| 23 | |
| 24 | #include "mem.h" |
| 25 | #include <stdint.h> |
| 26 | |
| 27 | typedef union { |
| 28 | uint64_t u64[2]; |
| 29 | uint32_t u32[4]; |
| 30 | uint8_t u8x4[4][4]; |
| 31 | uint8_t u8[16]; |
| 32 | } av_aes_block; |
| 33 | |
| 34 | typedef struct AVAES { |
| 35 | // Note: round_key[16] is accessed in the init code, but this only |
| 36 | // overwrites state, which does not matter (see also commit ba554c0). |
| 37 | DECLARE_ALIGNED(16, av_aes_block, round_key)[15]; |
| 38 | DECLARE_ALIGNED(16, av_aes_block, state)[2]; |
| 39 | int rounds; |
| 40 | void (*crypt)(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int rounds); |
| 41 | } AVAES; |
| 42 | |
| 43 | #endif /* AVUTIL_AES_INTERNAL_H */ |
| 44 |