1/*
2 * copyright (c) 2015 rcombs
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_internal.h"
25#include <stdint.h>
26
27typedef 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
34typedef 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